Cambridge Isotope Laboratories, Inc.
isotope.com

RESEARCH PRODUCTS

Vitamins andTheir Metabolites
For Profiling and Quantitation

Vitamins are organic compounds that directly or indirectly participate in organisms’ biochemical reactions. These are divided into twoclasses, based on their solubility in fat (includes A, D, E, and K) and water (includes B and C).
Cambridge Isotope Laboratories, Inc. offers unlabeled and stable isotope-labeled vitamins as neat compounds and/or insolution at specified concentrations. These can be used in a wide range of applications, such as metabolism and pathophysiology
explorations, as well as disease biomarker evaluation in preclinical and clinical MS studies (e.g., vitamin D deficiency). These standards
help facilitate accurate and precise quantification of endogenous metabolites in biological matrices.

Water Soluble
Catalog No.
CLM-9548
CLM-7321-N
CLM-7667
ULM-10004
V-053*
DLM-8741
CNLM-8851
ULM-9123
CNLM-10744
CLM-9925
DLM-6883
CNLM-9757
CLM-9954
DLM-4578
CNLM-9512
DLM-2872
CNLM-7694
ULM-10003
DLM-9069
ULM-9118

Description
Concentration
Unit Size
5-Methyltetrahydrofolic acid (prefolic A) (glutamic acid-13C5, 99%) CP 95%
neat
1 mg, 5 mg
5-Methyltetrahydrofolic acid, calcium salt (prefolic A) (glutamic acid-13C5, 98%) neat
1 mg, 5 mg
CP 95%
Vitamin B1 hydrochloride (thiamine hydrochloride)
neat
5 mg
(4,5,4-methyl-13C3, 99%) CP 97%
Vitamin B1 hydrochloride (thiamine hydrochloride) (unlabeled)neat
1 mg, 5 mg, 10 mg
Vitamin B1 pyrophosphate (thiamine pyrophosphate) (unlabeled)
1 mg/mL in methanol:water (1:1) 1 mL
Vitamin B1 pyrophosphate chloride (thiamine pyrophosphate chloride)
neat
1 mg
(pyrimidyl-methyl-D3, 98%)
Vitamin B2 (riboflavin) (13C4, 99%; 15N2, 98%) CP 97%
neat
1 mg, 5 mg, 10 mg
Vitamin B2 (riboflavin) (unlabeled) CP 97%
neat
1 mg, 5 mg, 10 mg
Vitamin B2 phosphate (riboflavin phosphate) (13C4, 99%; 15N2, 98%) CP 90%
neat
1 mg
Vitamin B3 (nicotinamide) (13C6, 99%)neat
1 mg, 5 mg
Vitamin B3 (nicotinamide) (D4, 98%)neat
0.1 g, 0.5 g
Vitamin B3 (nicotinamide) (2,6-carbonyl-13C3, 99%; ring-1-15N, 98%)
neat
1 mg
Vitamin B3 (nicotinic acid) (13C6, 99%)neat
1 mg, 5 mg
Vitamin B3 (nicotinic acid) (D4, 98%)neat
5 mg, 1 g
Vitamin B3 (nicotinic acid) (2,6,carboxyl-13C3, 99%; 15N, 98%) CP 97%
neat
1 mg
Vitamin B3, ethyl ester (nicotinic acid, ethyl ester) (2,4,5,6-D4, 98%)
neat
5g
Vitamin B5, calcium salt·H2O (calcium pantothenate·H2O)
neat
10 mg
(β-alanyl-13C3, 99%; 15N, 98%)
Vitamin B5, calcium salt·H2O (calcium pantothenate·H2O) (unlabeled)neat
1 mg, 5 mg, 10 mg
Vitamin B6 (pyridoxal) (methyl-D3, 98%)neat
1 mg, 5 mg, 10 mg
Vitamin B6 (pyridoxal·HCl) (unlabeled)neat
1 mg, 5 mg, 10 mg*Products listed with an asterisk are available only in the US, Switzerland, and Australia.
Chemical purity (CP) is 98% or greater, unless otherwise specified. MPT (microbiological and pyrogen tested) may be available; please inquire.
For research use only. Not for use in diagnostic procedures.

