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
(3,4-Dichloro-2-fluorophenyl)methanamine	(3,4-Dichloro-2-fluorophenyl)methanamine	分子量：194.03 密度：N/A 沸点：N/A 熔点：N/A	1353636-77-7	C₇H₆Cl₂FN
5-(Trifluoromethyl)imidazo[1,2-a]pyridine-3-carboxylic acid	5-(Trifluoromethyl)imidazo[1,2-a]pyridine-3-carboxylic acid	分子量：230.14 密度：N/A 沸点：N/A 熔点：N/A	1443145-76-3	C₉H₅F₃N₂O₂
2-Bromo-1-(chloromethyl)-3-nitrobenzene	2-Bromo-1-(chloromethyl)-3-nitrobenzene	分子量：250.48 密度：N/A 沸点：N/A 熔点：N/A	1261758-96-6	C₇H₅BrClNO₂
(2-Bromo-3-nitrophenyl)methanamine	(2-Bromo-3-nitrophenyl)methanamine	分子量：231.05 密度：N/A 沸点：N/A 熔点：N/A	1261685-05-5	C₇H₇BrN₂O₂
Methyl 3-(bromomethyl)-4-iodobenzoate	Methyl 3-(bromomethyl)-4-iodobenzoate	分子量：354.97 密度：N/A 沸点：N/A 熔点：N/A	1187237-61-1	C₉H₈BrIO₂
Ethyl 3-(bromomethyl)-4-iodobenzoate	Ethyl 3-(bromomethyl)-4-iodobenzoate	分子量：368.99 密度：N/A 沸点：N/A 熔点：N/A	169204-50-6	C₁₀H₁₀BrIO₂
2,3-Dichloro-5H-pyrrolo[3,4-b]pyrazine-5,7(6H)-dione	2,3-Dichloro-5H-pyrrolo[3,4-b]pyrazine-5,7(6H)-dione	分子量：217.99 密度：N/A 沸点：N/A 熔点：N/A	213549-73-6	C₆HCl₂N₃O₂
1-(3-Hydroxy-4-iodophenyl)ethanone	1-(3-Hydroxy-4-iodophenyl)ethanone	分子量：262.04 密度：N/A 沸点：N/A 熔点：N/A	73898-23-4	C₈H₇IO₂
(4-Iodo-3-methoxyphenyl)methanamine	(4-Iodo-3-methoxyphenyl)methanamine	分子量：263.08 密度：N/A 沸点：N/A 熔点：N/A	1379296-86-2	C₈H₁₀INO
Ethyl 4-aminobenzo[d]isoxazole-3-carboxylate	Ethyl 4-aminobenzo[d]isoxazole-3-carboxylate	分子量：206.20 密度：N/A 沸点：N/A 熔点：N/A	1352398-30-1	C₁₀H₁₀N₂O₃
4-Nitrobenzo[d]isoxazole-3-carboxylic acid	4-Nitrobenzo[d]isoxazole-3-carboxylic acid	分子量：208.13 密度：N/A 沸点：N/A 熔点：N/A	1352395-83-5	C₈H₄N₂O₅
(S)-7-Bromo-6-methoxychroman-4-amine	(S)-7-Bromo-6-methoxychroman-4-amine	分子量：258.11 密度：N/A 沸点：N/A 熔点：N/A	1344433-29-9	C₁₀H₁₂BrNO₂
(R)-7-Bromo-6-methoxychroman-4-amine	(R)-7-Bromo-6-methoxychroman-4-amine	分子量：258.11 密度：N/A 沸点：N/A 熔点：N/A	1344468-16-1	C₁₀H₁₂BrNO₂
7-(Difluoromethoxy)-1,2,3,4-tetrahydronaphthalen-1-amine	7-(Difluoromethoxy)-1,2,3,4-tetrahydronaphthalen-1-amine	分子量：213.22 密度：N/A 沸点：N/A 熔点：N/A	1337793-91-5	C₁₁H₁₃F₂NO
(R)-7-(Difluoromethoxy)-1,2,3,4-tetrahydronaphthalen-1-amine	(R)-7-(Difluoromethoxy)-1,2,3,4-tetrahydronaphthalen-1-amine	分子量：213.22 密度：N/A 沸点：N/A 熔点：N/A	1213483-37-4	C₁₁H₁₃F₂NO
