rackarock
An explosive consisting of potassium chlorate and mononitrobenzene.

radate
Any oxyanion of radium; any salt containing such an anion.

radates
plural of radate

radeon
Obsolete form of radon (“radon-222”); an isotope of radon.

radialene
Any of a class of alicyclic organic compounds containing n cross-conjugated exocyclic double bonds.

radialenes
plural of radialene

radioactinide
Any radioactive isotope of an actinide

radioactinides
plural of radioactinide

radioactinium
The radioactive isotope of actinium, 22789Ac, having a half-life of 21.7 years

radiobismuth
Any radioactive isotope of bismuth, especially when used in metabolic studies

radiocarbon
A radioactive isotope of carbon, especially 146C.

radiocarbons
plural of radiocarbon

radiogold
The radioactive isotope of gold, 19879Au, used in medical irradiation and in diagnosis

radiogolds
plural of radiogold

radiohalogen
Any radioactive isotope of a halogen

radiohalogens
plural of radiohalogen

radiohydrogen
radioactive hydrogen

radioiodine
The radioactive isotope of iodine, 13153I, having a half-life of 8 days; used as a medical tracer

radioiodines
plural of radioiodine

radioiron
A radioactive isotope of iron.

radioisotope
A radioactive isotope of an element.

radioisotopes
plural of radioisotope

radiolanthanide
Any radioactive isotope of a lanthanide

radiolanthanides
plural of radiolanthanide

radiolead
radioactive lead (especially when used as a tracer)

radiolyse
A product which is created through irradiation of substances.

radiolyses
plural of radiolyse

radionitrogen
radioactive nitrogen (especially when used as a tracer)

radiooxygen
radioactive oxygen

radiostrontium
any radioactive isotope of strontium, especially 9038Sr

radiostrontiums
plural of radiostrontium

radiothorium
The radioactive isotope thorium-228

radonate
Any oxyanion of radon; any salt containing such an anion.

radonates
plural of radonate

ramnogalacturonan
Misspelling of rhamnogalacturonan.

ranachrome
The fluorescent pigment 6-hydroxymethylpterin found in frog skin

ranaconitine
A particular diterpene alkaloid isolated from plants of the genus Aconitum.

ranelate
Any salt or ester of ranelic acid.

ranelates
plural of ranelate

ranunculin
An unstable glucoside found in plants of the buttercup family (Ranunculaceae). On maceration, it is enzymatically broken down into glucose and the toxin protoanemonin.

rathbunioside
A particular steroid glycoside.

raucaffrinoline
An indole alkaloid isolated from the leaves of various plants in the Rauvolfia family, such as Rauvolfia yunnanensis.

recarbonizer
A recarbonizing agent.

recurvoside
A particular steroid glycoside.

reformate
The product of a hydrocarbon reforming process; an intermediate in the production of fuels such as gasoline.

reformates
plural of reformate

regularoside
A particular steroid glycoside.

remrefidine
Alternative form of roemrefidine.

renghol
A poisonous organic compound later found to be identical with urushiol I.

reptoside
An iridoid glucoside found in Ajuga reptans.

resinoside
The glycoside of a resin

resinosides
plural of resinoside

resistotype
A type of an organism that is resistant to attack (by pesticide etc)

resistotypes
plural of resistotype

resmethrin
A pyrethroid insecticide with many uses, including control of the adult mosquito population.

resorcin
Synonym of resorcinol.

resorcine
Alternative form of resorcin.

resorcinol
The diphenol meta-dihydroxy benzene, used as a mild antiseptic and in many industrial applications; isomeric with catechol and hydroquinone.

resorcinols
plural of resorcinol

resorcins
plural of resorcin

resveratroloside
A glycoside of resveratrol

retene
A hydrocarbon, polymeric with benzene, that is extracted from pine tar and also found in certain fossil resins.

retenes
plural of retene

reticulatoside
A particular steroid glycoside.

retinamide
Any amide of retinoic acid.

retinamides
plural of retinamide

retinene
Either of two carotenoid pigments found in the retina and produced from vitamin A; retinal
Either of two carotenoid pigments found in the retina and produced from vitamin A; retinal

retinenes
plural of retinene

retinoate
Any salt or ester of retinoic acid.

