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
6-(4-Ethoxyphenyl)-2-(3-hydroxypropyl)-4,7,8-trimethyl-4a,9a-dihydropurino[7,8-a]imidazole-1,3-dione 876901-89-2
4,6,7-trimethyl-2-(naphthalen-1-ylmethyl)-9aH-purino[7,8-a]imidazol-9-ium-1,3-dione 876902-07-7
6-ethyl-2-(3-hydroxypropyl)-4,7-dimethyl-9aH-purino[7,8-a]imidazol-9-ium-1,3-dione 876902-23-7
4,7-dimethyl-2-(2-methylprop-2-enyl)-6-propyl-9aH-purino[7,8-a]imidazol-9-ium-1,3-dione 876902-24-8
6-(2-methoxyethyl)-4,7-dimethyl-2-(2-methylprop-2-enyl)-9aH-purino[7,8-a]imidazol-9-ium-1,3-dione 876902-33-9
2-[(2,4-Dichlorophenyl)methyl]-6-(2-methoxyethyl)-4,7-dimethyl-4a,9a-dihydropurino[7,8-a]imidazole-1,3-dione 876902-34-0
2-[(2,6-Dichlorophenyl)methyl]-6-(2-methoxyethyl)-4,7-dimethyl-4a,9a-dihydropurino[7,8-a]imidazole-1,3-dione 876902-35-1
2-[(3,4-Dichlorophenyl)methyl]-6-(2-methoxyethyl)-4,7-dimethyl-4a,9a-dihydropurino[7,8-a]imidazole-1,3-dione 876902-36-2
6-(2-Methoxyethyl)-4,7-dimethyl-2-(3-phenylpropyl)-4a,9a-dihydropurino[7,8-a]imidazole-1,3-dione 876902-37-3
2-(3-hydroxypropyl)-6-(2-methoxyethyl)-4,7-dimethyl-9aH-purino[7,8-a]imidazol-9-ium-1,3-dione 876902-38-4
6-(3-methoxypropyl)-4,7-dimethyl-2-(2-methylprop-2-enyl)-9aH-purino[7,8-a]imidazol-9-ium-1,3-dione 876902-39-5
2-[(2-Chloro-6-fluorophenyl)methyl]-6-(3-methoxypropyl)-4,7-dimethyl-4a,9a-dihydropurino[7,8-a]imidazole-1,3-dione 876902-40-8
L-Seryl-L-seryl-N~5~-(diaminomethylidene)-L-ornithyl-L-cysteinyl-L-seryl-L-seryl-L-seryl-L-serine 919282-55-6
2-[4-(2-Fluorophenyl)piperazin-1-yl]-6-methyl-5-methylidenepyrimidin-4-one 876667-32-2
2-[(4,6-Dimethylquinazolin-2-yl)amino]-6-[(4-methylpyrimidin-2-yl)sulfanylmethyl]-1,3-diazinan-4-one 876667-50-4
2-[(4,7-Dimethylquinazolin-2-yl)amino]-6-(4-methoxyphenyl)-1,3-diazinan-4-one 876667-55-9
2-[(6-Methoxy-4-methylquinazolin-2-yl)amino]-6-propan-2-yl-1,3-diazinan-4-one 876667-58-2
2-(1,3-Benzoxazol-2-ylamino)-6-propan-2-yl-1,3-diazinan-4-one 876667-98-0
6-[(5-Methyl-1,3,4-thiadiazol-2-yl)sulfanylmethyl]-2-phenyl-1,3a,5,6,7,7a-hexahydropyrazolo[3,4-b]pyridine-3,4-dione 876668-07-4
6-[(4-Methylpyrimidin-2-yl)sulfanylmethyl]-2-phenyl-1,3a,5,6,7,7a-hexahydropyrazolo[3,4-b]pyridine-3,4-dione 876668-09-6
5-Chloro-6-methyl-2-phenyl-1,3a,5,6,7,7a-hexahydropyrazolo[3,4-b]pyridine-3,4-dione 876668-11-0
2-(1,3-Benzothiazol-2-ylamino)-6-propan-2-yl-1,3-diazinan-4-one 876668-15-4
