CAS号查询库

CAS号是公开的化学物质信息的最权威的集合。CAS号涵盖从1957年至今的科学文献中确定的物质，其他物质可追溯到20世纪初。它也称CAS编号(CAS Registry Number，或称CAS Number，CAS Rn，CAS #)，又称CAS登录号或CAS登记号码，是某种物质(化合物、高分子材料、生物序列(Biological sequences)、混合物或合金)的唯一的数字识别号码。美国化学会的下设组织化学文摘社(Chemical Abstracts Service，简称CAS)负责为每一种出现在文献中的物质分配一个CAS编号，其目的是为了避免化学物质有多种名称的麻烦，使数据库的检索更为方便。如今几乎所有的化学数据库都允许用CAS编号检索。

名称	英文名	物理化学性质	CAS号	分子式
4-Bromo-1-methyl-5-phenyl-3-(trifluoromethyl)pyrazole	4-Bromo-1-methyl-5-phenyl-3-(trifluoromethyl)pyrazole	分子量：305.09 密度：N/A 沸点：N/A 熔点：N/A	1057659-73-0	C₁₁H₈BrF₃N₂
(3,3-Difluoro-1-methylcyclobutyl)methanamine	(3,3-Difluoro-1-methylcyclobutyl)methanamine	分子量：135.15 密度：N/A 沸点：N/A 熔点：N/A	1438241-16-7	C₆H₁₁F₂N
Tert-butyl 4-(((tert-butyldiphenylsilyl)oxy)methyl)-3-azabicyclo[4.1.0]heptane-3-carboxylate	Tert-butyl 4-(((tert-butyldiphenylsilyl)oxy)methyl)-3-azabicyclo[4.1.0]heptane-3-carboxylate	分子量：465.7 密度：N/A 沸点：N/A 熔点：N/A	1417743-34-0	C₂₈H₃₉NO₃Si
N-allyl-N-(1-((tert-butyldiphenylsilyl)oxy)pent-4-en-2-yl)-4-methylbenzenesulfonamide	N-allyl-N-(1-((tert-butyldiphenylsilyl)oxy)pent-4-en-2-yl)-4-methylbenzenesulfonamide	分子量：533.8 密度：N/A 沸点：N/A 熔点：N/A	1417743-30-6	C₃₁H₃₉NO₃SSi
(2R)-1-[4-(1,2-oxazol-5-yl)phenyl]propan-2-ol	(2R)-1-[4-(1,2-oxazol-5-yl)phenyl]propan-2-ol	分子量：203.24 密度：N/A 沸点：N/A 熔点：N/A	1432620-19-3	C₁₂H₁₃NO₂
2-Benzyloxycarbonylamino-5-[3-(9H-fluoren-9-ylmethoxycarbonylamino)-propyl]-benzoic acid methyl ester	2-Benzyloxycarbonylamino-5-[3-(9H-fluoren-9-ylmethoxycarbonylamino)-propyl]-benzoic acid methyl ester	分子量：564.6 密度：N/A 沸点：N/A 熔点：N/A	1427502-24-6	C₃₄H₃₂N₂O₆
4-Amino-2-cyclopropoxy-N,N-dimethylbenzamide	4-Amino-2-cyclopropoxy-N,N-dimethylbenzamide	分子量：220.27 密度：N/A 沸点：N/A 熔点：N/A	1243311-70-7	C₁₂H₁₆N₂O₂
2,3-diamino-N-(4-fluoro-3-(trifluoromethyl)phenyl)benzamide	2,3-diamino-N-(4-fluoro-3-(trifluoromethyl)phenyl)benzamide	分子量：313.25 密度：N/A 沸点：N/A 熔点：N/A	1421933-30-3	C₁₄H₁₁F₄N₃O
1-(2-Fluoro-5-methylpyridin-3-yl)ethanamine	1-(2-Fluoro-5-methylpyridin-3-yl)ethanamine	分子量：154.18 密度：N/A 沸点：N/A 熔点：N/A	1337159-71-3	C₈H₁₁FN₂
