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
tert-butyl N-[3-[4-(3-hydroxypropyl)phenoxy]-3-phenylpropyl]-N-methylcarbamate	tert-butyl N-[3-[4-(3-hydroxypropyl)phenoxy]-3-phenylpropyl]-N-methylcarbamate	分子量：399.5 密度：N/A 沸点：N/A 熔点：N/A	1615654-63-1	C₂₄H₃₃NO₄
(2R,3R)-2-ethylpyrrolidin-3-ol	(2R,3R)-2-ethylpyrrolidin-3-ol	分子量：115.17 密度：N/A 沸点：N/A 熔点：N/A	2580094-47-7	C₆H₁₃NO
(1R)-2-amino-1-(5-bromothiophen-3-yl)ethan-1-ol	(1R)-2-amino-1-(5-bromothiophen-3-yl)ethan-1-ol	分子量：222.11 密度：N/A 沸点：N/A 熔点：N/A	2227801-48-9	C₆H₈BrNOS
Ethyl 6-nitronicotinate	Ethyl 6-nitronicotinate	分子量：196.16 密度：N/A 沸点：N/A 熔点：N/A	1804099-90-8	C₈H₈N₂O₄
trans-1-tert-Butyl 3-methyl 6-methylpiperidine-1,3-dicarboxylate	trans-1-tert-Butyl 3-methyl 6-methylpiperidine-1,3-dicarboxylate	分子量：257.33 密度：N/A 沸点：N/A 熔点：N/A	1613227-97-6	C₁₃H₂₃NO₄
(4-Bromo-2,5-difluorophenyl)(morpholino)methanone	(4-Bromo-2,5-difluorophenyl)(morpholino)methanone	分子量：306.10 密度：N/A 沸点：N/A 熔点：N/A	1613051-41-4	C₁₁H₁₀BrF₂NO₂
tert-butyl N-[1-(N'-hydroxycarbamimidoyl)cyclobutyl]carbamate	tert-butyl N-[1-(N'-hydroxycarbamimidoyl)cyclobutyl]carbamate	分子量：229.28 密度：N/A 沸点：N/A 熔点：N/A	1251924-20-5	C₁₀H₁₉N₃O₃
(3S)-3-hydroxy-3-{1-methyl-1H-pyrrolo[2,3-b]pyridin-3-yl}propanoic acid	(3S)-3-hydroxy-3-{1-methyl-1H-pyrrolo[2,3-b]pyridin-3-yl}propanoic acid	分子量：220.22 密度：N/A 沸点：N/A 熔点：N/A	2227662-10-2	C₁₁H₁₂N₂O₃
1-[6-(Dimethylamino)pyridin-3-yl]cyclobutane-1-carboxylic acid	1-[6-(Dimethylamino)pyridin-3-yl]cyclobutane-1-carboxylic acid	分子量：220.27 密度：N/A 沸点：N/A 熔点：N/A	1511719-39-3	C₁₂H₁₆N₂O₂
1-[1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl]-2-(methylamino)ethan-1-one	1-[1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl]-2-(methylamino)ethan-1-one	分子量：221.18 密度：N/A 沸点：N/A 熔点：N/A	1521338-02-2	C₈H₁₀F₃N₃O
3-amino-1-[1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl]propan-1-one	3-amino-1-[1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl]propan-1-one	分子量：221.18 密度：N/A 沸点：N/A 熔点：N/A	1521940-97-5	C₈H₁₀F₃N₃O
4-(2-Methylpyridin-3-yl)oxane-4-carboxylic acid	4-(2-Methylpyridin-3-yl)oxane-4-carboxylic acid	分子量：221.25 密度：N/A 沸点：N/A 熔点：N/A	1516293-98-3	C₁₂H₁₅NO₃
4-(3-Methylpyridin-2-yl)oxane-4-carboxylic acid	4-(3-Methylpyridin-2-yl)oxane-4-carboxylic acid	分子量：221.25 密度：N/A 沸点：N/A 熔点：N/A	1518179-98-0	C₁₂H₁₅NO₃
