Table:
Monitor ion (m/z)
Chemical name	CAS No.	Purity (%)	Supplier1	Retention time (min)	Quantifying ion	Qualifying ion
Standard
1,3-Butadiene2	106-99-0	>95	A	6.1	54	39, 53
Acrylonitrile2	107-13-1	>99.8	B	10.7	53	52
Benzene	71-43-2	>99	C	13.2	78	52
Methyl isobutyrate	547-63-7	>95	D	13.6	43	71, 41
Methyl methacrylate	80-62-6	>99.8	E	14.1	69	41
1-Octene	111-66-0	>95	D	14.9	55	70
Toluene	108-88-3	>99.5	F	15.0	91	92
4-Vinyl-l-cyclohexene	100-40-3	>95	D	15.8	79	54, 91
Ethylbenzene	100-41-4	>99	D	16.3	91	106
p-Xylene	106-42-3	>98	D	16.4	91	106
Styrene	100-42-5	>99	D	16.8	104	78
Isopropylbenzene	98-82-8	>98	D	17.0	105	120, 91
Propylbenzene	103-65-1	>97	D	17.4	91	102, 105
α-Methylstyrene	98-83-9	>98	D	17.7	118	117, 91
Internal standard
1,2-Butadiene2	590-19-2	>95	A	7.2	54	53, 39
Isobutyronitrile	78-67-1	>99	E	13.1	68	42
p-Diethylbenzene	105-05-5	>99	D	18.3	105	117, 120

Convert the illustration into Markdown format.

|  |  |  |  |  | <COLSPAN=2> Monitor ion (m/z) | 
 | Chemical name | CAS No. | Purity (%) | Supplier1 | Retention time (min) | Quantifying ion | Qualifying ion | 
 | --- | --- | --- | --- | --- | --- | --- | 
 | <COLSPAN=7> Standard | 
 | 1,3-Butadiene2 | 106-99-0 | >95 | A | 6.1 | 54 | 39, 53 | 
 | Acrylonitrile2 | 107-13-1 | >99.8 | B | 10.7 | 53 | 52 | 
 | Benzene | 71-43-2 | >99 | C | 13.2 | 78 | 52 | 
 | Methyl isobutyrate | 547-63-7 | >95 | D | 13.6 | 43 | 71, 41 | 
 | Methyl methacrylate | 80-62-6 | >99.8 | E | 14.1 | 69 | 41 | 
 | 1-Octene | 111-66-0 | >95 | D | 14.9 | 55 | 70 | 
 | Toluene | 108-88-3 | >99.5 | F | 15.0 | 91 | 92 | 
 | 4-Vinyl-l-cyclohexene | 100-40-3 | >95 | D | 15.8 | 79 | 54, 91 | 
 | Ethylbenzene | 100-41-4 | >99 | D | 16.3 | 91 | 106 | 
 | p-Xylene | 106-42-3 | >98 | D | 16.4 | 91 | 106 | 
 | Styrene | 100-42-5 | >99 | D | 16.8 | 104 | 78 | 
 | Isopropylbenzene | 98-82-8 | >98 | D | 17.0 | 105 | 120, 91 | 
 | Propylbenzene | 103-65-1 | >97 | D | 17.4 | 91 | 102, 105 | 
 | α-Methylstyrene | 98-83-9 | >98 | D | 17.7 | 118 | 117, 91 | 
 | <COLSPAN=7> Internal standard | 
 | 1,2-Butadiene2 | 590-19-2 | >95 | A | 7.2 | 54 | 53, 39 | 
 | Isobutyronitrile | 78-67-1 | >99 | E | 13.1 | 68 | 42 | 
 | p-Diethylbenzene | 105-05-5 | >99 | D | 18.3 | 105 | 117, 120 |