4-Bromo-3-cyclopropoxy-N-methylpicolinamide	4-Bromo-3-cyclopropoxy-N-methylpicolinamide	分子量：271.11 密度：N/A 沸点：N/A 熔点：N/A	1243476-41-6	C₁₀H₁₁BrN₂O₂
tert-Butyl 2-((2-cyanobenzyl)carbamoyl)piperidine-1-carboxylate	tert-Butyl 2-((2-cyanobenzyl)carbamoyl)piperidine-1-carboxylate	分子量：343.4 密度：N/A 沸点：N/A 熔点：N/A	1420788-26-6	C₁₉H₂₅N₃O₃
tert-Butyl 2-(3-(2-oxo-2-(pyridin-2-yl)ethoxy)propyl)piperidine-1-carboxylate	tert-Butyl 2-(3-(2-oxo-2-(pyridin-2-yl)ethoxy)propyl)piperidine-1-carboxylate	分子量：362.5 密度：N/A 沸点：N/A 熔点：N/A	1420971-22-7	C₂₀H₃₀N₂O₄
3-[(3-chloro-4-fluorophenyl)sulfonyl]-8-methoxy-4H-pyrimido[2,1-b][1,3]benzothiazol-4-one	3-[(3-chloro-4-fluorophenyl)sulfonyl]-8-methoxy-4H-pyrimido[2,1-b][1,3]benzothiazol-4-one	分子量：424.9 密度：N/A 沸点：N/A 熔点：N/A	1982158-93-9	C₁₇H₁₀ClFN₂O₄S₂
methyl (2Z)-3-anilino-2-[(4-tert-butylphenyl)sulfonyl]acrylate	methyl (2Z)-3-anilino-2-[(4-tert-butylphenyl)sulfonyl]acrylate	分子量：373.5 密度：N/A 沸点：N/A 熔点：N/A	1327171-82-3	C₂₀H₂₃NO₄S
Tert-butyl ((1-(pyrimidin-2-yl)piperidin-2-yl)methyl)carbamate	Tert-butyl ((1-(pyrimidin-2-yl)piperidin-2-yl)methyl)carbamate	分子量：292.38 密度：N/A 沸点：N/A 熔点：N/A	1420889-55-9	C₁₅H₂₄N₄O₂
4-((2-Oxo-1,2,3,4-tetrahydroquinolin-7-yl)oxy)butyl methanesulfonate	4-((2-Oxo-1,2,3,4-tetrahydroquinolin-7-yl)oxy)butyl methanesulfonate	分子量：313.37 密度：N/A 沸点：N/A 熔点：N/A	952308-48-4	C₁₄H₁₉NO₅S
trimethyl-(5-methyl-1H-indazol-7-yl)silane	trimethyl-(5-methyl-1H-indazol-7-yl)silane	分子量：204.34 密度：N/A 沸点：N/A 熔点：N/A	1426579-40-9	C₁₁H₁₆N₂Si
2-(benzo[d]thiazol-2-ylthio)-N-(2-(imidazo[1,2-a]pyridin-2-yl)phenyl)acetamide	2-(benzo[d]thiazol-2-ylthio)-N-(2-(imidazo[1,2-a]pyridin-2-yl)phenyl)acetamide	分子量：416.5 密度：N/A 沸点：N/A 熔点：N/A	1798487-71-4	C₂₂H₁₆N₄OS₂
3-(1-Aminoethyl)-4-nitrophenol	3-(1-Aminoethyl)-4-nitrophenol	分子量：182.18 密度：N/A 沸点：N/A 熔点：N/A	1336955-07-7	C₈H₁₀N₂O₃
N-(4-chlorobenzyl)-1,1,1-trifluoro-N-methylmethanamine	N-(4-chlorobenzyl)-1,1,1-trifluoro-N-methylmethanamine	分子量：223.62 密度：N/A 沸点：N/A 熔点：N/A	1420898-93-6	C₉H₉ClF₃N