1-(6-Methoxypyridin-3-yl)cyclopentane-1-carboxylic acid	1-(6-Methoxypyridin-3-yl)cyclopentane-1-carboxylic acid	分子量：221.25 密度：N/A 沸点：N/A 熔点：N/A	1519277-39-4	C₁₂H₁₅NO₃
1-(2-Methoxypyridin-4-yl)cyclopentane-1-carboxylic acid	1-(2-Methoxypyridin-4-yl)cyclopentane-1-carboxylic acid	分子量：221.25 密度：N/A 沸点：N/A 熔点：N/A	1523647-71-3	C₁₂H₁₅NO₃
1-(2,4-dimethyl-1H-pyrrol-3-yl)cyclohexane-1-carboxylic acid	1-(2,4-dimethyl-1H-pyrrol-3-yl)cyclohexane-1-carboxylic acid	分子量：221.29 密度：N/A 沸点：N/A 熔点：N/A	1517310-52-9	C₁₃H₁₉NO₂
N-[(5-bromothiophen-2-yl)methyl]-N-methylhydroxylamine	N-[(5-bromothiophen-2-yl)methyl]-N-methylhydroxylamine	分子量：222.11 密度：N/A 沸点：N/A 熔点：N/A	1533940-63-4	C₆H₈BrNOS
(2R)-2-amino-2-(5-bromothiophen-3-yl)ethan-1-ol	(2R)-2-amino-2-(5-bromothiophen-3-yl)ethan-1-ol	分子量：222.11 密度：N/A 沸点：N/A 熔点：N/A	1391480-04-8	C₆H₈BrNOS
4-Tert-butyl-2-thiomorpholin-4-ylpyrimidine-5-carboxylic acid	4-Tert-butyl-2-thiomorpholin-4-ylpyrimidine-5-carboxylic acid	分子量：281.38 密度：N/A 沸点：N/A 熔点：N/A	1340689-20-4	C₁₃H₁₉N₃O₂S
Ethyl 6-bromo-1-[(4-methoxyphenyl)methyl]-4-oxoquinoline-3-carboxylate	Ethyl 6-bromo-1-[(4-methoxyphenyl)methyl]-4-oxoquinoline-3-carboxylate	分子量：416.3 密度：N/A 沸点：N/A 熔点：N/A	1248546-11-3	C₂₀H₁₈BrNO₄
3-[[(2,4-Difluorophenyl)methyl]amino]-3,4-dihydro-5-methyl-4-oxothieno[2,3-d]pyrimidine-6-carboxylic acid	3-[[(2,4-Difluorophenyl)methyl]amino]-3,4-dihydro-5-methyl-4-oxothieno[2,3-d]pyrimidine-6-carboxylic acid	分子量：351.3 密度：N/A 沸点：N/A 熔点：N/A	1248551-38-3	C₁₅H₁₁F₂N₃O₃S
1,1-Dimethylethyl 4-[[1-(3-fluorophenyl)-5-(4-pyridinyl)-1H-1,2,3-triazol-4-yl]methyl]-1-piperazinecarboxylate	1,1-Dimethylethyl 4-[[1-(3-fluorophenyl)-5-(4-pyridinyl)-1H-1,2,3-triazol-4-yl]methyl]-1-piperazinecarboxylate	分子量：438.5 密度：N/A 沸点：N/A 熔点：N/A	1248551-75-8	C₂₃H₂₇FN₆O₂
1-[[1-(3,5-Difluorophenyl)-5-(4-pyridinyl)-1H-1,2,3-triazol-4-yl]methyl]-4-piperidinamine	1-[[1-(3,5-Difluorophenyl)-5-(4-pyridinyl)-1H-1,2,3-triazol-4-yl]methyl]-4-piperidinamine	分子量：370.4 密度：N/A 沸点：N/A 熔点：N/A	1248547-00-3	C₁₉H₂₀F₂N₆
(1S)-1-[3-(trifluoromethyl)-1H-pyrazol-4-yl]ethan-1-amine	(1S)-1-[3-(trifluoromethyl)-1H-pyrazol-4-yl]ethan-1-amine	分子量：179.14 密度：N/A 沸点：N/A 熔点：N/A	2227682-72-4	C₆H₈F₃N₃
methyl 2-[(2S)-pyrrolidin-2-yl]-1,3-oxazole-4-carboxylate	methyl 2-[(2S)-pyrrolidin-2-yl]-1,3-oxazole-4-carboxylate	分子量：196.20 密度：N/A 沸点：N/A 熔点：N/A	2348348-04-7	C₉H₁₂N₂O₃
