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-Dichlorophenyl)sulfonyl]cyclohexylmethylamine 1110976-00-5
n-(2-Methoxybenzyl)-3-methylbut-2-enamide 1197654-38-8
N-(5-chloro-2,4-dimethoxyphenyl)-2-{4-[(2,3-dihydro-1-benzofuran-5-yl)methyl]piperazin-1-yl}acetamide 950148-90-0
3-((4-(2-Hydroxyethyl)piperazin-1-yl)methyl)benzonitrile 1156671-85-0
4-Piperidinecarboxamide, 1-(2-methyl-1-oxopropyl)-N-[4-(2-phenyldiazenyl)phenyl]- 1120274-50-1
Methyl 2-({4-[4-methyl-6-(methylsulfanyl)-2-(thiophen-2-yl)pyrimidine-5-amido]phenyl}formamido)acetate 1087801-93-1
3-(6-(4-Methoxyphenyl)imidazo[2,1-b]thiazol-3-yl)-1-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)propan-1-one 1171924-25-6
2-(4-oxo-7-phenyl-2-(pyrrolidin-1-yl)thiazolo[4,5-d]pyridazin-5(4H)-yl)-N-(4-(trifluoromethyl)phenyl)acetamide 1105232-35-6
N-(furan-2-ylmethyl)-2-(4-oxo-2-(piperidin-1-yl)-7-(thiophen-2-yl)thiazolo[4,5-d]pyridazin-5(4H)-yl)acetamide 1105234-24-9
N-(2,4-dimethoxyphenyl)-2-(7-(furan-2-yl)-4-oxo-2-(pyrrolidin-1-yl)thiazolo[4,5-d]pyridazin-5(4H)-yl)acetamide 1105207-11-1
N-(2-fluorophenyl)-2-(7-(furan-2-yl)-4-oxo-2-(piperidin-1-yl)thiazolo[4,5-d]pyridazin-5(4H)-yl)acetamide 1105241-34-6
N-(2,5-diethoxyphenyl)-2-(3-formylphenoxy)acetamide 1090911-91-3
1-(4-fluorobenzyl)-2-oxo-N'-(2-(m-tolyl)acetyl)-1,2-dihydropyridine-3-carbohydrazide 1105243-29-5
N'-acetyl-1-(4-fluorobenzyl)-2-oxo-1,2-dihydropyridine-3-carbohydrazide 1105242-65-6
1-(4-fluorobenzyl)-2-oxo-N'-(2-phenoxyacetyl)-1,2-dihydropyridine-3-carbohydrazide 1105242-84-9
3-chloro-1-(1H-imidazol-1-yl)propan-1-one 67664-95-3
2-[benzyl(propan-2-yl)amino]-N-(1-cyanocyclopentyl)acetamide 1208879-78-0
1-(4-(1,1-Dioxidoisothiazolidin-2-yl)phenyl)-3-(3-methoxyphenyl)urea 1202974-70-6
1-(3-Chlorophenyl)-3-(4-(1,1-dioxidoisothiazolidin-2-yl)phenyl)urea 1203144-96-0
N-(1-cyanocyclopentyl)-2-[(2-fluoro-5-methanesulfonylphenyl)amino]acetamide 1090961-65-1
1-(4-Chlorobenzyl)-3-(4-(1,1-dioxidoisothiazolidin-2-yl)phenyl)urea 1203067-82-6
1-Benzyl-3-(4-(1,1-dioxidoisothiazolidin-2-yl)phenyl)urea 1203205-14-4
1-(4-(1,1-Dioxidoisothiazolidin-2-yl)phenyl)-3-(4-methoxyphenethyl)urea 1203003-21-7
1-(5-Chloro-2-methoxyphenyl)-3-(4-(1,1-dioxidoisothiazolidin-2-yl)phenyl)urea 1203366-74-8
1-(4-(1,1-Dioxidoisothiazolidin-2-yl)phenyl)-3-(2-methoxyphenyl)urea 1203236-30-9
1H-Pyrazole-3-carboxamide, 5-cyclopropyl-N-(3-propoxyphenyl)- 1257858-95-9
N-benzyl-N-(2-methoxyethyl)-3-[[(E)-2-phenylethenyl]sulfonylamino]propanamide 1097453-99-0
1-(3,4-Dimethoxybenzyl)-3-(4-(1,1-dioxidoisothiazolidin-2-yl)phenyl)urea 1203307-17-8
3-methyl-N-[4-(1H-pyrazol-3-yl)phenyl]butanamide 1210296-42-6
1-(4-(1,1-Dioxidoisothiazolidin-2-yl)phenyl)-3-(thiophen-2-ylmethyl)urea 1203081-58-6
1-(4-(1,1-Dioxidoisothiazolidin-2-yl)phenyl)-3-(3-phenylpropyl)urea 1203080-36-7
1-(6-chloropyridazin-3-yl)-N-[6-(trifluoromethoxy)-1,3-benzothiazol-2-yl]piperidine-4-carboxamide 1401567-62-1
2-(1-oxophthalazin-2(1H)-yl)-N-[(2Z)-4-(pyridin-3-yl)-1,3-thiazol-2(3H)-ylidene]acetamide 1310946-60-1
2-(1-oxophthalazin-2(1H)-yl)-N-[(2Z)-4-(pyridin-2-yl)-1,3-thiazol-2(3H)-ylidene]acetamide 1282124-07-5
1-(3-(1,1-Dioxidoisothiazolidin-2-yl)phenyl)-3-(3,4,5-trimethoxyphenyl)urea 1203100-01-9
3-amino-1-[(2R,6S)-2,6-dimethylmorpholin-4-yl]propan-1-one 1597829-06-5
6-Hydroxy-5-(2-hydroxyethyl)-2-(trifluoromethyl)-4(3H)-pyrimidinone 1023813-81-1
N-[2-(4-fluorophenoxy)ethyl]-9H-xanthene-9-carboxamide 1105228-63-4
2-(4-acetyl-2-methoxyphenoxy)-N-[2-(4-fluorophenoxy)ethyl]acetamide 1105228-79-2
2-(4-cyclopropyl-1-(3,4-dimethylphenyl)-7-oxo-1H-pyrazolo[3,4-d]pyridazin-6(7H)-yl)-N-(2-methoxyethyl)acetamide 1105203-60-8
N-(4-(Difluoromethoxy)benzyl)quinazolin-4-amine 1808407-03-5
8-(2-Chloro-4-nitrophenyl)-1,4-dioxa-8-azaspiro[4.5]decane 873537-28-1
2-benzyl-1-(4-bromo-3-ethoxybenzenesulfonyl)-4,5-dihydro-1H-imidazole 1018057-51-6
2-(4-cyclopentylpiperazin-1-yl)-N-[3-(trifluoromethyl)phenyl]acetamide 2326605-76-7
6-chloro-N-{[6-(1H-imidazol-1-yl)pyridin-3-yl]methyl}pyridine-3-carboxamide 1090690-30-4
4-Propyl-3-(pyridin-2-yl)-1h-pyrazol-5-amine 1229025-40-4
2-[(3-chloro-2-fluorophenyl)amino]-N-(1-cyanocyclopentyl)acetamide 1209731-78-1
2-(4-Ethyl-1,3-thiazol-2-yl)acetic acid 1181105-79-2
Methyl 2-acetyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indole-8-carboxylate 1386087-61-1
(2R)-1-aminohexan-2-ol 156557-38-9

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