1-(4-(6-(1H-1,2,4-triazol-1-yl)pyrimidin-4-yl)piperazin-1-yl)-2-phenylethanone	1-(4-(6-(1H-1,2,4-triazol-1-yl)pyrimidin-4-yl)piperazin-1-yl)-2-phenylethanone	分子量：349.4 密度：N/A 沸点：N/A 熔点：N/A	1798515-25-9	C₁₈H₁₉N₇O
Tert-butyl ((1-((2-bromopyridin-4-yl)methyl)piperidin-3-yl)methyl)carbamate	Tert-butyl ((1-((2-bromopyridin-4-yl)methyl)piperidin-3-yl)methyl)carbamate	分子量：384.3 密度：N/A 沸点：N/A 熔点：N/A	1420868-28-5	C₁₇H₂₆BrN₃O₂
Tert-butyl ((1-((3-(bromomethyl)phenyl)sulfonyl)piperidin-3-yl)methyl)carbamate	Tert-butyl ((1-((3-(bromomethyl)phenyl)sulfonyl)piperidin-3-yl)methyl)carbamate	分子量：447.4 密度：N/A 沸点：N/A 熔点：N/A	1420839-57-1	C₁₈H₂₇BrN₂O₄S
Tert-butyl ((1-((2-chloro-6-fluorobenzyl)sulfonyl)piperidin-3-yl)methyl)carbamate	Tert-butyl ((1-((2-chloro-6-fluorobenzyl)sulfonyl)piperidin-3-yl)methyl)carbamate	分子量：420.9 密度：N/A 沸点：N/A 熔点：N/A	1420966-75-1	C₁₈H₂₆ClFN₂O₄S
(4-(6-(1H-1,2,4-triazol-1-yl)pyrimidin-4-yl)piperazin-1-yl)(4-(1H-pyrrol-1-yl)phenyl)methanone	(4-(6-(1H-1,2,4-triazol-1-yl)pyrimidin-4-yl)piperazin-1-yl)(4-(1H-pyrrol-1-yl)phenyl)methanone	分子量：400.4 密度：N/A 沸点：N/A 熔点：N/A	1795297-14-1	C₂₁H₂₀N₈O
N-(2-methoxy-2-(o-tolyl)ethyl)thiophene-2-carboxamide	N-(2-methoxy-2-(o-tolyl)ethyl)thiophene-2-carboxamide	分子量：275.4 密度：N/A 沸点：N/A 熔点：N/A	1797641-02-1	C₁₅H₁₇NO₂S
N-(2-(imidazo[2,1-b]thiazol-6-yl)phenyl)-1-methyl-1H-pyrazole-4-sulfonamide	N-(2-(imidazo[2,1-b]thiazol-6-yl)phenyl)-1-methyl-1H-pyrazole-4-sulfonamide	分子量：359.4 密度：N/A 沸点：N/A 熔点：N/A	1798546-53-8	C₁₅H₁₃N₅O₂S₂
4-(4-((2,3-dihydrobenzofuran-5-yl)sulfonyl)piperazin-1-yl)-6-(1H-1,2,4-triazol-1-yl)pyrimidine	4-(4-((2,3-dihydrobenzofuran-5-yl)sulfonyl)piperazin-1-yl)-6-(1H-1,2,4-triazol-1-yl)pyrimidine	分子量：413.5 密度：N/A 沸点：N/A 熔点：N/A	1798517-01-7	C₁₈H₁₉N₇O₃S
2,3-dichloro-N-propylaniline hydrochloride	2,3-dichloro-N-propylaniline hydrochloride	分子量：240.6 密度：N/A 沸点：N/A 熔点：N/A	1803601-63-9	C₉H₁₂Cl₃N
di-tert-butyl ((3R,5S)-1-(4-methoxybenzyl)piperidine-3,5-diyl)dicarbamate	di-tert-butyl ((3R,5S)-1-(4-methoxybenzyl)piperidine-3,5-diyl)dicarbamate	分子量：435.6 密度：N/A 沸点：N/A 熔点：N/A	1487317-12-3	C₂₃H₃₇N₃O₅
