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 2228659-47-8|3,3-difluoro-3-(4-nitro-1H-pyrazol-3-yl)propan-1-ol CAS 2229533-17-7|2,2-Difluoro-2-(2-hydroxynaphthalen-1-yl)acetic acid CAS 2228809-89-8|2-(2,4-dimethyl-1H-pyrrol-3-yl)-2,2-difluoroethan-1-ol CAS 2228839-61-8|1-[3-Methoxy-4-(trifluoromethyl)phenyl]prop-2-en-1-ol CAS 2227859-20-1|(2R)-1-[3-methoxy-4-(trifluoromethyl)phenyl]propan-2-ol CAS 2229231-44-9|{1-[3-Methoxy-4-(trifluoromethyl)phenyl]cyclobutyl}methanamine CAS 2648971-70-2|4-(1-Isocyanatoethyl)-2-methoxy-1-(trifluoromethyl)benzene CAS 2228394-94-1|2-[3-Methoxy-4-(trifluoromethyl)phenyl]-2-methylpropan-1-ol CAS 2228659-35-4|3-(3-Chloro-2,4-difluorophenyl)-3,3-difluoropropanoic acid CAS 2228839-55-0|{1-[3-Methoxy-4-(trifluoromethyl)phenyl]cyclopropyl}methanol CAS 2229533-03-1|5-[4-Methyl-3-(trifluoromethyl)phenyl]-1,2-oxazol-4-amine CAS 2228659-20-7|2-[1-(3-Bromo-2-methoxyphenyl)cyclobutyl]ethan-1-amine CAS 2228809-58-1|2-(1-Bromopropan-2-yl)-4-methylphenol CAS 99179-99-4|2-(2-Bromoethyl)-4-methylphenol CAS 2649061-89-0|1-Bromo-3-(2-isocyanatoethyl)-2-methoxybenzene CAS 2168249-65-6|2,2-Difluoro-2-(1-isobutyl-1H-pyrazol-4-yl)acetic acid CAS 2228738-52-9|2-(Heptafluoropropyl)cyclopropane-1-carboxylic acid CAS 2228809-50-3|2,2-Difluoro-1-(4-methoxy-2-methylphenyl)cyclopropan-1-amine CAS 2228495-76-7|1-(Heptafluoropropyl)cyclopropane-1-carbaldehyde CAS 2229177-97-1|1-(Heptafluoropropyl)cyclopentane-1-carboxylic acid CAS 2228569-70-6|2-(Heptafluoropropyl)cyclopropan-1-amine CAS 2227795-52-8|rac-(1R,2R)-2-(heptafluoropropyl)cyclopropane-1-carboxylic acid CAS 2144567-86-0|1,1-Difluoro-2-(4-methoxy-2-methylphenyl)propan-2-amine CAS 2228658-70-4|3-(2,5-Dimethylthiophen-3-yl)-2,2-difluoropropanoic acid CAS 2228139-42-0|[1-(2,5-Dimethylthiophen-3-yl)-2,2-difluorocyclopropyl]methanamine CAS 2228569-62-6|1-(2,5-Dimethylthiophen-3-yl)-2,2-difluorocyclopropane-1-carboxylic acid CAS 2228394-66-7|3-(Dimethyl-1,3-oxazol-2-yl)-1,1-difluoro-2-methylpropan-2-amine CAS 2229231-04-1|1-(Dimethyl-1,3-oxazol-2-yl)-2,2-difluoroethan-1-ol CAS 2229422-25-5|1-(Dimethyl-1,3-oxazol-2-yl)-4,4-difluorocyclohexane-1-carboxylic acid CAS 2228139-36-2|1-(Dimethyl-1,3-oxazol-2-yl)-2,2-difluorocyclopropan-1-amine CAS 2229532-69-6|[1-(Dimethyl-1,3-oxazol-2-yl)-2,2-difluorocyclopropyl]methanamine CAS 2228569-54-6|4,4-Difluoro-3-{7-oxabicyclo[2.2.1]heptan-2-yl}butanoic acid CAS 2229177-78-8|1-(Dimethyl-1,3-oxazol-2-yl)-2,2-difluorocyclopropane-1-carboxylic acid CAS 2229422-16-4|4-Cyclopropyl-1,1,1-trifluoropentan-2-one