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
3-(2-Isobutoxybenzyl)-9-(pyrimidin-4-ylcarbonyl)-3,9-diazaspiro[5.5]undecane 851324-47-5
1-(5-Chloro-2-fluorophenyl)thiourea 1154326-60-9
1-(3-cyanophenyl)-N-(2-hydroxypropyl)methanesulfonamide 1154142-39-8
N-(1H-indol-5-yl)-4-oxo-4-[4-(2-pyridyl)piperazino]butanamide 1219560-06-1
2-(2-chloro-4-fluorobenzyl)-6-(3,4-dimethoxyphenyl)pyridazin-3(2H)-one 1219581-19-7
N-(2-hydroxypropyl)-2-methyl-4-nitrobenzenesulfonamide 1156253-31-4
2-(3,3-dimethyl-2-oxobutyl)-6-phenylpyridazin-3(2H)-one 1219569-29-5
[4-(2-methoxyphenyl)piperazin-1-yl](1-methyl-1H-indol-5-yl)methanone 1219563-27-5
2-(2-(4-(4-chlorophenyl)piperazin-1-yl)-2-oxoethyl)-6-(3,5-dimethyl-1H-pyrazol-1-yl)pyridazin-3(2H)-one 1219572-81-2
1-{[2-(2,4-Dichlorophenyl)-1,3-thiazol-4-yl]acetyl}piperidine-4-carboxylic acid 1219567-28-8
N-((1,1-dioxidotetrahydrothiophen-3-yl)methyl)furan-2-carboxamide 1211180-49-2
2-(benzylsulfonyl)-N-(4-(pyridin-2-yl)thiazol-2-yl)acetamide 923501-72-8
N-[(3-acetyl-1H-indol-1-yl)acetyl]glycylglycine 1219549-38-8
cis-5-((2-Fluorophenyl)sulfonyl)octahydropyrrolo[3,4-b]pyrrole 1218678-82-0
2-(1H-indol-6-yl)-1,3-dioxoisoindoline-5-carboxylic acid 1219555-38-0
4-(4-((2-Oxo-1,2,3,4-tetrahydroquinolin-7-yl)oxy)butoxy)benzoic acid 1219586-54-5
N-(4,5-dimethylthiazol-2-yl)-4-(2,5-dioxopyrrolidin-1-yl)benzamide 923443-96-3
2,6-Dichloro-3-iodo-4-(trifluoromethyl)pyridine 1186405-02-6
2-(benzylsulfonyl)-N-(4-fluorobenzo[d]thiazol-2-yl)acetamide 923388-55-0
methyl[(Z)-2-nitro-1-(pyrrolidin-1-yl)ethenyl]amine 65774-06-3
methyl 3-((2-(3,5-dimethyl-1H-pyrazol-1-yl)ethyl)amino)propanoate 1219588-46-1
methyl 3-((2-(1H-pyrazol-1-yl)ethyl)amino)propanoate 1219554-81-0
methyl 3-((2-(3-methyl-1H-pyrazol-1-yl)ethyl)amino)propanoate 1140908-38-8
N-[2-(3,5-dimethyl-1H-pyrazol-1-yl)ethyl]-beta-alanine 1245569-21-4
3-(4,5-dichloro-1H-imidazol-1-yl)propanoic acid 1219564-85-8
2-(4,5-dichloro-1H-imidazol-1-yl)-1-(4-methylpiperazin-1-yl)ethanone 1219555-68-6
2-(4,5-dichloro-1H-imidazol-1-yl)-N-(pyridin-3-ylmethyl)acetamide 1219558-13-0
2-(4,5-dichloro-1H-imidazol-1-yl)-N-(pyridin-3-yl)acetamide 1219575-72-0
5-(3-methyl-1H-pyrazol-5-yl)thiophene-2-sulfonyl chloride 1273553-52-8
6-chloro-2-(1,1-dioxidotetrahydrothiophen-3-yl)pyridazin-3(2H)-one 1219568-77-0
1-Isopropyl-5-oxo-2-(pyridin-2-yl)pyrrolidine-3-carboxylic acid 1219538-85-8
methyl 2-amino-4-(2-methyl-2H-tetrazol-5-yl)benzoate 1219578-96-7
(5-amino-1-butyl-1H-1,3-benzodiazol-2-yl)methanol 1224322-32-0
5-(5,6-dimethyl-1H-benzimidazol-2-yl)pentanoic acid 1224322-38-6
5-[2-(1H-indol-3-yl)ethyl]-1H-1,2,4-triazol-3-amine 1245570-09-5
2-[(6-Amino-2-methylpyrimidin-4-yl)amino]benzoic acid 1219545-58-0
3-[(6-Amino-2-methylpyrimidin-4-yl)amino]benzoic acid 1219577-39-5
3-(7-methoxy-1H-indol-1-yl)propanoic acid 1219587-07-1
3,4-dimethyl-2-(1H-tetrazol-1-yl)benzoic acid 1219547-74-6
3-amino-4-phenyl-4,5-dihydro-1H-pyrazol-5-one 103755-48-2
3-(3-chloro-1H-1,2,4-triazol-5-yl)benzoic acid 1219549-02-6
4-(3-chloro-1H-1,2,4-triazol-5-yl)benzoic acid 1219558-43-6
1-benzyl-3-bromo-1H-1,2,4-triazole 1219543-17-5
3-bromo-1-(2-phenylethyl)-1H-1,2,4-triazole 1219546-16-3
N-(4-cyanophenyl)-N-(methylsulfonyl)glycine 1219573-92-8
methyl 2-(N-(furan-2-ylmethyl)methylsulfonamido)acetate 1219547-73-5
2-cyclopentyl-N-((1-(3-fluorophenyl)-1H-tetrazol-5-yl)methyl)acetamide 921075-51-6
N-(4,5-dimethyl-1,3-thiazol-2-yl)-2-(3,5,9-trimethyl-7-oxo-7H-furo[3,2-g]chromen-6-yl)acetamide 1219567-94-8
methyl 3-({[4-(2,5-dimethoxyphenyl)-3,4,6,7-tetrahydro-5H-imidazo[4,5-c]pyridin-5-yl]carbonyl}amino)-4-methylbenzoate 1219543-05-1
N-[(4-methyl-1H-indol-1-yl)acetyl]glycylglycine 1219585-18-8

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