CAS Number

A CAS number, also known as a CAS registry number or CAS log number, is a unique identification number assigned by the Chemicals Service (CAS), a division of the American Chemical Society, to chemical substances. It is an important tool for retrieving information on chemicals that have multiple names. Chemical substances can be described in many different ways, such as by molecular formula, structural formula, systematic name, generic name, or trade name. However, the CAS Registry Number is unique to a single substance.

CAS 2229415-28-3|[1-(1-Ethylcyclobutyl)cyclopropyl]methanol CAS 2229111-67-3|1-[2-(1-Benzothiophen-3-yl)ethyl]cyclopropan-1-ol CAS 2228092-55-3|2-Amino-3-(5-{[(tert-butoxy)carbonyl]amino}-2-fluorophenyl)propanoic acid CAS 2228221-82-5|4-(2,5-dimethyl-1H-pyrrol-3-yl)butanal CAS 2229618-38-4|3-[(2-Fluoro-5-nitrophenyl)methyl]azetidine CAS 2229415-21-6|tert-butyl N-[2-amino-3-(2-methanesulfonylphenyl)propyl]carbamate CAS 2228479-86-3|3-(2,5-Dimethylthiophen-3-yl)-1,1,1-trifluoropropan-2-ol CAS 2229109-79-7|tert-butyl 3-[4-(methoxycarbonyl)-1-methyl-1H-pyrazol-5-yl]piperazine-1-carboxylate CAS 2227941-20-8|(2R)-2-amino-3-(1-methylpyrrolidin-2-yl)propan-1-ol CAS 2227905-75-9|rac-(1R,3R)-2,2-dimethyl-3-(2,2,3,3-tetramethylcyclopropyl)cyclopropane-1-carboxyli CAS 2227728-94-9|methyl 5-[(1S)-1-hydroxy-3-methoxy-3-oxopropyl]-1-methyl-1H-pyrazole-3-carboxylate CAS 2228946-58-3|[5-(2-Methylcyclopropyl)furan-2-yl]methanesulfonyl chloride CAS 2408936-45-6|rac-methyl (2R,3R,4S)-3,4-dihydroxypiperidine-2-carboxylate CAS 2228086-13-1|Methyl 2-amino-3-(1,1-dioxo-1lambda6-thiolan-3-yl)-3-methylbutanoate CAS 2752190-71-7|rac-methyl(2R,3R,4S)-3,4-dihydroxypiperidine-2-carboxylatehydrochloride CAS 2023181-44-2|Methyl 2-hydroxy-2-(4-methyl-1,3-thiazol-5-yl)acetate CAS 2229109-69-5|Methyl 4-methoxy-3-(2-methyl-1-oxopropan-2-yl)benzoate CAS 2228375-10-6|{1-[2-Chloro-6-(trifluoromethyl)phenyl]-2,2-difluorocyclopropyl}methanamine CAS 2228375-35-5|[1-(5-Methoxypyridin-3-yl)cyclohexyl]methanamine CAS 2171640-60-9|1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-N,4,4-trimethylpentanamido]cyclobu CAS 2229507-59-7|3-(7-Chloroquinolin-8-yl)-2,2-difluoropropanoic acid CAS 2229618-08-8|1-Ethynyl-4-(2-methylbut-3-yn-2-yl)benzene CAS 2172095-53-1|1-Ethyl-3-(1-hydroxycyclobutyl)piperidine-3-carboxylic acid CAS 2228479-62-5|tert-butyl N-[3-amino-2-(4-methyl-1H-imidazol-5-yl)propyl]carbamate CAS 2229513-32-8|2-(4-Bromo-5-methoxythiophen-2-yl)pyrrolidine CAS 1336967-63-5|4-Amino-4-[2-(dimethylamino)pyridin-3-yl]butanoic acid CAS 2228375-28-6|2-(5-Bromo-2-cyclopropylpyrimidin-4-yl)-2-methylpropan-1-amine CAS 2408970-35-2|2-{[(9H-fluoren-9-yl)methoxy]carbonyl}-5-oxo-2-azabicyclo[4.2.0]octane-8-carboxylic CAS 2228546-23-2|2-Amino-3-fluoro-2,3-dimethylbutan-1-ol CAS 