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
Methyl 2-((5-(2,5-dichlorophenyl)furan-2-yl)methylene)-7-methyl-5-(4-(methylthio)phenyl)-3-oxo-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate 611195-35-8
Ethyl 7-methyl-2-(4-(methylthio)benzylidene)-5-(4-(methylthio)phenyl)-3-oxo-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate 292641-83-9
Benzyl 7-methyl-2-(4-(methylthio)benzylidene)-5-(4-(methylthio)phenyl)-3-oxo-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate 609794-95-8
(E)-4-(3-(5-(furan-2-ylmethylene)-4-oxo-2-thioxothiazolidin-3-yl)propanamido)-2-hydroxybenzoic acid 612803-74-4
Furan-2-ylmethyl-(6,7,8-trimethoxy-quinazolin-4-yl)-amine 150450-09-2
(E)-N'-(4-(5-(3-methoxybenzylidene)-4-oxo-2-thioxothiazolidin-3-yl)butanoyl)-3-nitrobenzohydrazide 476667-96-6
3-(2-Chlorophenyl)-4-((3-(furan-2-yl)-2-methylallylidene)amino)-1H-1,2,4-triazole-5(4H)-thione 478254-43-2
5-(3-Chlorophenyl)-4-((1-naphthylmethylene)amino)-4H-1,2,4-triazole-3-thiol 478254-68-1
3-(3-Chlorophenyl)-4-((4-(methylthio)benzylidene)amino)-1H-1,2,4-triazole-5(4H)-thione 478254-87-4
3-(3-Chlorophenyl)-4-((3-(furan-2-yl)-2-methylallylidene)amino)-1H-1,2,4-triazole-5(4H)-thione 478255-32-2
5-(3-Methylphenyl)-4-((1-naphthylmethylene)amino)-4H-1,2,4-triazole-3-thiol 478255-59-3
Methyl 4-(((5-thioxo-3-(m-tolyl)-1H-1,2,4-triazol-4(5H)-yl)imino)methyl)benzoate 478255-70-8
4-((4-(Methylthio)benzylidene)amino)-3-(m-tolyl)-1H-1,2,4-triazole-5(4H)-thione 478255-83-3
4-((2-Chlorobenzylidene)amino)-5-(m-tolyl)-4H-1,2,4-triazole-3-thiol 613248-78-5
4-(((1-Methyl-1H-pyrrol-2-yl)methylene)amino)-3-(m-tolyl)-1H-1,2,4-triazole-5(4H)-thione 478256-16-5
4-((3-(Furan-2-yl)-2-methylallylidene)amino)-3-(m-tolyl)-1H-1,2,4-triazole-5(4H)-thione 478256-28-9
2-(((5-Thioxo-3-(m-tolyl)-1H-1,2,4-triazol-4(5H)-yl)imino)methyl)benzoic acid 150093-68-8
2-(2-(((3-(2-Methoxyphenyl)-5-thioxo-1H-1,2,4-triazol-4(5H)-yl)imino)methyl)phenoxy)acetic acid 478256-51-8
5-(2-Methoxyphenyl)-4-((naphthalen-1-ylmethylene)amino)-4H-1,2,4-triazole-3-thiol 478256-53-0
Methyl 4-(((3-(2-methoxyphenyl)-5-thioxo-1H-1,2,4-triazol-4(5H)-yl)imino)methyl)benzoate 478256-62-1
3-(2-Methoxyphenyl)-4-((4-(methylthio)benzylidene)amino)-1H-1,2,4-triazole-5(4H)-thione 478256-70-1
4-(((3-(2-Methoxyphenyl)-5-thioxo-1H-1,2,4-triazol-4(5H)-yl)imino)methyl)benzoic acid 478257-30-6
2-(((3-(2-Methoxyphenyl)-5-thioxo-1H-1,2,4-triazol-4(5H)-yl)imino)methyl)benzoic acid 478257-50-0
2-(2-(((3-(3-Methoxyphenyl)-5-thioxo-1H-1,2,4-triazol-4(5H)-yl)imino)methyl)phenoxy)acetic acid 478257-69-1
4-((2-Chlorobenzylidene)amino)-5-(3-methoxyphenyl)-4H-1,2,4-triazole-3-thiol 613248-97-8
(Z)-N-(3-((3-hydroxypropyl)amino)-3-oxo-1-(5-(4-sulfamoylphenyl)furan-2-yl)prop-1-en-2-yl)-4-methylbenzamide 615273-85-3
(E)-methyl 2-(4-(dimethylamino)benzylidene)-7-methyl-3-oxo-5-(thiophen-2-yl)-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate 324071-35-4
