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-[(3,4-Dimethylphenyl)amino]-3-pyridinecarbonitrile 121005-02-5
2-(4-Nitrophenylamino)phenol 119707-16-3
2-Phenethoxyethane-1-sulfonyl chloride 189012-34-8
N-(4-Amino-2-chloro-5-hydroxyphenyl)acetamide 144680-96-6
2-Chloro-6-ethenylpyrazine 2228314-07-4
Methyl 3-amino-6-methoxythieno[3,2-b]pyridine-2-carboxylate 208994-07-4
3-(2,6-Difluorophenyl)-1-(2-methylphenyl)prop-2-en-1-one 1061887-24-8
N-(3-chlorophenyl)-2-[2-(morpholin-4-yl)-4-oxo-4,5-dihydro-1,3-thiazol-5-yl]acetamide 1010890-86-4
1-(3-Butoxypropyl)-3-hydroxy-2-methylpyrid-4-one 150455-58-6
5-amino-3-chloro-N,N-dimethylpicolinamide 141238-25-7
5-chloro-2-(methoxymethyl)-1H-benzimidazole 929339-02-6
2-(5,6-dimethyl-1H-benzimidazol-1-yl)acetamide 953847-76-2
(1Z)-2-(5,6-dimethyl-1H-benzimidazol-1-yl)-N'-hydroxyethanimidamide 889951-80-8
N-(3-fluorobenzyl)tetrahydrothiophen-3-amine 1,1-dioxide 953853-00-4
N-{2-methyl-4-[(E)-(2-methylphenyl)diazenyl]phenyl}-5-phenyl-1,2-oxazole-3-carboxamide 898521-19-2
2-(2-chlorophenoxy)-N-[2-(morpholin-4-yl)-2-(thiophen-2-yl)ethyl]acetamide 898495-23-3
Methyl 2-methoxy-6-methylpyrimidine-4-carboxylate 136517-99-2
2-Methyl-4-(1,2,3,6-tetrahydropyridin-5-yl)-1,3-oxazole 122829-36-1
o-Cyclobutylhydroxylamine 134330-48-6
5-(4-chloro-2-nitrophenyl)-2-methyl-N-[3-(2-oxopropyl)-1,2,4-thiadiazol-5-yl]furan-3-carboxamide 900136-75-6
(E)-2-(5-((5-(2-fluorophenyl)furan-2-yl)methylene)-4-oxo-2-thioxothiazolidin-3-yl)hexanoic acid 951901-55-6
(E)-4-(5-oxo-2-thioxo-4-((5-(m-tolyl)furan-2-yl)methylene)thiazolidin-3-yl)butanoic acid 951896-40-5
7-methyl-1-oxo-1H-isochromene-3-carboxylic acid 951896-48-3
N-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)benzofuran-3-carboxamide 951894-73-8
Ethyl 4-(benzylamino)-6-chloroquinoline-3-carboxylate 955283-33-7
6-(4-ethylpiperazin-1-yl)-N-(3-methylphenyl)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine 946265-73-2
N-(3-fluorophenyl)-1-phenyl-6-(piperidin-1-yl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine 955304-40-2
N-{5-[2-(3,4-dimethoxyphenyl)ethyl]-1,4,5,6-tetrahydro-1,3,5-triazin-2-yl}-4,8-dimethylquinazolin-2-amine 945371-22-2
(2Z)-3-(dimethylamino)-1-(4-methoxyphenyl)prop-2-en-1-one 1702276-05-8
1-(2-chlorobenzyl)-5-methyl-3,4-dinitro-1H-pyrazole 1005669-24-8
[(3-Amino-4-oxo-3,4-dihydroquinazolin-2-yl)thio]acetonitrile 832739-29-4
2-({5-[2-(4-bromo-3,5-dimethyl-1H-pyrazol-1-yl)ethyl]-4-ethyl-4H-1,2,4-triazol-3-yl}sulfanyl)acetohydrazide 1005630-40-9
1-[(1-methyl-1H-pyrazol-4-yl)methyl]-1H-pyrazol-3-amine 1005584-17-7
1-(2-chloro-6-fluorobenzyl)-3-isothiocyanato-1H-pyrazole 1005697-84-6
Propan-2-yl 2-amino-4-(4-chlorophenyl)-5-methylthiophene-3-carboxylate 832739-94-3
6-Amino-3-methyl-4-(4-methylphenyl)-1-(4-nitrophenyl)-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile 832740-51-9
methyl 3-[5-cyclopropyl-3-(trifluoromethyl)-1H-pyrazol-1-yl]-2-methylpropanoate 1005700-15-1
3-(4-bromo-3,5-dimethyl-1H-pyrazol-1-yl)-2-methylpropanehydrazide 1005700-37-7
methyl 3-(3,5-dimethyl-4-nitro-1H-pyrazol-1-yl)-2-methylpropanoate 1005670-63-2
2-chloro-N-[4-(furan-2-yl)pyrimidin-2-yl]acetamide 832740-97-3
(5-Ethyl-2-phenyl-1,2,3-triazol-4-yl)methan-1-ol 279682-49-4
4-Amino-6-chloro-2-(4-methoxyphenyl)methyl-2H-pyrazolo[3,4-b]pyridine-5-carboxylic Acid 384835-97-6
Oxazole, 2-[4-bromo-3-(dibromomethyl)phenyl]- 415697-61-9
4-Bromo-3-(dibromomethyl)benzoyl chloride 415697-60-8
1,2,3,4,5,10-Hexahydroazepino[3,4-b]indole 23240-51-9
2-[2-(Hydroxymethyl)benzimidazolyl]-1-(1,2,3,4-tetrahydroquinolyl)ethan-1-one 942883-78-5
1-Ethynyl-4-(trifluoromethyl)cyclohexane 1936532-46-5
2,3',4',6-Tetrafluoro-[1,1'-biphenyl]-4-ol 212386-82-8
Bis(4-cyanatophenyl)sulfone 2918-28-7
Isobutyrfentanyl 119618-70-1

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