Cambridge Isotope Laboratories, Inc.
North America: 1.800.322.1174 cilsales@isotope.com | International: +1.978.749.8000 intlsales@isotope.com | fax: 1.978.749.2768 | isotope.com

| Vitamins and Their Metabolites

Cambridge Isotope Laboratories, Inc.

Catalog No.

Description

Concentration

Unit Size

DLM-9119
ULM-9120
CLM-7563
DLM-8754
DLM-9121
ULM-9122
DLM-9793-N

neat
neat
neat
neat
neat
neat
neat

1 mg, 5 mg, 10 mg
1 mg, 5 mg, 10 mg
10 mg
1 mg, 5 mg
1 mg, 5 mg, 10 mg
1 mg, 5 mg, 10 mg
1 mg

DLM-8806
DLM-9751
ULM-9129
CLM-7861-N
CLM-7861
CNLM-9564
CLM-9770-E
ULM-10005-E
CLM-3085

Vitamin B6 (pyridoxamine·2HCl) (methyl-D3, 98%)
Vitamin B6 (pyridoxamine·2HCl) (unlabeled)
Vitamin B6 (pyridoxine·HCl) (4,5-bis(hydroxymethyl)-13C4, 99%)
Vitamin B6 (pyridoxine·HCl) (5-hydroxymethyl-D2, 98%)
Vitamin B6 (pyridoxine·HCl) (methyl-D3, 98%) CP 96%
Vitamin B6 (pyridoxine·HCl) (unlabeled) CP 96%
Vitamin B6 phosphate (pyridoxal phosphate) (methyl-D3, 97%)
(mix of 5-,3-isomers) CP 97%
Vitamin B7 (biotin) (ring-6,6-D2, 98%) CP 97%
Vitamin B7 (biotin) (3’,3’,4’,4’-D4, 98%) CP 95%
Vitamin B7 (biotin) (unlabeled)
Vitamin B9 (folic acid) (glutamic acid-13C5, 99%) CP 95%
Vitamin B9 (folic acid) (glutamic acid-13C5, 95%) contains ~10% H2O
Vitamin B9 (folic acid) (glutamic acid-13C5, 99%; 15N, 98%) CP 95%
Vitamin B12 (cyanocobalamin) (13C7, 99%) CP 95%
Vitamin B12 (cyanocobalamin) (unlabeled)
Vitamin C (L-ascorbic acid) (1-13C, 99%)

neat
neat
neat
neat
neat
neat
1 µg/mL in methanol
1 µg/mL in methanol
neat

CLM-10991
CLM-7283
V-038*

Vitamin C (L-ascorbic acid) (1,2-13C2, 99%)
Vitamin C (L-ascorbic acid) (U-13C6, 98%)
Vitamin C (L-ascorbic acid) (unlabeled)

neat
neat
1 mg/mL in
acetonitrile:water (1:1)

5 mg, 10 mg, 20 mg
1 mg
1 mg, 5 mg
1 mg, 5 mg
Please inquire
1 mg, 5 mg
1 mL
1 mL
0.05 g, 0.1 g,
0.25 g, 0.5 g
Please inquire
0.05 g, 0.1 g
1 mL

