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
ethyl N-(2-{[3-cyano-6-(3,4-dimethoxyphenyl)-4-(trifluoromethyl)-2-pyridinyl]sulfanyl}acetyl)carbamate	ethyl N-(2-{[3-cyano-6-(3,4-dimethoxyphenyl)-4-(trifluoromethyl)-2-pyridinyl]sulfanyl}acetyl)carbamate	分子量：469.4 密度：N/A 沸点：N/A 熔点：N/A	939893-62-6	C₂₀H₁₈F₃N₃O₅S
3-amino-6-methyl-N-(3-methyl-1,2-oxazol-5-yl)-4-(trifluoromethyl)thieno[2,3-b]pyridine-2-carboxamide	3-amino-6-methyl-N-(3-methyl-1,2-oxazol-5-yl)-4-(trifluoromethyl)thieno[2,3-b]pyridine-2-carboxamide	分子量：356.33 密度：N/A 沸点：N/A 熔点：N/A	924832-21-3	C₁₄H₁₁F₃N₄O₂S
3-amino-6-ethyl-N-isopropyl-4-(trifluoromethyl)-5,6,7,8-tetrahydrothieno[2,3-b]quinoline-2-carboxamide	3-amino-6-ethyl-N-isopropyl-4-(trifluoromethyl)-5,6,7,8-tetrahydrothieno[2,3-b]quinoline-2-carboxamide	分子量：385.4 密度：N/A 沸点：N/A 熔点：N/A	939893-68-2	C₁₈H₂₂F₃N₃OS
3-amino-N-cyclopropyl-6-ethyl-4-(trifluoromethyl)-5,6,7,8-tetrahydrothieno[2,3-b]quinoline-2-carboxamide	3-amino-N-cyclopropyl-6-ethyl-4-(trifluoromethyl)-5,6,7,8-tetrahydrothieno[2,3-b]quinoline-2-carboxamide	分子量：383.4 密度：N/A 沸点：N/A 熔点：N/A	939888-73-0	C₁₈H₂₀F₃N₃OS
3-amino-N-(5-chloro-2-methoxyphenyl)-6-ethyl-4-(trifluoromethyl)-5,6,7,8-tetrahydrothieno[2,3-b]quinoline-2-carboxamide	3-amino-N-(5-chloro-2-methoxyphenyl)-6-ethyl-4-(trifluoromethyl)-5,6,7,8-tetrahydrothieno[2,3-b]quinoline-2-carboxamide	分子量：483.9 密度：N/A 沸点：N/A 熔点：N/A	939888-82-1	C₂₂H₂₁ClF₃N₃O₂S
2-(methacryloyloxy)ethyl 6-amino-4-(4-bromophenyl)-5-cyano-2-methyl-4H-pyran-3-carboxylate	2-(methacryloyloxy)ethyl 6-amino-4-(4-bromophenyl)-5-cyano-2-methyl-4H-pyran-3-carboxylate	分子量：447.3 密度：N/A 沸点：N/A 熔点：N/A	939888-96-7	C₂₀H₁₉BrN₂O₅
6-amino-3-(4-chlorophenyl)-4-[4-(cyclopentyloxy)-3-methoxyphenyl]-2H,4H-pyrano[2,3-c]pyrazole-5-carbonitrile	6-amino-3-(4-chlorophenyl)-4-[4-(cyclopentyloxy)-3-methoxyphenyl]-2H,4H-pyrano[2,3-c]pyrazole-5-carbonitrile	分子量：462.9 密度：N/A 沸点：N/A 熔点：N/A	939889-00-6	C₂₅H₂₃ClN₄O₃
Methyl 2-amino-6-(hydroxymethyl)-4-(2-nitrophenyl)-8-oxo-4,8-dihydropyrano[3,2-b]pyran-3-carboxylate	Methyl 2-amino-6-(hydroxymethyl)-4-(2-nitrophenyl)-8-oxo-4,8-dihydropyrano[3,2-b]pyran-3-carboxylate	分子量：374.3 密度：N/A 沸点：N/A 熔点：N/A	924845-27-2	C₁₇H₁₄N₂O₈