(Z)-4-methoxy-N-(1-(4-(2-(2-methoxyphenoxy)ethoxy)phenyl)-3-(methylamino)-3-oxoprop-1-en-2-yl)benzamide 615274-35-6
(E)-4-(4-(5-(furan-2-ylmethylene)-4-oxo-2-thioxothiazolidin-3-yl)butanamido)benzoic acid 637318-98-0
(Z)-N-(1-(5-(3,4-dichlorophenyl)furan-2-yl)-3-((2-(dimethylamino)ethyl)amino)-3-oxoprop-1-en-2-yl)benzamide 468753-70-0
3-Allyl-2-(((5-(4-chlorophenyl)furan-2-yl)methylene)hydrazono)-5-(3-methylbenzyl)thiazolidin-4-one 290839-64-4
(2Z)-2-cyano-3-[5-(4-fluorophenyl)furan-2-yl]-N-(2,4,6-trimethylphenyl)prop-2-enamide 501109-43-9
N-undecyl-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidin-4-amine 683796-90-9
methyl 2-amino-4-(4-chlorophenyl)-7-methyl-5-oxo-6-(pyridin-2-ylmethyl)-5,6-dihydro-4H-pyrano[3,2-c]pyridine-3-carboxylate 767299-97-8
methyl 2-amino-4-(2,3-dimethoxyphenyl)-7-methyl-5-oxo-6-(pyridin-2-ylmethyl)-5,6-dihydro-4H-pyrano[3,2-c]pyridine-3-carboxylate 767300-00-5
methyl 2-amino-4-(4-fluorophenyl)-7-methyl-5-oxo-5,6-dihydro-4H-pyrano[3,2-c]pyridine-3-carboxylate 767300-05-0
5-(3,5-dimethoxyphenyl)-3-hydroxy-4-[(4-methoxyphenyl)carbonyl]-1-(3-methoxypropyl)-1,5-dihydro-2H-pyrrol-2-one 879182-41-9
(5Z)-3-ethyl-5-({3-[2-methyl-4-(prop-2-en-1-yloxy)phenyl]-1-phenyl-1H-pyrazol-4-yl}methylidene)-2-thioxo-1,3-thiazolidin-4-one 955866-24-7
(5Z)-3-butyl-5-({3-[2-methyl-4-(prop-2-en-1-yloxy)phenyl]-1-phenyl-1H-pyrazol-4-yl}methylidene)-2-thioxo-1,3-thiazolidin-4-one 955867-98-8
benzyl (2Z)-7-methyl-2-(1-methyl-2-oxo-1,2-dihydro-3H-indol-3-ylidene)-3-oxo-5-(thiophen-2-yl)-2,3-dihydro-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate 608119-98-8
Benzyl (2Z)-2-(1-ethyl-2-oxo-1,2-dihydro-3H-indol-3-ylidene)-7-methyl-3-oxo-5-(2-thienyl)-2,3-dihydro-5H-[1,3]thiazolo[3,2-A]pyrimidine-6-carboxylate 608120-01-0
(5Z)-5-({3-[2-methyl-4-(prop-2-en-1-yloxy)phenyl]-1-phenyl-1H-pyrazol-4-yl}methylidene)-3-octyl-2-thioxo-1,3-thiazolidin-4-one 955895-46-2
(5Z)-3-hexyl-5-({3-[2-methyl-4-(prop-2-en-1-yloxy)phenyl]-1-phenyl-1H-pyrazol-4-yl}methylidene)-2-thioxo-1,3-thiazolidin-4-one 955876-88-7
(5Z)-5-({3-[2-methyl-4-(prop-2-en-1-yloxy)phenyl]-1-phenyl-1H-pyrazol-4-yl}methylidene)-3-pentyl-2-thioxo-1,3-thiazolidin-4-one 955899-14-6
(5Z)-5-{[3-(4-butoxy-2-methylphenyl)-1-phenyl-1H-pyrazol-4-yl]methylidene}-3-butyl-2-thioxo-1,3-thiazolidin-4-one 955875-26-0
(5Z)-5-({3-[2-methyl-4-(prop-2-en-1-yloxy)phenyl]-1-phenyl-1H-pyrazol-4-yl}methylidene)-3-propyl-2-thioxo-1,3-thiazolidin-4-one 955870-73-2
5-chloro-N-(3-chlorobenzyl)-N-(1,1-dioxidotetrahydrothiophen-3-yl)-2-(methylsulfanyl)pyrimidine-4-carboxamide 880786-93-6
(5Z)-5-{[3-(4-methoxy-2-methylphenyl)-1-phenyl-1H-pyrazol-4-yl]methylidene}-3-octyl-2-thioxo-1,3-thiazolidin-4-one 955899-02-2
(5Z)-3-(butan-2-yl)-5-({3-[3-methyl-4-(prop-2-en-1-yloxy)phenyl]-1-phenyl-1H-pyrazol-4-yl}methylidene)-2-thioxo-1,3-thiazolidin-4-one 955893-51-3
(E)-4-[[1,3-dioxo-2-(oxolan-2-ylmethyl)isoindol-5-yl]amino]-4-oxobut-2-enoic acid 899269-35-3

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