2229670-68-0|3-(2-nitroethenyl)-1H-1,2,4-triazole CAS 2229415-05-6|2-[1-(3-Chloro-4-fluorophenyl)cyclobutyl]ethan-1-amine CAS 2228269-02-9|tert-butyl N-[2-amino-2-(2-methyl-2,3-dihydro-1-benzofuran-5-yl)ethyl]carbamate CAS 2228740-49-4|1-Amino-2-(2,5-dimethylthiophen-3-yl)propan-2-ol CAS 2228268-94-6|Methyl 3-(2-chloroacetyl)-4-methoxybenzoate CAS 2227903-78-6|methyl (3S)-3-hydroxy-3-(6-methylpyridin-2-yl)propanoate CAS 2228221-32-5|[1-(4-Ethylcyclohexyl)-2,2-dimethylcyclopropyl]methanol CAS 2228546-08-3|3-(2,2,3,3-Tetramethylcyclopropoxy)piperidine CAS 2228622-40-8|2-Hydroxy-3,3,4-trimethylpentanoic acid CAS 2228545-96-6|2-(2-Bromo-4-fluorophenyl)prop-2-enoic acid CAS 2228622-35-1|2-[(Azetidin-3-yl)methyl]-5-methylpyridine CAS 2229305-18-2|2,2-Difluoro-1-(2-methylquinolin-4-yl)ethan-1-one CAS 2227979-73-7|rac-(1R,3R)-3-{1-[(tert-butoxy)carbonyl]piperidin-2-yl}-2,2-dimethylcyclopropane-1- CAS 2229109-21-9|4-[1-(Aminomethyl)-3-hydroxycyclobutyl]-3-methoxyphenol CAS 2229533-41-7|2-(3-Amino-1,1,1-trifluoropropan-2-yl)-5-methylphenol CAS 2228221-18-7|1-(2-Cyclopropyl-1,3-thiazol-4-yl)-2,2-difluorocyclopropane-1-carboxylic acid CAS 2228545-92-2|tert-butyl N-{2-amino-1-[2-nitro-4-(trifluoromethyl)phenyl]ethyl}carbamate CAS 2227880-70-6|rac-[(1R,2R)-2-(5-nitrothiophen-2-yl)cyclopropyl]methanamine CAS 2228374-85-2|2-{[3-(Difluoromethoxy)-4-methylphenyl]methyl}pyrrolidine CAS 2228740-28-9|[1-(4-fluoro-1H-indol-3-yl)-2,2-dimethylcyclopropyl]methanol CAS 856794-90-6|Methyl({[4-(propan-2-yloxy)phenyl]methyl})aminehydrochloride CAS 2229302-38-7|2-(2,3-dihydro-1H-inden-4-yl)acetaldehyde CAS 2228290-08-0|[1-(3-Fluoro-5-methylphenyl)cyclobutyl]methanol CAS 2229689-60-3|3-(1-Benzylpyrrolidin-2-yl)prop-2-en-1-ol CAS 2172498-99-4|2,2,3-Trifluoro-3-(pyrimidin-5-yl)propanoic acid CAS 2171909-59-2|2,2,3-trifluoro-3-(1-methyl-1H-imidazol-2-yl)propanoic acid CAS 2172530-99-1|2,2,3-Trifluoro-5,5-dimethylhexanoic acid CAS 2172581-92-7|2,2-Difluoro-3-hydroxy-3-(2-methylcyclopropyl)propanoic acid CAS 2171909-50-3|3-(1-ethyl-1H-pyrrol-2-yl)-2,2-difluoro-3-hydroxypropanoic acid CAS 2172093-76-2|3-(1-ethyl-1H-pyrazol-3-yl)-2,2-difluoro-3-hydroxypropanoic acid CAS 2172498-56-3|2-(Propan-2-yl)-6-propylquinazolin-4-amine CAS 2172498-44-9|6-Chloro-2,8-dimethylquinazolin-4-amine CAS 2172581-17-6|7-Bromo-2-(3-methylbutyl)quinazolin-4-amine CAS 2171903-00-5|2-{1-[2-(dimethylamino)ethyl]-5-(oxolan-3-yl)-1H-1,2,3-triazol-4-yl}ethan-1-amine CAS 2171902-92-2|2-[1-(3-methylbutyl)-5-(oxolan-3-yl)-1H-1,2,3-triazol-4-yl]ethan-1-amine CAS 2172060-35-2|2-[1-(3-methoxypropyl)-5-(oxolan-3-yl)-1H-1,2,3-triazol-4-yl]ethan-1-amine CAS 2172093-14-8|2-[5-(cyclopropylmethyl)-1-(1,1,1-trifluoropropan-2-yl)-1H-1,2,3-triazol-4-yl]ethan CAS 2172060-22-7|{[1-(butan-2-yl)-5-propyl-1H-1,2,3-triazol-4-yl]methyl}(methyl)amine CAS 