ethyl 2-amino-6-(hydroxymethyl)-4-(2-nitrophenyl)-8-oxo-4H,8H-pyrano[3,2-b]pyran-3-carboxylate	ethyl 2-amino-6-(hydroxymethyl)-4-(2-nitrophenyl)-8-oxo-4H,8H-pyrano[3,2-b]pyran-3-carboxylate	分子量：388.3 密度：N/A 沸点：N/A 熔点：N/A	924832-27-9	C₁₈H₁₆N₂O₈
Ethyl 2-amino-4-(3-chloro-4-nitrophenyl)-6-(hydroxymethyl)-8-oxo-4,8-dihydropyrano[3,2-b]pyran-3-carboxylate	Ethyl 2-amino-4-(3-chloro-4-nitrophenyl)-6-(hydroxymethyl)-8-oxo-4,8-dihydropyrano[3,2-b]pyran-3-carboxylate	分子量：422.8 密度：N/A 沸点：N/A 熔点：N/A	939889-02-8	C₁₈H₁₅ClN₂O₈
methylethyl 2-amino-6-(hydroxymethyl)-4-(2-nitrophenyl)-8-oxo-4H-pyrano[3,2-b] pyran-3-carboxylate	methylethyl 2-amino-6-(hydroxymethyl)-4-(2-nitrophenyl)-8-oxo-4H-pyrano[3,2-b] pyran-3-carboxylate	分子量：402.4 密度：N/A 沸点：N/A 熔点：N/A	924845-29-4	C₁₉H₁₈N₂O₈
Isopropyl 2-amino-4-(3-chloro-4-nitrophenyl)-6-(hydroxymethyl)-8-oxo-4,8-dihydropyrano[3,2-b]pyran-3-carboxylate	Isopropyl 2-amino-4-(3-chloro-4-nitrophenyl)-6-(hydroxymethyl)-8-oxo-4,8-dihydropyrano[3,2-b]pyran-3-carboxylate	分子量：436.8 密度：N/A 沸点：N/A 熔点：N/A	939894-04-9	C₁₉H₁₇ClN₂O₈
ethyl 2-amino-4-(2,6-dichlorophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate	ethyl 2-amino-4-(2,6-dichlorophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate	分子量：448.3 密度：N/A 沸点：N/A 熔点：N/A	939889-03-9	C₂₁H₁₅Cl₂NO₄S
ethyl 2-amino-4-(2-chloro-6-fluorophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate	ethyl 2-amino-4-(2-chloro-6-fluorophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate	分子量：431.9 密度：N/A 沸点：N/A 熔点：N/A	939894-07-2	C₂₁H₁₅ClFNO₄S
ethyl 2-amino-4-(3-nitrophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate	ethyl 2-amino-4-(3-nitrophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate	分子量：424.4 密度：N/A 沸点：N/A 熔点：N/A	939889-05-1	C₂₁H₁₆N₂O₆S
ethyl 2-amino-4-(4-nitrophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate	ethyl 2-amino-4-(4-nitrophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate	分子量：424.4 密度：N/A 沸点：N/A 熔点：N/A	939894-10-7	C₂₁H₁₆N₂O₆S
ethyl 2-amino-4-(3-chloro-4-nitrophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate	ethyl 2-amino-4-(3-chloro-4-nitrophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate	分子量：458.9 密度：N/A 沸点：N/A 熔点：N/A	939889-07-3	C₂₁H₁₅ClN₂O₆S
methyl 2-amino-4-(2,6-dichlorophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate	methyl 2-amino-4-(2,6-dichlorophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate	分子量：434.3 密度：N/A 沸点：N/A 熔点：N/A	939889-09-5	C₂₀H₁₃Cl₂NO₄S
