CAS Number Index

A CAS Registry Number,also referred to as CASRN or CAS Number, is a unique numerical identifier assigned by the Chemical Abstracts Service (CAS) to every chemical substance described in the open scientific literature (currently including all substances described from 1957 through the present, plus some substances from the early or mid 1900s), including organic and inorganiccompounds, minerals, isotopes, alloys and nonstructurable materials (UVCBs, of unknown, variable composition, or biological origin).The registry maintained by CAS is an authoritative collection of disclosed chemical substance information. It currently identifies more than 144 million unique organic and inorganic substances and 67 million protein and DNA sequences,plus additional information about each substance. It is updated with around 15,000 additional new substances daily.(information coming from wikipedia.org)

Name CAS Number
5-(2-Amino-4-chloro-5-sulfamoylphenyl)-1H-tetrazole 82212-14-4
N-octanoyl benzotriazole 58068-80-7
3-chloro-4-propan-2-ylsulfonylthiophene-2-carboxylic acid 175202-26-3
2-(3-Chloropropoxy)-1-methoxy-4-nitrobenzene 92878-95-0
4,6-Pyrimidinedicarboxylic acid 16490-02-1
6-amino-5-nitro-1H-pyrimidin-2-one 69099-99-6
5-(p-Toluenesulfonate)-2,3-O-isopropylidene-2-C-methyl-D-ribonic-γ-lactone 109715-12-0
Methyl 5-bromo-1H-1,2,4-triazole-3-carboxylate 704911-47-7
4-Methyl-2H-isoquinolin-1-one 77077-83-9
6-Methyl-2,4(1H,3H)-quinazolinedione 62484-16-6
5-Amino[1,3]thiazolo[4,5-d]pyrimidin-2(3H)-one 848691-22-5
2-ethylsulfanyl-5-methyl-1H-pyrimidin-6-one 13480-95-0
2-ethoxy-1H-pyrimidin-6-one 25957-58-8
5-O-Methanesulfonate-2,3-O-isopropylidene-2-C-methyl-D-ribonic-γ-lactone 908128-94-9
4-Aminoquinazolin-2-ol 50440-88-5
5-hydroxy-3-[(4-nitrophenyl)methyl]imidazole-4-carboxamide 82439-87-0
6-methyl-1,6-naphthyridin-5-one 19693-54-0
N-cyclopentyl-7H-purin-6-amine 103626-36-4
2-benzyl-1,2,3,4-tetrahydro-benzo[b][1,6]naphthyridine-10-carboxylic acid 99117-21-2
5-(4-fluoroanilino)-3H-1,3,4-thiadiazole-2-thione 14731-24-9
4-[(4-ethoxyphenyl)sulfamoyl]benzoic acid 18813-87-1
2-(2-fluorophenyl)sulfanylacetic acid 705-02-2
3-(4-chlorophenyl)-2-sulfanylidene-1H-quinazolin-4-one 1028-40-6
4-chloro-2-pyridin-3-yl-5,6,7,8-tetrahydro-[1]benzothiolo[2,3-d]pyrimidine 128277-24-7
2-chloro-N-(cyclohexen-1-yl)-N-ethylacetamide 21417-18-5
N-(5-chloro-2-methylphenyl)-3-oxobutanamide 25233-50-5
3-(2,3-dimethylindol-1-yl)propan-1-amine 39971-86-3
7-Amino-4-methyl-2H-1,4-benzoxazin-3(4H)-one 141068-81-7
p-aminophenylphosphocholine 102185-28-4
benzotript 39544-74-6
sodium,3-chlorobenzoate 17264-88-9
2-ethoxyoxolane 13436-46-9
3beta-hydroxy-5-cholestene 3-[6-(1-pyrene)hexanoate] 96886-70-3
2-phenyl-4,7-dihydro-1,3-dioxepine 2568-24-3
N,N-dimethylformamide,sulfur trioxide 29584-42-7
ethyl 2-(piperidine-4-carboxamido)acetate hydrochloride 82827-44-9
1-chloro-4-(3-iodopropoxy)benzene 119795-57-2
1-[2-nitro-4-(trifluoromethyl)phenyl]pyrrole 136773-58-5
2-(4-bromo-3,5-dimethylpyrazol-1-yl)ethanethioamide 175202-68-3
3,4-Dibromo-1H-pyrrolo[2,3-b]pyridine 1000340-33-9
7-nitro-1,5-dihydropyrrolo[3,2-d]pyrimidin-4-one 93587-26-9
3-amino-6-iodopyrazine-2-carboxylic acid 875781-48-9
1-(Benzyloxy)-3-ethynylbenzene 128133-59-5
Stigmastanol 83-45-4
11-Oxotestosterone 564-35-2
β-Estradiol 3-(β-D-glucuronide) sodium salt 14982-12-8
2β-Hydroxy Testosterone 10390-14-4
2,4-Di-tert-butyl-6-methylphenol 616-55-7
2,4-Bis(α,α-diMethylbenzyl)phenol 2772-45-4
2,6-Di-tert-butyl-4-nonylphenol 4306-88-1