3-Amino-2-methyl-N-((R)-1-phenylethyl)propanamide	3-Amino-2-methyl-N-((R)-1-phenylethyl)propanamide	分子量：206.28 密度：N/A 沸点：N/A 熔点：N/A	1344972-95-7	C₁₂H₁₈N₂O
1-(8-Isopropyl-2,8-diazaspiro[4.5]decan-2-yl)ethanone	1-(8-Isopropyl-2,8-diazaspiro[4.5]decan-2-yl)ethanone	分子量：224.34 密度：N/A 沸点：N/A 熔点：N/A	1420841-07-1	C₁₃H₂₄N₂O
4-((1-(3-(4-fluorophenoxy)benzoyl)azetidin-3-yl)oxy)-6-methyl-2H-pyran-2-one	4-((1-(3-(4-fluorophenoxy)benzoyl)azetidin-3-yl)oxy)-6-methyl-2H-pyran-2-one	分子量：395.4 密度：N/A 沸点：N/A 熔点：N/A	1798639-63-0	C₂₂H₁₈FNO₅
2-Tert-butyl-5-cyclopropoxy-3-isopropoxypyridine	2-Tert-butyl-5-cyclopropoxy-3-isopropoxypyridine	分子量：249.35 密度：N/A 沸点：N/A 熔点：N/A	1243327-34-5	C₁₅H₂₃NO₂
N-isopropylpyrazine-2-sulfonamide	N-isopropylpyrazine-2-sulfonamide	分子量：201.25 密度：N/A 沸点：N/A 熔点：N/A	1420850-79-8	C₇H₁₁N₃O₂S
4-acetamido-N-(2-amino-4-(trifluoromethyl)phenyl)benzamide	4-acetamido-N-(2-amino-4-(trifluoromethyl)phenyl)benzamide	分子量：337.30 密度：N/A 沸点：N/A 熔点：N/A	1550053-57-0	C₁₆H₁₄F₃N₃O₂
4-(Acetylamino)-N-(2-amino-6-fluorophenyl)benzamide	4-(Acetylamino)-N-(2-amino-6-fluorophenyl)benzamide	分子量：287.29 密度：N/A 沸点：N/A 熔点：N/A	1550053-26-3	C₁₅H₁₄FN₃O₂
4-(Acetylamino)-N-(2-amino-5-bromophenyl)benzamide	4-(Acetylamino)-N-(2-amino-5-bromophenyl)benzamide	分子量：348.19 密度：N/A 沸点：N/A 熔点：N/A	1550053-34-3	C₁₅H₁₄BrN₃O₂
1-(Quinolin-7-yl)ethanamine	1-(Quinolin-7-yl)ethanamine	分子量：172.23 密度：N/A 沸点：N/A 熔点：N/A	151506-21-7	C₁₁H₁₂N₂
Cyclopropanecarboxylic acid,1-(4-hydroxy-1h-indol-5-yl)-	Cyclopropanecarboxylic acid,1-(4-hydroxy-1h-indol-5-yl)-	分子量：217.22 密度：N/A 沸点：N/A 熔点：N/A	1314724-03-2	C₁₂H₁₁NO₃
(1-(1-(1H-pyrrol-2-yl)ethyl)azetidin-3-yl)methanol	(1-(1-(1H-pyrrol-2-yl)ethyl)azetidin-3-yl)methanol	分子量：180.25 密度：N/A 沸点：N/A 熔点：N/A	1420823-01-3	C₁₀H₁₆N₂O
(3R)-1-(1-(pyridin-2-yl)ethyl)piperidin-3-ol	(3R)-1-(1-(pyridin-2-yl)ethyl)piperidin-3-ol	分子量：206.28 密度：N/A 沸点：N/A 熔点：N/A	1421054-74-1	C₁₂H₁₈N₂O