tert-Butyl [1-(azidomethyl)cyclopropyl]carbamate	tert-Butyl [1-(azidomethyl)cyclopropyl]carbamate	分子量：212.25 密度：N/A 沸点：N/A 熔点：N/A	849149-60-6	C₉H₁₆N₄O₂
methyl 2-amino-4-(2-chloro-6-fluorophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate	methyl 2-amino-4-(2-chloro-6-fluorophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate	分子量：417.8 密度：N/A 沸点：N/A 熔点：N/A	939894-16-3	C₂₀H₁₃ClFNO₄S
methyl 2-amino-4-(3-nitrophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate	methyl 2-amino-4-(3-nitrophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate	分子量：410.4 密度：N/A 沸点：N/A 熔点：N/A	939889-11-9	C₂₀H₁₄N₂O₆S
methyl 2-amino-4-(4-nitrophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate	methyl 2-amino-4-(4-nitrophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate	分子量：410.4 密度：N/A 沸点：N/A 熔点：N/A	939894-19-6	C₂₀H₁₄N₂O₆S
methyl 2-amino-4-(3-chloro-4-nitrophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate	methyl 2-amino-4-(3-chloro-4-nitrophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate	分子量：444.8 密度：N/A 沸点：N/A 熔点：N/A	939889-13-1	C₂₀H₁₃ClN₂O₆S
isopropyl 2-amino-4-(3-nitrophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate	isopropyl 2-amino-4-(3-nitrophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate	分子量：438.5 密度：N/A 沸点：N/A 熔点：N/A	939894-22-1	C₂₂H₁₈N₂O₆S
isopropyl 2-amino-4-(2-chlorophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate	isopropyl 2-amino-4-(2-chlorophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate	分子量：427.9 密度：N/A 沸点：N/A 熔点：N/A	939889-15-3	C₂₂H₁₈ClNO₄S
CID 17940167	CID 17940167	分子量：242.11 密度：N/A 沸点：N/A 熔点：N/A	1449686-85-4	C₁₀H₁₂BrNO
isopropyl 2-amino-4-(2-chloro-6-fluorophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate	isopropyl 2-amino-4-(2-chloro-6-fluorophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate	分子量：445.9 密度：N/A 沸点：N/A 熔点：N/A	939894-25-4	C₂₂H₁₇ClFNO₄S
3-amino-N-cyclopropyl-6-[(3,4-dimethoxyphenyl)methyl]-4-(trifluoromethyl)thieno[2,3-b]pyridine-2-carboxamide	3-amino-N-cyclopropyl-6-[(3,4-dimethoxyphenyl)methyl]-4-(trifluoromethyl)thieno[2,3-b]pyridine-2-carboxamide	分子量：451.5 密度：N/A 沸点：N/A 熔点：N/A	924832-28-0	C₂₁H₂₀F₃N₃O₃S
