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
2-[(4,6-dimethylquinazolin-2-yl)amino]-7-methyl-7,8-dihydroquinazolin-5(6H)-one 925009-46-7
Methyl 2-bromo-2-phenylbutanoate 202586-59-2
N-[2-Hydroxy-2-[4-(phenylmethoxy)phenyl]propyl]benzenesulfonamide 114962-64-0
(3-(4-Methoxyphenyl)-5-methylisoxazol-4-yl)methanol 495417-36-2
10-methoxy-2,2-dimethyl-8,9-dihydro-2H-cyclopenta[c]pyrano[2,3-h]chromen-6(7H)-one 855779-25-8
Ethyl 2-chloro-4-methyl-1H-imidazole-5-carboxylate 128095-76-1
4-bromo-N-(1-methoxypropan-2-yl)-1H-pyrrole-2-carboxamide 1061603-29-9
7-Nitro-5-(trifluoromethyl)benzo[d]thiazol-2(3H)-one 37681-12-2
3-(4-Chlorophenyl)-4-methoxy-4-oxobutanoic Acid 67031-21-4
4-fluoro-N-(trifluoroacetyl)anthranilic acid 128992-67-6
Carbonofluoridothioic acid, S-phenyl ester 2286-39-7
Methyl 4-(2-{[6-(thiophen-2-YL)pyridazin-3-YL]sulfanyl}acetamido)benzoate 872723-79-0
(1E)-1-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)hexa-1,5-dien-3-ol 167896-50-6
N-(4-(perfluorobutoxy)phenyl)nicotinamide hydrochloride 62315-22-4
Methyl (S)-2-amino-3-(2,4-dimethoxyphenyl)propanoate 174906-28-6
Methyl 2-chloro-3,3-dimethyloxirane-2-carboxylate 129015-33-4
Tert.-butyl 2-chloro-2,3-epoxy-3-methyl-butanoate 49653-48-7
1,3,5-Trifluoro-2-(trifluoromethoxy)benzene 1404195-19-2
(E)-1,1'-[2-(2,4-Difluorophenyl)-1-propene-1,3-diyl]bis-1H-1,2,4-triazole 163921-61-7
2-(5,7-dioxo-5,7-dihydro-6H-pyrrolo[3,4-b]pyrazin-6-yl)-4-methylpentanoic acid 126452-64-0
Methyl 2-amino-3-fluoropropanoate 745759-66-4
8-(2-Furylmethyl)-1-methyl-1,3,5-trihydroimidazolidino[1,2-h]purine-2,4-dione 887883-17-2
N-(5-methyl-1,3,4-thiadiazol-2-yl)-4,5,6,7-tetrahydro-1H-benzo[d]imidazole-5-carboxamide 132907-69-8
3,4-Dimethoxy-N-(2-methoxy-1-methylethyl)-5-(2-propen-1-yl)benzamide 1050620-65-9
Stigmast-24(28)-en-3-one, (5alpha)- 126576-88-3
N-cycloheptyl-3-(phenylsulfonyl)thieno[2,3-e][1,2,3]triazolo[1,5-a]pyrimidin-5-amine 892730-15-3
2-(Anthracen-9-yl)propanoic acid 94540-78-0
N-(4-ethylphenyl)-2-((1-(2-oxo-2-(pyrrolidin-1-yl)ethyl)-1H-indol-3-yl)thio)acetamide 877658-74-7
N-benzylidene-2,2,2-trifluoroacetamide 69962-31-8
3-(Chloromethyl)-5-methoxy-1,2,4-thiadiazole 32577-84-7
Benzyl (3R,5S)-3,5-bis(hydroxymethyl)piperidine-1-carboxylate 206554-33-8
2,3,5-trimethyl-7H-furo[3,2-g]chromene-7-thione 929861-82-5
N-(5-acetyl-4-phenyl-1,3-thiazol-2-yl)-2-methylsulfanylpyridine-3-carboxamide 919907-29-2
1-Bromo-1,1-dichloro-2-methyl-2-propanol 3999-48-2
Tetramercapto-benzol 117526-79-1
Ethyl 3-(2-amino-4-trifluoromethylanilino)-1-methylpyrazole-4-carboxylate 79291-60-4
1-(2-Chlorophenyl)-4-(3,5-dimethoxybenzoyl)piperazine 1061589-76-1
Pyrogallol 2-acetate 74129-04-7
5-Allylbenzene-1,2,3-triol 850896-26-3
4-(1,1-Difluoro-2,2-dimethylpropyl)benzoic acid 167760-35-2
1-(azepan-1-yl)-2-(3-{[(3-chlorophenyl)methyl]sulfanyl}-1H-indol-1-yl)ethan-1-one 878055-07-3
Ethyl 5-bromofuran-3-carboxylate 32460-20-1
2,4-Dichloro-5-sulfobenzoic acid 41332-59-6
(4,6-Dichloro-2-methylpyrimidin-5-yl)methanol 1824385-55-8
Citraconamic 79990-33-3
Butanoic acid, 2-nitro-, anhydride with hypofluorous acid (9CI) 125973-30-0
(5-Methyl-1H-pyrazol-1-YL)acetonitrile 218921-02-9
7-Chloro-1,4-dioxa-8-thiaspiro[4.5]decane 61477-18-7
1-Iodo-5,6,7,8-tetrahydro-2-naphthol 71758-46-8
5-Butyl-1,2,3-trimethoxybenzene 1227268-54-3

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