retinoates
plural of retinoate

retinol
A fat-soluble carotenoid vitamin (vitamin A), present in fish oils and green vegetables, essential to normal vision and to bone development.

retinols
plural of retinol

retinoyl
A univalent radical formally derived from retinoic acid by removal of the hydroxyl group.

retinoyls
plural of retinoyl

retinyl
The univalent radical derived from retinol

retinylamine
A diterpene amine related to retinol

retinylidene
The divalent radical formally derived from retinal by loss of an oxygen atom

retinyls
plural of retinyl

retistene
A white crystalline hydrocarbon produced indirectly from retene.

retroamide
An isomer of an existing amide in which the main substituent is attached to the NH group instead of the CO group of the -CO-NH- group

retroamides
plural of retroamide

retronecine
A pyrrolizidine alkaloid found in the common groundsel and comfrey.

retrorsine
A cytotoxic pyrrolizidine alkaloid, 12,18-dihydroxysenecionan-11,16-dione, isolated from various plants

rhabarberone
Synonym of aloe-emodin.

rhamnin
A pigment found in the berries of Rhamnus infectoria.

rhamnitol
The deoxy sugar alcohol 1-deoxy-mannitol

rhamnocitrin
The cyclic ketone 3,5-dihydroxy-2-(4-hydroxyphenyl)-7-methoxychromen-4-one

rhamnogalactan
A polysaccharide composed of rhamnose and galactose uits

rhamnogalactans
plural of rhamnogalactan

rhamnogalacturonan
A polysaccharide, consisting mostly of rhamnose and galacturonic acid, that is found in plant cell walls

rhamnogalacturonans
plural of rhamnogalacturonan

rhamnogalacturonate
Any salt or ester of rhamnogalacturonic acid

rhamnogalacturonates
plural of rhamnogalacturonate

rhamnogalacturonyl
A univalent radical derived from rhamnogalacturonic acid

rhamnoglucoside
A glycoside containing rhamnose and glucose units

rhamnoglucosides
plural of rhamnoglucoside

rhamnoglycoside
A glycoside containing rhamnose and another sugar units

rhamnoglycosides
plural of rhamnoglycoside

rhamnomannan
A mannan derived from rhamnose

rhamnomannans
plural of rhamnomannan

rhamnopolysaccharide
A polysaccharide based on rhamnose

rhamnopolysaccharides
plural of rhamnopolysaccharide

rhamnoside
Any glycoside of rhamnose

rhamnosides
plural of rhamnoside

rhamnosyl
A univalent radical derived from rhamnose.

rhamnosylglucoside
Any glucoside that also contains rhamnosyl residues

rhamnosylglucosides
plural of rhamnosylglucoside

rhamnosylglycoside
Any glycoside that contains rhamnosyl residues

rhamnosylglycosides
plural of rhamnosylglycoside

rhamnosyls
plural of rhamnosyl

rhaponticin
A glucoside of rhapontigenin present in rhubarb rhizomes

rhazinicine
A particular pyrrole alkaloid

rhein
An anthraquinone found in rhubarb.

rhenate
The anion ReO₄⁻; any salt containing this ion.

rhenates
plural of rhenate

rhizochalin
A sphingolipid-like compound found in the sponge Rhizochalina incrustata.

rhodaminyl
A univalent radical derived from rhodamine

rhodammonium
A cation, Rh₂(NH₃)₁₀⁶⁺, containing rhodium and ammonia.

rhodanate
A salt of rhodanic acid; a sulphocyanate.

rhodanates
plural of rhodanate

rhodate
Any oxyanion of rhodium RhO₃²⁻ or RhO₂⁻; any salt containing such an anion

rhodates
plural of rhodate

rhodexin
A particular steroid glycoside.

rhodexoside
A particular steroid glycoside.

rhodinal
Synonym of citronellal.

rhodinol
The chemical compound 3,7-dimethyloct-7-en-1-ol, used in perfumery.

rhodizonate
Any salt or ester of rhodizonic acid.

rhodizonates
plural of rhodizonate

rhodocenium
The unipositive cation of rhodocene.

rhododendrol
The phenol 4-[(3R)-3-hydroxybutyl]phenol used in some skin-lightening products

rhodogen
A substance found in beets that turns red on exposure to oxygen.