3-amino-N-(2-chlorobenzyl)-6-(3,4-dimethoxybenzyl)-4-(trifluoromethyl)thieno[2,3-b]pyridine-2-carboxamide	3-amino-N-(2-chlorobenzyl)-6-(3,4-dimethoxybenzyl)-4-(trifluoromethyl)thieno[2,3-b]pyridine-2-carboxamide	分子量：536.0 密度：N/A 沸点：N/A 熔点：N/A	939889-17-5	C₂₅H₂₁ClF₃N₃O₃S
3-amino-6-(3,4-dimethoxybenzyl)-N-(4-fluorobenzyl)-4-(trifluoromethyl)thieno[2,3-b]pyridine-2-carboxamide	3-amino-6-(3,4-dimethoxybenzyl)-N-(4-fluorobenzyl)-4-(trifluoromethyl)thieno[2,3-b]pyridine-2-carboxamide	分子量：519.5 密度：N/A 沸点：N/A 熔点：N/A	939894-28-7	C₂₅H₂₁F₄N₃O₃S
3-amino-N-(1,3-benzodioxol-5-ylmethyl)-6-(3,4-dimethoxybenzyl)-4-(trifluoromethyl)thieno[2,3-b]pyridine-2-carboxamide	3-amino-N-(1,3-benzodioxol-5-ylmethyl)-6-(3,4-dimethoxybenzyl)-4-(trifluoromethyl)thieno[2,3-b]pyridine-2-carboxamide	分子量：545.5 密度：N/A 沸点：N/A 熔点：N/A	939889-19-7	C₂₆H₂₂F₃N₃O₅S
3-amino-6-(3,4-dimethoxybenzyl)-N-(4-methoxybenzyl)-4-(trifluoromethyl)thieno[2,3-b]pyridine-2-carboxamide	3-amino-6-(3,4-dimethoxybenzyl)-N-(4-methoxybenzyl)-4-(trifluoromethyl)thieno[2,3-b]pyridine-2-carboxamide	分子量：531.5 密度：N/A 沸点：N/A 熔点：N/A	939894-31-2	C₂₆H₂₄F₃N₃O₄S
3-amino-6-(3,4-dimethoxybenzyl)-N-(4-fluorophenyl)-4-(trifluoromethyl)thieno[2,3-b]pyridine-2-carboxamide	3-amino-6-(3,4-dimethoxybenzyl)-N-(4-fluorophenyl)-4-(trifluoromethyl)thieno[2,3-b]pyridine-2-carboxamide	分子量：505.5 密度：N/A 沸点：N/A 熔点：N/A	939889-21-1	C₂₄H₁₉F₄N₃O₃S
4-Bromophenylfluoranesulfonate	4-Bromophenylfluoranesulfonate	分子量：255.06 密度：N/A 沸点：N/A 熔点：N/A	133042-63-4	C₆H₄BrFO₃S
8-ethyl-9-methyl-10-(trifluoromethyl)-3,4-dihydro-1H-pyrido[3',2':4,5]thieno[3,2-e][1,4]diazepine-2,5-dione	8-ethyl-9-methyl-10-(trifluoromethyl)-3,4-dihydro-1H-pyrido[3',2':4,5]thieno[3,2-e][1,4]diazepine-2,5-dione	分子量：343.33 密度：N/A 沸点：N/A 熔点：N/A	939894-34-5	C₁₄H₁₂F₃N₃O₂S
(6aS)-2-ethyl-3-methyl-6a,7,8,9-tetrahydro-6H-pyrido[3',2':4,5]thieno[3,2-e]pyrrolo[1,2-a][1,4]diazepine-6,11(5H)-dione	(6aS)-2-ethyl-3-methyl-6a,7,8,9-tetrahydro-6H-pyrido[3',2':4,5]thieno[3,2-e]pyrrolo[1,2-a][1,4]diazepine-6,11(5H)-dione	分子量：315.4 密度：N/A 沸点：N/A 熔点：N/A	1212390-99-2	C₁₆H₁₇N₃O₂S
4-(2-chlorobenzyl)-1-(4-methoxyphenyl)-3-methyl-1H-pyrazol-5-ol	4-(2-chlorobenzyl)-1-(4-methoxyphenyl)-3-methyl-1H-pyrazol-5-ol	分子量：328.8 密度：N/A 沸点：N/A 熔点：N/A	925181-97-1	C₁₈H₁₇ClN₂O₂