4'-Methyl acetyl fentanyl	4'-Methyl acetyl fentanyl	分子量：336.5 密度：N/A 沸点：N/A 熔点：N/A	90736-15-5	C₂₂H₂₈N₂O
O-Trifluoroacetyl-hexestrol	O-Trifluoroacetyl-hexestrol	分子量：462.4 密度：N/A 沸点：N/A 熔点：N/A	31385-13-4	C₂₂H₂₀F₆O₄
D4Txg9svj2	D4Txg9svj2	分子量：373.5 密度：N/A 沸点：N/A 熔点：N/A	2365471-29-8	C₂₅H₂₄FNO
Tert-butyl 2-(4-(trifluoromethyl)cyclohexyl)acetate	Tert-butyl 2-(4-(trifluoromethyl)cyclohexyl)acetate	分子量：266.30 密度：N/A 沸点：N/A 熔点：N/A	1584139-55-8	C₁₃H₂₁F₃O₂
(2-Amino-3-chlorophenyl)-(3-chlorophenyl)methanone	(2-Amino-3-chlorophenyl)-(3-chlorophenyl)methanone	分子量：266.12 密度：N/A 沸点：N/A 熔点：N/A	1584714-80-6	C₁₃H₉Cl₂NO
2-Amino-3-(4-amino-3,5-dimethylphenyl)propanoic acid dihydrochloride	2-Amino-3-(4-amino-3,5-dimethylphenyl)propanoic acid dihydrochloride	分子量：281.18 密度：N/A 沸点：N/A 熔点：N/A	903509-72-8	C₁₁H₁₈Cl₂N₂O₂
Morpholin-3-ylmethanamine dihydrochloride	Morpholin-3-ylmethanamine dihydrochloride	分子量：189.08 密度：N/A 沸点：N/A 熔点：N/A	1157076-33-9	C₅H₁₄Cl₂N₂O
3-((3,4-Difluorobenzyl)oxy)-piperidine hydrochloride	3-((3,4-Difluorobenzyl)oxy)-piperidine hydrochloride	分子量：263.71 密度：N/A 沸点：N/A 熔点：N/A	745066-70-0	C₁₂H₁₆ClF₂NO
1-(Trans-4-{[7-Oxo-8-(Propan-2-Yl)-7,8-Dihydropyrido[2,3-D]pyrimidin-2-Yl]amino}cyclohexyl)-3-Propan-2-Ylurea	1-(Trans-4-{[7-Oxo-8-(Propan-2-Yl)-7,8-Dihydropyrido[2,3-D]pyrimidin-2-Yl]amino}cyclohexyl)-3-Propan-2-Ylurea	分子量：386.5 密度：N/A 沸点：N/A 熔点：N/A	1673513-04-6	C₂₀H₃₀N₆O₂
cis-Diethylpyrrolidine-2,5-dicarboxylate hydrochloride	cis-Diethylpyrrolidine-2,5-dicarboxylate hydrochloride	分子量：251.71 密度：N/A 沸点：N/A 熔点：N/A	162376-17-2	C₁₀H₁₈ClNO₄
Fosciclopirox disodium	Fosciclopirox disodium	分子量：361.24 密度：N/A 沸点：N/A 熔点：N/A	1380539-08-1	C₁₃H₁₈NNa₂O₆P
1-isobutyl-3-[2-[4-[3-[4-[[4-methyl-1-[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydropyran-2-yl]indol-3-yl]methyl]phenoxy]propyl]-4,9-diazaspiro[5.5]undecan-9-yl]-2-oxo-ethyl]urea	1-isobutyl-3-[2-[4-[3-[4-[[4-methyl-1-[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydropyran-2-yl]indol-3-yl]methyl]phenoxy]propyl]-4,9-diazaspiro[5.5]undecan-9-yl]-2-oxo-ethyl]urea	分子量：749.9 密度：N/A 沸点：N/A 熔点：N/A	1714144-93-0	C₄₁H₅₉N₅O₈
2-(4-oxo-2-((2-oxo-2-(p-tolylamino)ethyl)thio)-7-phenyl-4,5-dihydro-3H-pyrrolo[3,2-d]pyrimidin-3-yl)acetic acid	2-(4-oxo-2-((2-oxo-2-(p-tolylamino)ethyl)thio)-7-phenyl-4,5-dihydro-3H-pyrrolo[3,2-d]pyrimidin-3-yl)acetic acid	分子量：448.5 密度：N/A 沸点：N/A 熔点：N/A	2034275-11-9	C₂₃H₂₀N₄O₄S