2-[4-(2-Fluorophenyl)piperazin-1-yl]-6-[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanylmethyl]-1,3-diazinan-4-one 876668-16-5
2-[4-(1,3-Benzodioxol-5-ylmethyl)piperazin-1-yl]-6-(4-methoxyphenyl)-1,3-diazinan-4-one 876668-28-9
L-Seryl-L-histidyl-L-leucyl-L-glutaminyl-L-lysyl-L-tyrosyl-N~5~-(diaminomethylidene)-L-ornithyl-L-leucine 918825-97-5
1-(3-Chloro-4-methoxyphenyl)-3-(1,1-dimethylethyl)-1H-pyrazol-5-amine 876299-99-9
2-(2-Aminopropyl)-4-bromophenol 477514-54-8
4,7,8-Trichloro-6-methylquinoline 1422497-89-9
(2R,3R,4S,5R)-2-(6-((2-(Benzo[d]thiazol-2-ylamino)ethyl)amino)-9H-purin-9-yl)-5-(hydroxymethyl)tetrahydrofuran-3,4-diol 143354-79-4
tert-butyl N-[2-amino-3-(1-benzothiophen-3-yl)propyl]carbamate 2008561-74-6
2-ethoxy-N-(piperidin-4-ylmethyl)benzamide hydrochloride 1638612-82-4
3-Methyl-3-(3-phenyl-1,2,4-oxadiazol-5-yl)piperidine hydrochloride 1956307-81-5
2,5-dimethyl-2H-1,2,6-thiadiazine-4-carboxylic acid 1,1-dioxide-ethanamine (1:1) 1993057-97-8
4-tert-butyl-N-(piperidin-4-ylmethyl)benzamide hydrochloride 1589446-11-6
({1-[(4-Ethoxyphenyl)acetyl]piperidin-4-yl}methyl)amine hydrochloride 1573035-08-1
{[1-(2,4-Dichlorobenzoyl)piperidin-4-yl]methyl}amine hydrochloride 1585925-22-9
2-amino-N-(3-cyanophenyl)acetamide hydrochloride 1403958-54-2
1-benzyl-4-hydroxy-1,6-naphthyridin-2(1H)-one 1422496-29-4
Cis-methyl 2-(furan-2-yl)-4-oxocyclohexanecarboxylate 137703-54-9
1-(2,3-Dichlorophenyl)pyrazole-4-carboxylic acid 1369344-14-8
ethyl 1-(3-chloro-2-fluorophenyl)-5-methyl-1H-pyrazole-4-carboxylate 1422386-21-7
1-(5-Chloro-2-methoxyphenyl)-5-methylpyrazole-4-carboxylic acid 1226363-56-9
(R)-2-Acetamido-3-((2-amino-4-(5-nitrofuran-2-yl)thiazol-5-yl)thio)propanoic acid 113790-27-5
Ethyl 5-amino-1-(3-chloro-2-fluorophenyl)-1H-pyrazole-4-carboxylate 1422385-89-4
2-chloro-N-[1-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-2-oxopyrimidin-4-yl]acetamide 113737-50-1
ethyl 1-(3-chloro-2-fluorophenyl)-4-methyl-1H-imidazole-5-carboxylate 1422386-13-7
5-Amino-1-(3-chloro-2-fluorophenyl)-1H-pyrazole-4-carboxylic acid 1422385-90-7
L-Argininamide, 1-acetyl-L-prolyl-N-(4-nitrophenyl)- 103418-62-8
6-Bromo-3-{6-[4-(4-fluorophenyl)piperazin-1-yl]-6-oxohexyl}-2-sulfanylidene-1,2,3,4-tetrahydroquinazolin-4-one 422288-45-7
N-[(2-chlorophenyl)methyl]-4-{[(2-sulfanylidene-1,2-dihydroquinazolin-4-yl)amino]methyl}cyclohexane-1-carboxamide 689265-92-7

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