CAS 2229177-72-2|[1-(2-Cyclopropylpropyl)-2,2-difluorocyclopropyl]methanamine CAS 2228314-91-6|4-Cyclopropyl-2,2-difluoropentan-1-ol CAS 2229230-95-7|2-(3-tert-butyl-1-methyl-1H-pyrazol-4-yl)-2,2-difluoroacetic acid CAS 2228658-38-4|2,2-Difluoro-3-[5-(2-methylcyclopropyl)furan-2-yl]propanoic acid CAS 2229422-08-4|1,1,1-trifluoro-3-(1H-indazol-7-yl)propan-2-amine CAS 2152769-62-3|1-(3-Bromo-2,4-dimethylphenyl)-2,2-difluoroethan-1-ol CAS 2228658-02-2|methyl 5-(1-amino-2,2,2-trifluoroethyl)-1-methyl-1H-pyrrole-2-carboxylate CAS 2229230-85-5|3-Chloro-5-(trifluoromethyl)benzene-1-carboximidamide CAS 2228738-21-2|5-[3-Chloro-5-(trifluoromethyl)phenyl]-1,3-oxazol-2-amine CAS 2228139-20-4|4-[3-(Difluoromethoxy)-4-methylphenyl]-1,3-thiazol-2-amine CAS 2229279-58-5|1-[3-(Difluoromethoxy)-4-methylphenyl]-2,2,2-trifluoroethan-1-one CAS 2229177-59-5|5-[3-(difluoromethoxy)-4-methylphenyl]-1-methyl-1H-pyrazol-4-amine CAS 2228569-23-9|1-{2-[3-(Difluoromethoxy)-4-methylphenyl]propan-2-yl}cyclopropan-1-amine CAS 2228394-46-3|1-[3-(Difluoromethoxy)-4-methylphenyl]-2,2-difluoroethan-1-ol CAS 2228657-94-9|1,1-Difluoro-3-{pyrazolo[1,5-a]pyrimidin-6-yl}propan-2-amine CAS 2228657-87-0|2,2-Difluoro-3-[4-(pyrrolidin-1-yl)phenyl]propanoic acid CAS 2228138-74-5|2,2-Difluoro-2-[4-(pyrrolidin-1-yl)phenyl]ethan-1-ol CAS 2228657-81-4|2-Methyl-2-[3-nitro-5-(trifluoromethyl)phenyl]propan-1-ol CAS 2228809-14-9|4-(1,3-Benzothiazol-2-yl)-1,1,1-trifluorobutan-2-one CAS 2228443-24-9|1-[2-(1,3-Benzothiazol-2-yl)ethyl]-2,2-difluorocyclopropan-1-amine CAS 2649059-52-7|1-(1-Isocyanatoethyl)-3-nitro-5-(trifluoromethyl)benzene CAS 2227737-39-3|(1S)-1-[3-nitro-5-(trifluoromethyl)phenyl]ethan-1-ol CAS 2228839-27-6|1,1-difluoro-3-(1-methyl-1H-indol-3-yl)propan-2-amine CAS 2227859-09-6|(1S)-1-(4-bromofuran-2-yl)-2,2,2-trifluoroethan-1-ol CAS 2227791-72-0|(1R)-1-(4-bromofuran-2-yl)-2,2,2-trifluoroethan-1-ol CAS 2228138-69-8|1-[2-chloro-6-(trifluoromethyl)phenyl]-N-methylcyclopropan-1-amine CAS 2229230-63-9|2-(4-Bromofuran-2-yl)-2,2-difluoroethan-1-amine CAS 2229532-06-1|2-[2-Chloro-6-(trifluoromethyl)phenyl]ethane-1-thiol CAS 2228809-07-0|{1-[2-Chloro-6-(trifluoromethyl)phenyl]-2,2-dimethylcyclopropyl}methanol CAS 2228737-91-3|1,1,1-Trifluoro-3-(2-fluoro-5-nitrophenyl)propan-2-ol CAS 2228839-17-4|3-(But-3-yn-2-yl)-2-(trifluoromethyl)pyridine CAS 2228394-15-6|O-{1-[2-(trifluoromethyl)pyridin-3-yl]ethyl}hydroxylamine CAS 2228813-47-4|3-(1-Bromo-2-methylpropan-2-yl)-2-(trifluoromethyl)pyridine CAS 