Description
β-Carotene (provitamin A) (10,10’,11,11’-13C4, 99%)β-Carotene (provitamin A) (12,12’,13,13’,14,14’,15,15’,20,20’-13C10, 99%)
CP 97%
β-Carotene (provitamin A) (19,19,19,19’,19’,19’-D6, 98%)
β-Carotene (provitamin A) (10,10’,19,19,19,19’,19’,19’-D8, 97%)
1,25-Dihydroxyvitamin D2 (25,26,27-13C3, 98%) CP 95%
1,25-Dihydroxyvitamin D2 (20,21,22,26,27-13C5, 98%) CP 95%
1,25-Dihydroxyvitamin D2 (unlabeled) CP 95%
1,25-Dihydroxyvitamin D2 (unlabeled) CP 95%
1,25-Dihydroxyvitamin D2 (unlabeled) CP 95%
1,25-Dihydroxyvitamin D3 (25,26,27-13C3, 98%) CP 95%
1,25-Dihydroxyvitamin D3 (6,19,19-D3, 97%) CP 95%
1,25-Dihydroxyvitamin D3 (6,19,19-D3, 97%) CP 95%
1,25-Dihydroxyvitamin D3 (6,19,19-D3, 97%) CP 95%
1,25-Dihydroxyvitamin D3 (unlabeled) CP 95%
1,25-Dihydroxyvitamin D3 (unlabeled) CP 95%
1,25-Dihydroxyvitamin D3 (unlabeled) CP 95%
24,25-Dihydroxyvitamin D2 (unlabeled)
24,25-Dihydroxyvitamin D2 (unlabeled)
24R,25-Dihydroxyvitamin D3 (23,24,25,26,27-13C5, 98%) CP 95%
24R,25-Dihydroxyvitamin D3 (26,26,26,27,27,27-D6, 98%) CP 97%
24R,25-Dihydroxyvitamin D3 (26,26,26,27,27,27-D6, 98%) CP 97%
24R,25-Dihydroxyvitamin D3 (unlabeled) CP 97%
24R,25-Dihydroxyvitamin D3 (unlabeled) CP 97%
3-epi-25-Hydroxyvitamin D2 (22,26,27-13C3, 98%) CP 95%
3-epi-25-Hydroxyvitamin D2 (22,26,27-13C3, 98%) CP 95%
3-epi-25-Hydroxyvitamin D2 (20,21,22,26,27-13C5, 98%) CP 95%
3-epi-25-Hydroxyvitamin D2 (20,21,22,26,27-13C5, 98%) CP 95%

Concentration
neat
neat

Unit Size
Please inquire
Please inquire

neat
neat
5 µg/mL in ethanol
neat
100 µg/mL in ethanol
50 µg/mL in ethanolneat
5 µg/mL in ethanol
100 µg/mL in ethanol
50 µg/mL in ethanol
neat
100 µg/mL in ethanol
50 µg/mL in ethanol
neat
100 µg/mL in ethanol
neat
neat
100 µg/mL in ethanol
neat
100 µg/mL in ethanol
neat
50 µg/mL in ethanol
10 µg/mL in ethanol
50 µg/mL in ethanol
10 µg/mL in ethanol

Please inquire
Please inquire
1 mL
Please inquire
1 mL
1 mL
0.1 mg, 1 mg
1 mL
1 mL
1 mL
1 mg
1 mL
1 mL
0.5 mg, 1 mg
1 mL
1 mg
Please inquire
1 mL
1 mg
1 mL
1 mg
1 mL
1 mL
1 mL
1 mL

Fat Soluble
Catalog No.
CLM-6126
CLM-9641
DLM-3829
DLM-2439
CLM-12291-A
CLM-11417
ULM-9106-C
ULM-9106-B
ULM-9106
CLM-12292-A
DLM-9107-C
DLM-9107-B
DLM-9107
ULM-9108-C
ULM-9108-B
ULM-9108
ULM-9109-C
ULM-9109
CLM-11420
DLM-9404-C
DLM-9404
ULM-10610-C
ULM-10610
CLM-11418
CLM-11418
CLM-11419
CLM-11419*Products listed with an asterisk are available only in the US, Switzerland, and Australia.
Chemical purity (CP) is 98% or greater, unless otherwise specified. MPT (microbiological and pyrogen tested) may be available; please inquire.
For research use only. Not for use in diagnostic procedures.

2

tel: +1.978.749.8000 | 1.800.322.1174 (USA) | fax: +1.978.749.2768

isotope.com | Vitamins and Their Metabolites

Catalog No.

Description

Concentration

Unit Size

ULM-9110-C
ULM-9110-B
ULM-9110
CLM-11421
CLM-11422
DLM-9114-C
DLM-9114-B
DLM-9114-A
DLM-9114
DLM-10219
ULM-9115-C
ULM-9115-B
ULM-9115-A
ULM-9115
DLM-10611-C
ULM-10612-C
CLM-10266-C
DLM-9111-C
DLM-9111-B
DLM-9111
DLM-10912
ULM-9112-C
ULM-9112-B
ULM-9112
CLM-10025-C
CLM-10025
DLM-9116-C
DLM-9116-B
DLM-9116-A
DLM-9116
DLM-11423
ULM-9117-C
ULM-9117-B
ULM-9117-A
ULM-9117
DLM-7708-C
DLM-7708-B
DLM-7708
DLM-10782-C
ULM-10781-C
CLM-331
CLM-328
CLM-329
CLM-330
CLM-4343
DLM-7720
CLM-10259