1-(4-Methylphenyl)pyrrolo[1,2-a]pyrazine	1-(4-Methylphenyl)pyrrolo[1,2-a]pyrazine	分子量：208.26 密度：N/A 沸点：N/A 熔点：N/A	136927-47-4	C₁₄H₁₂N₂
[(1-Cyano-1-cyclopropylethyl)carbamoyl]methyl 2-[2-(4-methylphenyl)ethenesulfonamido]acetate	[(1-Cyano-1-cyclopropylethyl)carbamoyl]methyl 2-[2-(4-methylphenyl)ethenesulfonamido]acetate	分子量：405.5 密度：N/A 沸点：N/A 熔点：N/A	930859-50-0	C₁₉H₂₃N₃O₅S
N-{8-methyl-2,4-dioxo-1,3-diazaspiro[4.5]decan-3-yl}-2-[4-(2-phenylethenesulfonyl)piperazin-1-yl]acetamide	N-{8-methyl-2,4-dioxo-1,3-diazaspiro[4.5]decan-3-yl}-2-[4-(2-phenylethenesulfonyl)piperazin-1-yl]acetamide	分子量：489.6 密度：N/A 沸点：N/A 熔点：N/A	931021-78-2	C₂₃H₃₁N₅O₅S
5-(Bromomethyl)-2-methylbenzo[d]oxazole	5-(Bromomethyl)-2-methylbenzo[d]oxazole	分子量：226.07 密度：N/A 沸点：N/A 熔点：N/A	136663-54-2	C₉H₈BrNO
Iron hydride (FeD2)	Iron hydride (FeD2)	分子量：59.87 密度：N/A 沸点：N/A 熔点：N/A	88272-21-3	FeH₂
3-Butyl-4-methoxy-1(3H)-isobenzofuranone	3-Butyl-4-methoxy-1(3H)-isobenzofuranone	分子量：220.26 密度：N/A 沸点：N/A 熔点：N/A	74459-22-6	C₁₃H₁₆O₃
3-[4-(2-{4-[3-Chloro-5-(trifluoromethyl)-2-pyridinyl]piperazino}ethoxy)phenyl]-1-(4-pyridinyl)-2-propen-1-one	3-[4-(2-{4-[3-Chloro-5-(trifluoromethyl)-2-pyridinyl]piperazino}ethoxy)phenyl]-1-(4-pyridinyl)-2-propen-1-one	分子量：516.9 密度：N/A 沸点：N/A 熔点：N/A	338406-46-5	C₂₆H₂₄ClF₃N₄O₂
ethyl 3-{1-[3-chloro-5-(trifluoromethyl)-2-pyridinyl]-1H-indol-3-yl}acrylate	ethyl 3-{1-[3-chloro-5-(trifluoromethyl)-2-pyridinyl]-1H-indol-3-yl}acrylate	分子量：394.8 密度：N/A 沸点：N/A 熔点：N/A	338410-03-0	C₁₉H₁₄ClF₃N₂O₂
ethyl 1-(ethylsulfonyl)-3,5-dimethyl-1H-pyrazole-4-carboxylate	ethyl 1-(ethylsulfonyl)-3,5-dimethyl-1H-pyrazole-4-carboxylate	分子量：260.31 密度：N/A 沸点：N/A 熔点：N/A	956938-61-7	C₁₀H₁₆N₂O₄S
(E)-1-[1,1'-biphenyl]-4-yl-3-(dimethylamino)-2-buten-1-one	(E)-1-[1,1'-biphenyl]-4-yl-3-(dimethylamino)-2-buten-1-one	分子量：265.3 密度：N/A 沸点：N/A 熔点：N/A	900014-95-1	C₁₈H₁₉NO
4-{(E)-2-cyano-3-[2-(trifluoromethyl)phenyl]-2-propenoyl}benzenecarbonitrile	4-{(E)-2-cyano-3-[2-(trifluoromethyl)phenyl]-2-propenoyl}benzenecarbonitrile	分子量：326.3 密度：N/A 沸点：N/A 熔点：N/A	900014-97-3	C₁₈H₉F₃N₂O
6-[4-(Tert-butyl)phenoxy]nicotinonitrile	6-[4-(Tert-butyl)phenoxy]nicotinonitrile	分子量：252.31 密度：N/A 沸点：N/A 熔点：N/A	900015-08-9	C₁₆H₁₆N₂O
4-Azido-6-methyl-2H-pyran-2-one	4-Azido-6-methyl-2H-pyran-2-one	分子量：151.12 密度：N/A 沸点：N/A 熔点：N/A	132559-92-3	C₆H₅N₃O₂