(3E,5E)-6-[(3S,5R,6S,8R,9R,10R,12R,13R,14R,17S)-3,6,12-trihydroxy-4,4,8,10,14-pentamethyl-2,3,5,6,7,9,11,12,13,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl]hepta-3,5-dien-2-one	(3E,5E)-6-[(3S,5R,6S,8R,9R,10R,12R,13R,14R,17S)-3,6,12-trihydroxy-4,4,8,10,14-pentamethyl-2,3,5,6,7,9,11,12,13,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl]hepta-3,5-dien-2-one	分子量：458.7 密度：N/A 沸点：N/A 熔点：N/A	1520093-57-5	C₂₉H₄₆O₄
4-(Acetylamino)-N-(2-aminophenyl)-2-fluorobenzamide	4-(Acetylamino)-N-(2-aminophenyl)-2-fluorobenzamide	分子量：287.29 密度：N/A 沸点：N/A 熔点：N/A	1550053-44-5	C₁₅H₁₄FN₃O₂
2-[[3-(2-methylphenyl)-7-oxo-2-sulfanylidene-4,5,6,7a-tetrahydro-3aH-[1,3]thiazolo[4,5-d]pyrimidin-5-yl]sulfanyl]-N-(4-phenylbutan-2-yl)acetamide	2-[[3-(2-methylphenyl)-7-oxo-2-sulfanylidene-4,5,6,7a-tetrahydro-3aH-[1,3]thiazolo[4,5-d]pyrimidin-5-yl]sulfanyl]-N-(4-phenylbutan-2-yl)acetamide	分子量：500.7 密度：N/A 沸点：N/A 熔点：N/A	1021251-54-6	C₂₄H₂₈N₄O₂S₃
N-(furan-2-ylmethyl)-2-[[3-(2-methylphenyl)-7-oxo-2-sulfanylidene-4,5,6,7a-tetrahydro-3aH-[1,3]thiazolo[4,5-d]pyrimidin-5-yl]sulfanyl]acetamide	N-(furan-2-ylmethyl)-2-[[3-(2-methylphenyl)-7-oxo-2-sulfanylidene-4,5,6,7a-tetrahydro-3aH-[1,3]thiazolo[4,5-d]pyrimidin-5-yl]sulfanyl]acetamide	分子量：448.6 密度：N/A 沸点：N/A 熔点：N/A	1021215-52-0	C₁₉H₂₀N₄O₃S₃
Fimaporfin C	Fimaporfin C	分子量：776.9 密度：N/A 沸点：N/A 熔点：N/A	1421945-02-9	C₄₄H₃₂N₄O₆S₂
4-cyano-N-cyclobutylpyrrolidine-2-carboxamide	4-cyano-N-cyclobutylpyrrolidine-2-carboxamide	分子量：193.25 密度：N/A 沸点：N/A 熔点：N/A	1073556-41-8	C₁₀H₁₅N₃O
2-[[3-(2-methylphenyl)-7-oxo-2-sulfanylidene-4,5,6,7a-tetrahydro-3aH-[1,3]thiazolo[4,5-d]pyrimidin-5-yl]sulfanyl]-N-(2,4,6-trimethylphenyl)acetamide	2-[[3-(2-methylphenyl)-7-oxo-2-sulfanylidene-4,5,6,7a-tetrahydro-3aH-[1,3]thiazolo[4,5-d]pyrimidin-5-yl]sulfanyl]-N-(2,4,6-trimethylphenyl)acetamide	分子量：486.7 密度：N/A 沸点：N/A 熔点：N/A	1021251-56-8	C₂₃H₂₆N₄O₂S₃
N-(2,5-difluorophenyl)-2-[[3-(2-methylphenyl)-7-oxo-2-sulfanylidene-4,5,6,7a-tetrahydro-3aH-[1,3]thiazolo[4,5-d]pyrimidin-5-yl]sulfanyl]acetamide	N-(2,5-difluorophenyl)-2-[[3-(2-methylphenyl)-7-oxo-2-sulfanylidene-4,5,6,7a-tetrahydro-3aH-[1,3]thiazolo[4,5-d]pyrimidin-5-yl]sulfanyl]acetamide	分子量：480.6 密度：N/A 沸点：N/A 熔点：N/A	1021215-57-5	C₂₀H₁₈F₂N₄O₂S₃