3-epi-25-Hydroxyvitamin D2 (unlabeled)
3-epi-25-Hydroxyvitamin D2 (unlabeled)
3-epi-25-Hydroxyvitamin D2 (unlabeled)
25-Hydroxyvitamin D2 (22,26,27-13C3, 98%) CP 95%
25-Hydroxyvitamin D2 (20,21,22,26,27-13C5, 98%) CP 95%
25-Hydroxyvitamin D2 (6,19,19-D3, 97%)25-Hydroxyvitamin D2 (6,19,19-D3, 97%)25-Hydroxyvitamin D2 (6,19,19-D3, 97%)25-Hydroxyvitamin D2 (6,19,19-D3, 97%)25-Hydroxyvitamin D2 (26,26,26,27,27,27-D6, 96%) CP 95%
25-Hydroxyvitamin D2 (unlabeled)
25-Hydroxyvitamin D2 (unlabeled)
25-Hydroxyvitamin D2 (unlabeled)
25-Hydroxyvitamin D2 (unlabeled)
25-Hydroxyvitamin D2 sulfate, sodium salt (6,19,19-D3, 97%) CP 97%
25-Hydroxyvitamin D2 sulfate, sodium salt (unlabeled) CP 97%
3-epi-25-Hydroxyvitamin D3 (23,24,25,26,27-13C5, 99%) CP 96%
3-epi-25-Hydroxyvitamin D3 (6,19,19-D3, 98%)
3-epi-25-Hydroxyvitamin D3 (6,19,19-D3, 98%)
3-epi-25-Hydroxyvitamin D3 (6,19,19-D3, 98%)
3-epi-25-Hydroxyvitamin D3 (26,26,26,27,27,27-D6, 96%) CP 95%
3-epi-25-Hydroxyvitamin D3 (unlabeled)
3-epi-25-Hydroxyvitamin D3 (unlabeled)
3-epi-25-Hydroxyvitamin D3 (unlabeled)
25-Hydroxyvitamin D3 (23,24,25,26,27-13C5, 99%) CP 95%
25-Hydroxyvitamin D3 (23,24,25,26,27-13C5, 99%) CP 95%
25-Hydroxyvitamin D3 (6,19,19-D3, 97%)25-Hydroxyvitamin D3 (6,19,19-D3, 97%)25-Hydroxyvitamin D3 (6,19,19-D3, 97%)25-Hydroxyvitamin D3 (6,19,19-D3, 97%)25-Hydroxyvitamin D3 (26,26,26,27,27,27-D6, 98%) CP 95%
25-Hydroxyvitamin D3 (unlabeled)
25-Hydroxyvitamin D3 (unlabeled)
25-Hydroxyvitamin D3 (unlabeled)
25-Hydroxyvitamin D3 (unlabeled)
25-Hydroxyvitamin D3 monohydrate (26,26,26,27,27,27-D6, 98%) CP 97%
25-Hydroxyvitamin D3 monohydrate (26,26,26,27,27,27-D6, 98%) CP 97%
25-Hydroxyvitamin D3 monohydrate (26,26,26,27,27,27-D6, 98%) CP 97%
25-Hydroxyvitamin D3 sulfate, sodium salt (6,19,19-D3, 97%) CP 97%
25-Hydroxyvitamin D3 sulfate, sodium salt (unlabeled) CP 97%
Vitamin A (retinoic acid) (10-13C, 99%)
Vitamin A (retinoic acid) (11-13C, 98%)
Vitamin A (retinoic acid) (14-13C, 99%)
Vitamin A (retinoic acid) (15-13C, 99%)
Vitamin A (retinoic acid) (10,11,14,15-13C4, 99%)
Vitamin A (retinoic acid) (19,19,19,20,20,20-D6, 96%)
Vitamin A (retinol) (12,13,14,20-13C4, 99%)
(50 ppm butylated hydroxytoluene – “BHT”) CP 95%
Vitamin A (retinol) (10,19,19,19-D4, 96%)
(50 ppm butylated hydroxytoluene – “BHT”) CP 95%
Vitamin A (retinol) (19,19,19,20,20,20-D6, 96%)
(50 ppm butylated hydroxytoluene – “BHT”) CP 95%
Vitamin A (retinol) (10,14,19,19,19,20,20,20-D8, 90%)
(50 ppm butylated hydroxytoluene – “BHT”) CP 95%