Tert-butyl 4-(prop-2-enoyl)piperidine-1-carboxylate	Tert-butyl 4-(prop-2-enoyl)piperidine-1-carboxylate	分子量：239.31 密度：N/A 沸点：N/A 熔点：N/A	1553928-45-2	C₁₃H₂₁NO₃
Ethyl (2E)-4-(4-fluorophenyl)but-2-enoate	Ethyl (2E)-4-(4-fluorophenyl)but-2-enoate	分子量：208.23 密度：N/A 沸点：N/A 熔点：N/A	1105703-74-9	C₁₂H₁₃FO₂
N-Methoxy-N-methyl-2-phenyl-4-oxazolecarboxamide	N-Methoxy-N-methyl-2-phenyl-4-oxazolecarboxamide	分子量：232.23 密度：N/A 沸点：N/A 熔点：N/A	1620840-43-8	C₁₂H₁₂N₂O₃
1-(Naphthalen-1-yl)-9H-pyrido[3,4-b]indole	1-(Naphthalen-1-yl)-9H-pyrido[3,4-b]indole	分子量：294.3 密度：N/A 沸点：N/A 熔点：N/A	16765-75-6	C₂₁H₁₄N₂
(Z)-3-[3,4-Bis(phenylmethoxy)phenyl]-2-cyano-N-(3-ethoxypropyl)prop-2-enamide	(Z)-3-[3,4-Bis(phenylmethoxy)phenyl]-2-cyano-N-(3-ethoxypropyl)prop-2-enamide	分子量：470.6 密度：N/A 沸点：N/A 熔点：N/A	732289-01-9	C₂₉H₃₀N₂O₄
Ethyl 4-[[(Z)-3-(4-chlorophenyl)-2-cyanoprop-2-enoyl]amino]benzoate	Ethyl 4-[[(Z)-3-(4-chlorophenyl)-2-cyanoprop-2-enoyl]amino]benzoate	分子量：354.8 密度：N/A 沸点：N/A 熔点：N/A	341927-74-0	C₁₉H₁₅ClN₂O₃
(1R)-3-amino-1-(1H-pyrrol-2-yl)propan-1-ol	(1R)-3-amino-1-(1H-pyrrol-2-yl)propan-1-ol	分子量：140.18 密度：N/A 沸点：N/A 熔点：N/A	2227809-42-7	C₇H₁₂N₂O
(S)-2-(Azetidin-2-yl)-5-fluoro-3-phenylpyrrolo[2,1-f][1,2,4]triazin-4(3H)-one	(S)-2-(Azetidin-2-yl)-5-fluoro-3-phenylpyrrolo[2,1-f][1,2,4]triazin-4(3H)-one	分子量：284.29 密度：N/A 沸点：N/A 熔点：N/A	1548942-77-3	C₁₅H₁₃FN₄O
(S)-5-Fluoro-2-(1-(5-(2-methoxypyrimidin-5-yl)-7h-pyrrolo[2,3-d]pyrimidin-4-yl)azetidin-2-yl)-3-phenylpyrrolo[2,1-f][1,2,4]triazin-4(3h)-one	(S)-5-Fluoro-2-(1-(5-(2-methoxypyrimidin-5-yl)-7h-pyrrolo[2,3-d]pyrimidin-4-yl)azetidin-2-yl)-3-phenylpyrrolo[2,1-f][1,2,4]triazin-4(3h)-one	分子量：509.5 密度：N/A 沸点：N/A 熔点：N/A	1548338-68-6	C₂₆H₂₀FN₉O₂
(2S)-2-amino-2-(3-methylpyrazin-2-yl)ethan-1-ol	(2S)-2-amino-2-(3-methylpyrazin-2-yl)ethan-1-ol	分子量：153.18 密度：N/A 沸点：N/A 熔点：N/A	2227739-04-8	C₇H₁₁N₃O
N-{1-[(3,5-dimethylisoxazol-4-yl)methyl]piperidin-4-yl}-2-hydroxynicotinamide	N-{1-[(3,5-dimethylisoxazol-4-yl)methyl]piperidin-4-yl}-2-hydroxynicotinamide	分子量：330.4 密度：N/A 沸点：N/A 熔点：N/A	2108741-05-3	C₁₇H₂₂N₄O₃
7-[(cyclopropylmethyl)amino]-2-(3-methoxyphenyl)-6,7-dihydropyrazolo[1,5-a]pyrazin-4(5H)-one	7-[(cyclopropylmethyl)amino]-2-(3-methoxyphenyl)-6,7-dihydropyrazolo[1,5-a]pyrazin-4(5H)-one	分子量：312.37 密度：N/A 沸点：N/A 熔点：N/A	2109584-08-7	C₁₇H₂₀N₄O₂