(R)-5-Bromo-4-fluoro-2,3-dihydro-1H-inden-1-amine	(R)-5-Bromo-4-fluoro-2,3-dihydro-1H-inden-1-amine	分子量：230.08 密度：N/A 沸点：N/A 熔点：N/A	1259617-09-8	C₉H₉BrFN
Rel-(1R,3R)-3-amino-2,2-dimethylcyclobutane-1-carboxylic acid	Rel-(1R,3R)-3-amino-2,2-dimethylcyclobutane-1-carboxylic acid	分子量：143.18 密度：N/A 沸点：N/A 熔点：N/A	1392879-19-4	C₇H₁₃NO₂
tert-butyl ((1R,3R)-3-amino-2,2-dimethylcyclobutyl)carbamate	tert-butyl ((1R,3R)-3-amino-2,2-dimethylcyclobutyl)carbamate	分子量：214.30 密度：N/A 沸点：N/A 熔点：N/A	1932171-62-4	C₁₁H₂₂N₂O₂
2-(Butylamino)-4-(((1r,4r)-4-hydroxycyclohexyl)-amino)pyrimidine-5-carboxylic acid	2-(Butylamino)-4-(((1r,4r)-4-hydroxycyclohexyl)-amino)pyrimidine-5-carboxylic acid	分子量：308.38 密度：N/A 沸点：N/A 熔点：N/A	1493764-37-6	C₁₅H₂₄N₄O₃
21-(Acetyloxy)-6-fluoro-11-hydroxy-16,17-((1-methylethylidene)bis(oxy))pregna-1,4,8-triene-3,20-dione, (6alpha,11beta,16alpha)-	21-(Acetyloxy)-6-fluoro-11-hydroxy-16,17-((1-methylethylidene)bis(oxy))pregna-1,4,8-triene-3,20-dione, (6alpha,11beta,16alpha)-	分子量：474.5 密度：N/A 沸点：N/A 熔点：N/A	5049-90-1	C₂₆H₃₁FO₇
3-p-Coumaroylquinic acid, (Z)-	3-p-Coumaroylquinic acid, (Z)-	分子量：338.31 密度：N/A 沸点：N/A 熔点：N/A	87099-74-9	C₁₆H₁₈O₈
[1-(2-Cyclopropyl-1,3-thiazol-4-yl)cyclohexyl]methanamine	[1-(2-Cyclopropyl-1,3-thiazol-4-yl)cyclohexyl]methanamine	分子量：236.38 密度：N/A 沸点：N/A 熔点：N/A	1516637-46-9	C₁₃H₂₀N₂S
2,6-Dichloro-4-methylsulfanylbenzonitrile	2,6-Dichloro-4-methylsulfanylbenzonitrile	分子量：218.10 密度：N/A 沸点：N/A 熔点：N/A	30477-72-6	C₈H₅Cl₂NS
4-(6-Methoxypyridin-3-yl)oxane-4-carboxylic acid	4-(6-Methoxypyridin-3-yl)oxane-4-carboxylic acid	分子量：237.25 密度：N/A 沸点：N/A 熔点：N/A	1515852-22-8	C₁₂H₁₅NO₄
4-(2-Methoxypyridin-4-yl)oxane-4-carboxylic acid	4-(2-Methoxypyridin-4-yl)oxane-4-carboxylic acid	分子量：237.25 密度：N/A 沸点：N/A 熔点：N/A	1519487-42-3	C₁₂H₁₅NO₄
(R)-1-Cyclopentyl-2,2,2-trifluoroethan-1-amine	(R)-1-Cyclopentyl-2,2,2-trifluoroethan-1-amine	分子量：167.17 密度：N/A 沸点：N/A 熔点：N/A	1269834-99-2	C₇H₁₂F₃N
N,N-Diethyl-1-phenylethane-1,2-diamine;hydrochloride	N,N-Diethyl-1-phenylethane-1,2-diamine;hydrochloride	分子量：228.76 密度：N/A 沸点：N/A 熔点：N/A	1050509-08-4	C₁₂H₂₁ClN₂
Tert-butyl N-[(3R,4R)-3-hydroxy-1,1-dioxothian-4-yl]carbamate	Tert-butyl N-[(3R,4R)-3-hydroxy-1,1-dioxothian-4-yl]carbamate	分子量：265.33 密度：N/A 沸点：N/A 熔点：N/A	183607-06-9	C₁₀H₁₉NO₅S
