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
3-{[(Tert-butoxy)carbonyl]amino}-4-sulfanylbutanoic acid 2137800-11-2
2-[(2S)-2-(trifluoromethyl)-1,3-thiazolidin-4-yl]acetic acid 2137417-91-3
2-[(4R)-4-(tert-butoxy)pyrrolidin-2-yl]acetic acid 2137419-19-1
2-(2-Methoxy-1,3-thiazol-5-yl)prop-2-en-1-amine 2228192-84-3
1-Amino-3-(2-ethylcyclopropyl)propan-2-one 2137707-33-4
3a,6a-Dihydro-5-(4-methylphenyl)pyrrolo[3,4-c]pyrazole-4,6(3H,5H)-dione 2997-64-0
2-Pyrrolidinemethanamine, 1-[(2,5-dibromo-4-fluorophenyl)methyl]-, (R)- 137530-07-5
1-[4-(But-3-yn-2-yl)phenyl]pyrrolidine 2228179-88-0
1-[4-(2,2,2-Trifluoroacetamido)phenyl]cyclohexane-1-carboxylic acid 2680800-89-7
tert-butyl N-benzyl-N-(4,6-dimethyl-2-oxoheptyl)carbamate 2138027-58-2
tert-butyl N-benzyl-N-(2-oxohept-6-yn-1-yl)carbamate 2137588-48-6
Methyl 2-(2-bromoethenyl)-3-fluorobenzoate 2138805-71-5
3-(2-Chlorophenyl)-1-(2,2,2-trifluoroacetyl)pyrrolidine-3-carboxylic acid 2680676-38-2
N-(2-Hydroxy-5-methylphenyl)-3-(5-methyl-2-benzoxazolyl)-2-propenamide 17121-44-7
1-(Benzylamino)-3-[(propan-2-yloxy)methyl]but-3-en-2-one 2137595-06-1
(3S)-3-hydroxy-3-(isoquinolin-5-yl)propanoic acid 2227898-67-9
tert-butyl N-(4-chloro-5-formyl-1-phenyl-1H-imidazol-2-yl)carbamate 2680826-76-8
tert-butyl N-[4-bromo-3-(difluoromethyl)phenyl]carbamate 2680700-18-7
benzyl N-(5-bromopyrimidin-2-yl)-N-methylcarbamate 2680665-76-1
benzyl N-(5-bromo-6-methylpyrimidin-4-yl)carbamate 2680895-55-8
1-Naphthalenecarboxylic acid, 2,6-diamino-4-fluoro-5,6,7,8-tetrahydro- 1337153-82-8
5-(2,2,2-Trifluoroacetamido)-2-(2,2,2-trifluoroethyl)-1,3-thiazole-4-carboxylic acid 2680747-06-0
N-Cyclobutyl-2-iodo-6-methylbenzamide 2144725-57-3
2-[(2S)-3-[(tert-butoxy)carbonyl]-2-(trifluoromethyl)-1,3-thiazolidin-4-yl]acetic acid 2137417-95-7
2-[(4S)-1-[(tert-butoxy)carbonyl]-4-hydroxypyrrolidin-2-yl]acetic acid 2137426-37-8
2-(4-formyl-3-methyl-1H-pyrazol-1-yl)butanoic acid 2137819-06-6
Methyl 3-(ethylamino)-2-hydroxy-2-(trifluoromethyl)propanoate 2137739-36-5
2-Cyclopentylethane-1-sulfonyl fluoride 2138240-18-1
Methyl 3-(cyclopropylamino)-2-hydroxy-2-(trifluoromethyl)propanoate 2137878-97-6
2,6-Difluoro-4-nitrobenzene-1-sulfonyl fluoride 2137729-40-7
4,5-Dimethyl-2-(propan-2-yl)-6-(trifluoromethyl)pyridine-3-carboxylic acid 2137916-52-8
3-[(Propylamino)methyl]azepan-2-one 2137749-39-2
Tert-butyl (5-bromo-4-fluoro-2-formylphenyl)carbamate 2763258-40-6
2-[1-(1-methyl-1H-indol-6-yl)cyclopropyl]ethan-1-amine 2229283-31-0
3-[(azetidin-3-yl)methyl]-4-(oxan-4-yl)-4H-1,2,4-triazole 2748190-87-4
3-({3-[(azetidin-3-yl)methyl]-4H-1,2,4-triazol-4-yl}methyl)pyridine 2749296-87-3
3-[(azetidin-3-yl)methyl]-4-[(4-bromophenyl)methyl]-4H-1,2,4-triazole 2749877-69-6
3-Amino-3-(2,2,3,3-tetramethylcyclopropyl)cyclobutan-1-ol 2229440-04-2
7-(2,4-dioxo-1,3-diazinan-1-yl)-1H-indazole-3-carbaldehyde 2925089-81-0
3-[(azetidin-3-yl)methyl]-4-(1-phenylethyl)-4H-1,2,4-triazole 2749763-02-6
3-[(azetidin-3-yl)methyl]-4-[(2,6-difluorophenyl)methyl]-4H-1,2,4-triazole 2748373-26-2
3-[(4-butyl-4H-1,2,4-triazol-3-yl)methyl]piperidine 2749883-97-2
3-((4-(sec-Butyl)-4H-1,2,4-triazol-3-yl)methyl)piperidine 2749749-66-2
2-(3-(Piperidin-3-ylmethyl)-4H-1,2,4-triazol-4-yl)ethan-1-ol 2749884-05-5
1-ethyl-1H-pyrazole-5-sulfonyl fluoride 2138273-90-0
3-{3-[(piperidin-3-yl)methyl]-4H-1,2,4-triazol-4-yl}propan-1-ol 2748373-43-3
1-(2-Ethynylphenyl)-3-(2-methylpropyl)urea 2137635-69-7
3-Methoxy-2-methylpropane-1-sulfinamide 2138349-06-9
3-(1,3-Oxazol-4-yl)prop-2-ynoic acid 2137732-59-1
1-(but-2-en-1-yl)-1H-imidazol-4-amine 2138823-81-9

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