100 µg/mL in ethanol
50 µg/mL in ethanol
neat
neat
neat
100 µg/mL in ethanol
50 µg/mL in ethanol
5 µg/mL in ethanol
neat
neat
100 µg/mL in ethanol
50 µg/mL in ethanol
5 µg/mL in ethanol
neat
100 µg/mL in ethanol
100 µg/mL in ethanol
100 µg/mL in ethanol
100 µg/mL in ethanol
50 µg/mL in ethanol
neat
neat
100 µg/mL in ethanol
50 µg/mL in ethanol
neat
100 µg/mL in ethanol
neat
100 µg/mL in ethanol
50 µg/mL in ethanol
5 µg/mL in ethanol
neat
neat
100 µg/mL in ethanol
50 µg/mL in ethanol
5 µg/mL in ethanol
neat
100 µg/mL in ethanol
50 µg/mL in ethanol
neat
100 µg/mL in ethanol
100 µg/mL in ethanol
neat
neat
neat
neat
neat
neat
neat

1 mL
1 mL
1 mg
Please inquire
Please inquire
1 mL
1 mL
1 mL
1 mg
Please inquire
1 mL
1 mL
1 mL
1 mg
1 mL
1 mL
1 mL
1 mL
1 mL
1 mg
Please inquire
1 mL
1 mL
1 mg
1 mL
1 mg
1 mL
1 mL
1 mL
1 mg, 5 mg
Please inquire
1 mL
1 mL
1 mL
5 mg
1 mL
1 mL
1 mg
Please inquire
Please inquire
Please inquire
Please inquire
Please inquire
Please inquire
Please inquire
1 mg
Please inquireneat

1 mg, 5 mg

neat

1 mg, 5 mg, 10 mg

neat

Please inquire

DLM-9305
DLM-8113
DLM-9306

Chemical purity (CP) is 98% or greater, unless otherwise specified. MPT (microbiological and pyrogen tested) may be available; please inquire.
For research use only. Not for use in diagnostic procedures.

cilsales@isotope.com | intlsales@isotope.com | isotope.com 3

| Vitamins and Their Metabolites

Cambridge Isotope Laboratories, Inc.

Catalog No.