2alpha-Benzylcyclopropane-1beta-carboxylic acid ethyl ester	2alpha-Benzylcyclopropane-1beta-carboxylic acid ethyl ester	分子量：204.26 密度：N/A 沸点：N/A 熔点：N/A	27278-76-8	C₁₃H₁₆O₂
N-(2-(7-oxofuro[2,3-c]pyridin-6(7H)-yl)ethyl)-1H-indole-2-carboxamide	N-(2-(7-oxofuro[2,3-c]pyridin-6(7H)-yl)ethyl)-1H-indole-2-carboxamide	分子量：321.3 密度：N/A 沸点：N/A 熔点：N/A	2034272-07-4	C₁₈H₁₅N₃O₃
N-(2-(7-oxofuro[2,3-c]pyridin-6(7H)-yl)ethyl)-1H-indole-3-carboxamide	N-(2-(7-oxofuro[2,3-c]pyridin-6(7H)-yl)ethyl)-1H-indole-3-carboxamide	分子量：321.3 密度：N/A 沸点：N/A 熔点：N/A	2034413-70-0	C₁₈H₁₅N₃O₃
2-(benzo[d][1,3]dioxol-5-yl)-N-(2-(7-oxofuro[2,3-c]pyridin-6(7H)-yl)ethyl)acetamide	2-(benzo[d][1,3]dioxol-5-yl)-N-(2-(7-oxofuro[2,3-c]pyridin-6(7H)-yl)ethyl)acetamide	分子量：340.3 密度：N/A 沸点：N/A 熔点：N/A	2034352-46-8	C₁₈H₁₆N₂O₅
6-oxo-N-(2-(7-oxofuro[2,3-c]pyridin-6(7H)-yl)ethyl)-1,4,5,6-tetrahydropyridazine-3-carboxamide	6-oxo-N-(2-(7-oxofuro[2,3-c]pyridin-6(7H)-yl)ethyl)-1,4,5,6-tetrahydropyridazine-3-carboxamide	分子量：302.29 密度：N/A 沸点：N/A 熔点：N/A	2034415-66-0	C₁₄H₁₄N₄O₄
2-bromo-N-(2-(4-oxobenzo[d][1,2,3]triazin-3(4H)-yl)ethyl)benzamide	2-bromo-N-(2-(4-oxobenzo[d][1,2,3]triazin-3(4H)-yl)ethyl)benzamide	分子量：373.20 密度：N/A 沸点：N/A 熔点：N/A	1903289-77-9	C₁₆H₁₃BrN₄O₂
1-(4-chlorophenyl)-N-(2-(4-oxobenzo[d][1,2,3]triazin-3(4H)-yl)ethyl)cyclopentanecarboxamide	1-(4-chlorophenyl)-N-(2-(4-oxobenzo[d][1,2,3]triazin-3(4H)-yl)ethyl)cyclopentanecarboxamide	分子量：396.9 密度：N/A 沸点：N/A 熔点：N/A	1904222-81-6	C₂₁H₂₁ClN₄O₂
4-(Cyclopropylmethyl)-1,3-thiazol-2-amine	4-(Cyclopropylmethyl)-1,3-thiazol-2-amine	分子量：154.24 密度：N/A 沸点：N/A 熔点：N/A	1564711-50-7	C₇H₁₀N₂S
2-(2-chlorophenyl)-N-(2-(4-oxobenzo[d][1,2,3]triazin-3(4H)-yl)ethyl)acetamide	2-(2-chlorophenyl)-N-(2-(4-oxobenzo[d][1,2,3]triazin-3(4H)-yl)ethyl)acetamide	分子量：342.8 密度：N/A 沸点：N/A 熔点：N/A	1903164-52-2	C₁₇H₁₅ClN₄O₂
5-(1,2-dithiolan-3-yl)-N-(2-(4-oxobenzo[d][1,2,3]triazin-3(4H)-yl)ethyl)pentanamide	5-(1,2-dithiolan-3-yl)-N-(2-(4-oxobenzo[d][1,2,3]triazin-3(4H)-yl)ethyl)pentanamide	分子量：378.5 密度：N/A 沸点：N/A 熔点：N/A	1903164-55-5	C₁₇H₂₂N₄O₂S₂
5-chloro-2-methoxy-N-(2-(4-oxobenzo[d][1,2,3]triazin-3(4H)-yl)ethyl)benzenesulfonamide	5-chloro-2-methoxy-N-(2-(4-oxobenzo[d][1,2,3]triazin-3(4H)-yl)ethyl)benzenesulfonamide	分子量：394.8 密度：N/A 沸点：N/A 熔点：N/A	1903433-52-2	C₁₆H₁₅ClN₄O₄S