2229279-43-8|O-{2-methyl-2-[2-(trifluoromethyl)pyridin-3-yl]propyl}hydroxylamine CAS 2228737-89-9|2-Methyl-2-[2-(trifluoromethyl)pyridin-3-yl]propanal CAS 2229421-56-9|3,3-Difluoro-3-[2-(trifluoromethyl)pyridin-3-yl]propan-1-amine CAS 2137554-17-5|2-(2-ethyl-4,4,4-trifluorobutyl)-2H-1,2,3-triazol-4-amine CAS 2228839-07-2|3-Amino-2-[2-(trifluoromethyl)pyridin-3-yl]propanoic acid CAS 2228813-42-9|1-Methyl-2-[2-(trifluoromethyl)pyridin-3-yl]piperazine CAS 2229279-36-9|3-(2,5-Dichloropyridin-4-yl)-4,4-difluorobutanoic acid CAS 2228138-62-1|{1-[2-(Trifluoromethyl)pyridin-3-yl]cyclopentyl}methanamine CAS 2228839-03-8|1-[2-Chloro-5-(trifluoromethyl)pyridin-3-yl]cyclopropan-1-ol CAS 2228394-13-4|3-[2-Chloro-5-(trifluoromethyl)pyridin-3-yl]propanenitrile CAS 1337761-25-7|3-(Azetidin-2-yl)-2-chloro-5-(trifluoromethyl)pyridine CAS 2228138-55-2|3-(2,3-Dihydro-1,4-benzodioxin-2-yl)-4,4-difluorobutanoic acid CAS 2248282-63-3|1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 2-benzamidobenzoate CAS 2227685-39-2|(3R)-3-[2-chloro-5-(trifluoromethyl)phenyl]-3-hydroxypropanoic acid CAS 2228138-46-1|3-[1-methyl-3-(trifluoromethyl)-1H-pyrazol-5-yl]-1,2-oxazol-5-amine CAS 2229531-70-6|2-(6-Chloropyrazin-2-yl)-2,2-difluoroethan-1-ol CAS 2228813-31-6|4-(aminomethyl)-4-[1-methyl-3-(trifluoromethyl)-1H-pyrazol-5-yl]cyclohexan-1-ol CAS 2755723-88-5|4-Bromo-2-(methoxymethoxy)-1-(trifluoromethoxy)benzene CAS 2248322-81-6|1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 3-cyclobutylpentanoate CAS 2138386-84-0|2-(2-cyclobutylpropyl)-2H-1,2,3-triazol-4-amine CAS 2680705-42-2|tert-butyl N-(4-ethynyl-3,5-difluorophenyl)carbamate CAS 2228520-06-5|6-Chloro-2-methoxy-3-(piperidin-3-yloxy)pyridine CAS 2137937-11-0|2-(4-amino-2H-1,2,3-triazol-2-yl)-N-(pentan-2-yl)acetamide CAS 2763993-64-0|benzyl N-[2-(hydroxymethyl)-3,5-dimethylpyridin-4-yl]carbamate CAS 2229664-75-7|4-(3-Bromo-2-methylphenyl)but-3-en-2-amine CAS 2228136-95-4|2-(2-Methylquinolin-4-yl)prop-2-en-1-amine CAS 2229665-55-6|3-(But-1-en-1-yl)-2,2-dimethylcyclopropan-1-amine CAS 2229680-05-9|4-(1-methyl-1H-indol-5-yl)but-3-en-2-amine CAS 2138348-60-2|methyl 4-amino-1-(pent-4-en-1-yl)-1H-pyrrole-2-carboxylate CAS 2755724-78-6|5-Bromo-2-methoxy-N-methylisonicotinamide CAS 2248358-66-7|1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 4-ethyl-1H-imidazole-5-carboxylate CAS 2248333-22-2|1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 3-(1-methyl-1H-pyrazol-4-yl)butanoate CAS 2138803-84-4|Methyl 4-(2-bromoethenyl)-2-methylbenzoate
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