2172093-01-3|{[1-(2-methoxyethyl)-5-propyl-1H-1,2,3-triazol-4-yl]methyl}(methyl)amine CAS 2171908-85-1|{[5-(methoxymethyl)-1-(3-methylbutan-2-yl)-1H-1,2,3-triazol-4-yl]methyl}(methyl)ami CAS 2171908-90-8|{[1-(2-cyclobutylethyl)-5-(methoxymethyl)-1H-1,2,3-triazol-4-yl]methyl}(methyl)amin CAS 2171911-36-5|{[1-cyclopentyl-5-(methoxymethyl)-1H-1,2,3-triazol-4-yl]methyl}(methyl)amine CAS 2172530-74-2|{[5-(methoxymethyl)-1-(2-methylcyclopropyl)-1H-1,2,3-triazol-4-yl]methyl}(methyl)am CAS 2172060-15-8|{[1-(2-ethoxyethyl)-5-(methoxymethyl)-1H-1,2,3-triazol-4-yl]methyl}(methyl)amine CAS 2172452-54-7|4-(1-Hydroxy-2,3-dimethylbutan-2-yl)-1-methylazepan-4-ol CAS 2172059-96-8|3-(1-Hydroxy-2,3-dimethylbutan-2-yl)azetidin-3-ol CAS 2171908-62-4|3-(1-Hydroxy-2,3-dimethylbutan-2-yl)thian-3-ol CAS 2172530-62-8|{[1-cyclohexyl-5-(methoxymethyl)-1H-1,2,3-triazol-4-yl]methyl}(methyl)amine CAS 2172580-50-4|1-Ethyl-4-(1-hydroxy-2,3-dimethylbutan-2-yl)piperidin-4-ol CAS 2172530-37-7|4-Ethyl-1-(1-hydroxy-2,3-dimethylbutan-2-yl)cyclohexan-1-ol CAS 2172530-12-8|5-ethyl-1-(4-hydroxypentyl)-1H-1,2,3-triazole-4-carboxamide CAS 2171911-03-6|1-(1-Hydroxy-2,3-dimethylbutan-2-yl)-4-methylcyclohexan-1-ol CAS 2172092-92-9|4-(Hydroxymethyl)-4-(4-hydroxythian-4-yl)-1lambda6-thiane-1,1-dione CAS 2172451-96-4|1-(2-cyclopropyl-2-hydroxyethyl)-5-ethyl-1H-1,2,3-triazole-4-carboxamide CAS 2172539-68-1|4-(Hydroxymethyl)-4-(2-hydroxypropan-2-yl)-1lambda6-thiane-1,1-dione CAS 2171908-37-3|4-(Hydroxymethyl)-4-(3-hydroxypentan-3-yl)-1lambda6-thiane-1,1-dione CAS 2171908-23-7|5-ethyl-1-(3-methylbutan-2-yl)-1H-1,2,3-triazole-4-carboxamide CAS 2172497-90-2|5-ethyl-1-(3-hydroxybutan-2-yl)-1H-1,2,3-triazole-4-carboxamide CAS 2171910-70-4|1-[2-(dimethylamino)ethyl]-5-ethyl-1H-1,2,3-triazole-4-carboxamide CAS 2172580-19-5|5-ethyl-1-(4-hydroxybutyl)-1H-1,2,3-triazole-4-carboxamide CAS 2172588-61-1|5-ethyl-1-hexyl-1H-1,2,3-triazole-4-carboxamide CAS 2172539-51-2|5-ethyl-1-(1-methoxybutan-2-yl)-1H-1,2,3-triazole-4-carboxamide CAS 2172451-80-6|5-ethyl-1-(3-methoxypropyl)-1H-1,2,3-triazole-4-carboxamide CAS 2171901-90-7|5-ethyl-1-(2-hydroxyethyl)-1H-1,2,3-triazole-4-carboxamide CAS 2172073-33-3|5-ethyl-1-(2-hydroxypropyl)-1H-1,2,3-triazole-4-carboxamide CAS 2171910-64-6|5-ethyl-1-(oxolan-2-ylmethyl)-1H-1,2,3-triazole-4-carboxamide CAS 2171578-15-5|Tert-butyl 2-(sulfamoylmethyl)-1,4-dioxa-8-azaspiro[5.5]undecane-8-carboxylate CAS 2172588-28-0|[6-Ethyl-6-(trifluoromethyl)-1,4-dioxan-2-yl]methanesulfonyl chloride CAS 2172595-30-9|[6-(Difluoromethyl)-6-methyl-1,4-dioxan-2-yl]methanesulfonyl chloride CAS 2172459-73-1|Spiro[bicyclo[2.2.2]octane-2,2'-[1,4]dioxane]-6'-ylmethanesulfonyl chloride CAS 2172588-55-3|5-propyl-1-(1,1,1-trifluoropropan-2-yl)-1H-1,2,3-triazole-4-carboxamide
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