Description

Concentration

Unit Size

CLM-8870
CLM-4831
CLM-7277
DLM-2244
DLM-3828
DLM-4203

Vitamin A acetate (retinol acetate) (12,13,14,20-13C4, 99%)
Vitamin A acetate (retinol acetate) (8,9,10,12,13,14,19,20-13C8, 99%)
Vitamin A acetate (retinol acetate) (8,9,10,11,12,13,14,15,19,20-13C10, 99%)
Vitamin A acetate (retinol acetate) (10,19,19,19-D4, 96%) (3-4% cis)
Vitamin A acetate (retinol acetate) (19,19,19,20,20,20-D6, 96%) (3-4% cis)
Vitamin A acetate (retinol acetate) (10,14,19,19,19,20,20,20-D8, 90%)
(3-4% cis)
Vitamin A aldehyde (retinal) (10-13C, 99%)
Vitamin A aldehyde (retinal) (11-13C, 99%)
Vitamin A aldehyde (retinal) (14-13C, 99%)
Vitamin A aldehyde (retinal) (15-13C, 98%)
Vitamin A aldehyde (retinal) (12,13,14,20-13C4, 96%)
Vitamin A aldehyde (retinal) (19,19,19,20,20,20-D6, 96%)
Vitamin A palmitate (retinyl palmitate) (12,13,20-13C3, 98%)
(all trans, <4% cis, 50 ppm butylated hydroxytoluene – “BHT”)
Vitamin A palmitate (retinyl palmitate)(8,9,10,11,12,13,14,15,19,20-13C10, 99%)
(all trans, <4% cis, 50 ppm butylated hydroxytoluene – “BHT”)
Vitamin A palmitate (retinyl palmitate) (10,19,19,19-D4, 96%)
(all trans, <4% cis, 50 ppm butylated hydroxytoluene – “BHT”)
Vitamin A palmitate (retinyl palmitate) (19,19,19,20,20,20-D6, 97%)
(all trans, <4% cis, 50 ppm butylated hydroxytoluene – “BHT”)
Vitamin D2 (ergocalciferol) (6,19,19-D3, 97%)
Vitamin D2 (ergocalciferol) (6,19,19-D3, 97%)
Vitamin D2 (ergocalciferol) (6,19,19-D3, 97%)
Vitamin D2 (ergocalciferol) (unlabeled)
Vitamin D2 (ergocalciferol) (unlabeled)
Vitamin D2 (ergocalciferol) (unlabeled)
Vitamin D2 sulfate, sodium salt (ergocalciferol sulfate)(6,19,19-D3, 98%) CP 97%
Vitamin D2 sulfate, sodium salt (ergocalciferol sulfate) (unlabeled) CP 97%
Vitamin D3 (cholecalciferol) (23,24-13C2, 99%) CP 90%
Vitamin D3 (cholecalciferol) (25,26,26-13C3, 98%) CP 97%
Vitamin D3 (cholecalciferol) (23,24,25,26,26-13C5, 98%) CP 97%
Vitamin D3 (cholecalciferol) (23,24,25,26,26-13C5, 98%) CP 97%
Vitamin D3 (cholecalciferol) (6,19,19-D3, 97%) CP 97%
Vitamin D3 (cholecalciferol) (6,19,19-D3, 97%) CP 97%
Vitamin D3 (cholecalciferol) (26,26,26,27,27,27-D6, 98%) CP 95%
Vitamin D3 (cholecalciferol) (26,26,26,27,27,27-D6, 98%) CP 95%
Vitamin D3 (cholecalciferol) (unlabeled)
Vitamin D3 (cholecalciferol) (unlabeled)
Vitamin D3 (cholecalciferol) (unlabeled)
Vitamin D3 sulfate, sodium salt (cholecalciferol sulfate)(6,19,19-D3, 98%) CP 97%
Vitamin D3 sulfate, sodium salt (cholecalciferol sulfate) (unlabeled) CP 97%
Vitamin E (DL-α-tocopherol) (trimethylphenyl-13C3, 99%) CP 96%
Vitamin E (α-tocopherol) (trimethyl-13C3 phenyl,, 99%) CP 96%
Vitamin E (α-tocopherol) (phenyl-13C6, 99%) CP 96%
Vitamin E (α-tocopherol) (trimethylphenyl-13C9, 99%) CP 96%
Vitamin E (α-tocopherol) (5-methyl-D3, 7-methyl-D3, 98%)
Vitamin E (α-tocopherol) (dimethyl-13C2, 99%; dimethyl-D6, 98%)
Vitamin E (α-tocopherol) (unlabeled)
Vitamin E (α-tocopherol) (unlabeled) CP 96%

neat
neat
neat
neat
neat
neat

Please inquire
Please inquire
Please inquire
Please inquire
Please inquire
Please inquire

neat
neat
neat
neat
neat
neat
neat

Please inquire
Please inquire
Please inquire
Please inquire
Please inquire
Please inquire
Please inquire

neat

Please inquireneat

1 mg, 5 mg

neat

Please inquire

1000 µg/mL in ethanol
100 µg/mL in ethanol
neat1000 µg/mL in ethanol
100 µg/mL in ethanol
neat
100 µg/mL in ethanol

1 mL
1 mL
1 mg
1 mL
1 mL
1 mg, 5 mg, 10 mg
1 mL

100 µg/mL in ethanol
neat
100 µg/mL in ethanol
1000 µg/mL in ethanol
100 µg/mL in ethanol
1000 µg/mL in ethanol
100 µg/mL in ethanol
1 mg/mL in ethanol
100 µg/mL in ethanol
1000 µg/mL in ethanol
100 µg/mL in ethanol
neat
100 µg/mL in ethanol

1 mL
Please inquire
1 mL
1 mL
1 mL
1 mL
1 mL
1 mL
1 mL
1 mL
1 mL
1 mg, 5 mg, 10 mg
1 mL

100 µg/mL in ethanol
neat
neat
neat
neat
neat
100 µg/mL in methanol
100 µg/mL in methanol
neat

1 mL
1 mg
1 mg
1 mg
1 mg
2 mg, 5 mg, 10 mg
1.2 mL
1.2 mL
1 mg, 5 mg, 10 mg

CLM-320
CLM-325
CLM-326
CLM-327
CLM-10772
DLM-7719
CLM-9395
CLM-10838

DLM-4902
DLM-9309
DLM-8985-D
DLM-8985-C
DLM-8985
ULM-9124-D
ULM-9124-C
ULM-9124
DLM-10478-C
ULM-10477-C
CLM-7850
CLM-10469-C
CLM-10470-D
CLM-10470-C
DLM-8853-D
DLM-8853-C
DLM-10749-D
DLM-10749-C
ULM-9125-D
ULM-9125-C
ULM-9125
DLM-10475-C
ULM-10474-C
CLM-10274
CLM-10273
CLM-10275
CLM-10276
DLM-9126
CDLM-11053-1.2
ULM-9127-1.2
ULM-9127

Chemical purity (CP) is 98% or greater, unless otherwise specified. MPT (microbiological and pyrogen tested) may be available; please inquire.
For research use only. Not for use in diagnostic procedures.

4

tel: +1.978.749.8000 | 1.800.322.1174 (USA) | fax: +1.978.749.2768

isotope.com | Vitamins and Their Metabolites

Catalog No.

Description

Concentration

Unit Size

DLM-8847
CDLM-11054-1.2

Vitamin E acetate (α-tocopherol acetate) (acetyl-D3, 98%)
Vitamin E acetate (α-tocopherol acetate)(dimethyl-13C2, acetyl-13C2, 99%; dimethyl-D6, 98%)
Vitamin E acetate (α-tocopherol acetate) (unlabeled)
Vitamin E succinate (tocopherol succinate) (5-methyl-D3, 7-methyl-D3, 98%)
CP 95%
Vitamin K1 (phylloquinone) (4α,5,6,7,8,8α-13C6, 99%)
Vitamin K1 (phylloquinone) (ring-D4, 98%)
Vitamin K1 (phylloquinone) (D7, 99%) CP 97%
Vitamin K1 (phylloquinone) (unlabeled) CP 97%
Vitamin K2 (menaquinone MK-4) (4',5,6,7,8,8'-13C6, 99%) CP 95%
Vitamin K2 (menaquinone MK-4) (5,6,7,8-D4, 2-methyl-D3, 98%) CP 95%
Vitamin K2 (menaquinone MK-7) (4',5,6,7,8,8'-13C6, 99%) CP 95%
Vitamin K2 (menaquinone MK-7) (5,6,7,8-D4, 2-methyl-D3, 98%) CP 95%
Vitamin K2 (menaquinone MK-9) (4',5,6,7,8,8'-13C6, 99%) CP 95%
Vitamin K2 (menaquinone MK-9) (5,6,7,8-D4, 2-methyl-D3, 98%) CP 95%
Vitamin K2 2,3-epoxide (menaquinone-4 2,3-epoxide)(5,6,7,8-D4, 2-methyl-D3, 98%) CP 95%
Vitamin K2 2,3-epoxide (menaquinone-4 2,3-epoxide) (unlabeled) CP 95%
Vitamin K3 (menadione) (D8, 98%) CP 97%
Vitamin K3 (menadione) (unlabeled) CP 97%

neat
100 µg/mL in methanol

Please inquire
1.2 mL100 µg/mL in methanol
neat

1.2 mL
1 mg, 2 mg, 10 mg

neat
neat
neat
neat
neat
neat
neat
neat
neat
neat
neat

1 mg
1 mg
1 mg, 5 mg, 10 mg
1 mg, 5 mg, 10 mg
1 mg
1 mg
1 mg
1 mg
1 mg
1 mg
1 mg

neat
neat
neat

1 mg
10 mg, 0.05 g
1 mg, 5 mg, 10 mg

ULM-11055-1.2
DLM-11047
CLM-9566
DLM-7702
DLM-9130
ULM-9131
CLM-10376
DLM-10379
CLM-10377
DLM-10380
CLM-10378
DLM-10381
DLM-10382
ULM-10383
DLM-9132
ULM-9133

Example References
Huang, J.; Cui, L.; Natarajan, M.; et al. 2022. The ratio of nicotinic acid to nicotinamide
as a microbial biomarker for assessing cell therapy product sterility. Mol Ther Methods
Clin Dev, 25, 410-424.

Zhang, M.; Wu, Y.; Wang, F.; et al. 2019. Improving long-term stability of retinol indried blood spots and quantification of its levels via a novel LC-MS/MS method.
Anal Bioanal Chem, 411(30), 8073-8080.

Marshall, J.; Zhang, H.; Khazaei, H.; et al. 2021. Targeted quantification of B vitamins
using ultra-performance liquid chromatography-selected reaction monitoring mass
spectrometry in faba bean seeds. J Food Compost Anal, 5, 103687-103697.

Gill, B.D.; Saldo, S.; Wood, J.E.; et al. 2018. A rapid method for the determinationof biotin and folic acid in liquid milk, milk powders, infant formula, and milk-based
nutritional products by liquid chromatography-tandem mass spectrometry.
J AOAC Int, 101(5), 1578-1583.

Zhang, H.: De Silva, D.; Dissanayaka, D.; et al. 2021. Validated B vitamin quantificationfrom lentils by selected reaction monitoring mass spectrometry. Food Chem, 359,
129810-12918.
Kazuki, T.; Ayuko, M.; Yoshinori, I.; et al. 2020. Comparison of two reducing agents
dithiothreitol and tris(3-hydroxypropyl)phosphine for in vitro kinetic assay of vitamin K
epoxide reductase. Vet Anim Sci, 9, 100095-100099.
Lopez-Teros, V.; Ford, J.L.; Green, M.H.; et al. 2020. The “super-child” approach
is applied to estimate retinol kinetics and vitamin a total body stores in Mexicanpreschoolers. J Nutr, 150(6), 1644-1651.
Shetty, S.A.; Young, M.F.; Taneja, S.; et al. 2020. Quantification of B-vitamins fromdifferent fresh milk samples using ultra-high performance liquid chromatography
mass spectrometry/selected reaction monitoring methods. J Chromatogr A,1609,
460452-460487.

Oberson, J.M.; Campos-Giménez, E.; Rivière, J.; et al. 2018. Application of supercriticalfluid chromatography coupled to mass spectrometry to the determination of fat-soluble
vitamins in selected food products. J Chromatogr B Analyt Technol Biomed Life Sci,
1086, 118-129.
Kumar, A.; Singh, M.P.; Rungta, T.; et al. 2018. Ocular pharmacokinetics of
25-hydroxyvitamin D3 after weekly supplementation in rabbits using ultra performanceliquid chromatography-tandem mass spectrometer. Eur J Drug Metab Pharmacokinet,
43(5), 607-613.
Paalme, T.; Vilbaste, A.; Kevvai, K.; et al. 2017. Assessment of bioavailable B vitamincontent in food using in vitro digestibility assay and LC-MS SIDA. Anal Bioanal Chem,
409(27), 6475-6484.

cilsales@isotope.com | intlsales@isotope.com | isotope.com 5

| Vitamins and Their Metabolites

Cambridge Isotope Laboratories, Inc.

Please visit isotope.com for a complete list of isotope-labeled compounds.

Research products are distributed and sold worldwide via our extensive network.
CIL’s distributor listing is available at isotope.com.

To request a quotation or place an order:
North America: 1.800.322.1174 | 1.978.749.8000 | cilsales@isotope.com
International: +1.978.749.8000 | intlsales@isotope.com
Fax: 1.978.749.2768 | isotope.com

Cambridge Isotope Laboratories, Inc. 3 Highwood Drive, Tewksbury, MA 01876 USA
North America: 1.800.322.1174 | International: +1.978.749.8000 | fax: +1.978.749.2768 | isotope.com

MET_RSCH_VITAMINS (5/30/23)
Supersedes all previously published literature