N-(2-(4-oxobenzo[d][1,2,3]triazin-3(4H)-yl)ethyl)-4-(1H-pyrazol-1-yl)benzenesulfonamide	N-(2-(4-oxobenzo[d][1,2,3]triazin-3(4H)-yl)ethyl)-4-(1H-pyrazol-1-yl)benzenesulfonamide	分子量：396.4 密度：N/A 沸点：N/A 熔点：N/A	1903879-15-1	C₁₈H₁₆N₆O₃S
N-(2-(6-fluoro-4-oxobenzo[d][1,2,3]triazin-3(4H)-yl)ethyl)-2,4-dimethylthiazole-5-carboxamide	N-(2-(6-fluoro-4-oxobenzo[d][1,2,3]triazin-3(4H)-yl)ethyl)-2,4-dimethylthiazole-5-carboxamide	分子量：347.4 密度：N/A 沸点：N/A 熔点：N/A	1903777-09-2	C₁₅H₁₄FN₅O₂S
(1-methyl-1H-indazol-3-yl)(3-(5-(thiophen-2-yl)-1,2,4-oxadiazol-3-yl)pyrrolidin-1-yl)methanone	(1-methyl-1H-indazol-3-yl)(3-(5-(thiophen-2-yl)-1,2,4-oxadiazol-3-yl)pyrrolidin-1-yl)methanone	分子量：379.4 密度：N/A 沸点：N/A 熔点：N/A	2034412-93-4	C₁₉H₁₇N₅O₂S
(2-(Ethylthio)phenyl)(3-(3-methyl-1,2,4-oxadiazol-5-yl)-4-phenylpyrrolidin-1-yl)methanone	(2-(Ethylthio)phenyl)(3-(3-methyl-1,2,4-oxadiazol-5-yl)-4-phenylpyrrolidin-1-yl)methanone	分子量：393.5 密度：N/A 沸点：N/A 熔点：N/A	1903780-74-4	C₂₂H₂₃N₃O₂S
(3-(3-Methyl-1,2,4-oxadiazol-5-yl)-4-phenylpyrrolidin-1-yl)(quinoxalin-2-yl)methanone	(3-(3-Methyl-1,2,4-oxadiazol-5-yl)-4-phenylpyrrolidin-1-yl)(quinoxalin-2-yl)methanone	分子量：385.4 密度：N/A 沸点：N/A 熔点：N/A	1903169-87-8	C₂₂H₁₉N₅O₂
(3-(3-Methyl-1,2,4-oxadiazol-5-yl)-4-phenylpyrrolidin-1-yl)(pyridin-2-yl)methanone	(3-(3-Methyl-1,2,4-oxadiazol-5-yl)-4-phenylpyrrolidin-1-yl)(pyridin-2-yl)methanone	分子量：334.4 密度：N/A 沸点：N/A 熔点：N/A	1904312-14-6	C₁₉H₁₈N₄O₂
1-(3-(3-Methyl-1,2,4-oxadiazol-5-yl)-4-phenylpyrrolidin-1-yl)-3-(phenylthio)propan-1-one	1-(3-(3-Methyl-1,2,4-oxadiazol-5-yl)-4-phenylpyrrolidin-1-yl)-3-(phenylthio)propan-1-one	分子量：393.5 密度：N/A 沸点：N/A 熔点：N/A	1903169-96-9	C₂₂H₂₃N₃O₂S
(3-(3-methyl-1,2,4-oxadiazol-5-yl)-4-phenylpyrrolidin-1-yl)(1-methyl-1H-1,2,3-triazol-4-yl)methanone	(3-(3-methyl-1,2,4-oxadiazol-5-yl)-4-phenylpyrrolidin-1-yl)(1-methyl-1H-1,2,3-triazol-4-yl)methanone	分子量：338.4 密度：N/A 沸点：N/A 熔点：N/A	1903170-03-5	C₁₇H₁₈N₆O₂
1-(3-(3-methyl-1,2,4-oxadiazol-5-yl)-4-phenylpyrrolidin-1-yl)-2-(1H-pyrazol-1-yl)ethanone	1-(3-(3-methyl-1,2,4-oxadiazol-5-yl)-4-phenylpyrrolidin-1-yl)-2-(1H-pyrazol-1-yl)ethanone	分子量：337.4 密度：N/A 沸点：N/A 熔点：N/A	1903170-17-1	C₁₈H₁₉N₅O₂
2-(2-(3-(3-methyl-1,2,4-oxadiazol-5-yl)-4-phenylpyrrolidin-1-yl)-2-oxoethyl)pyridazin-3(2H)-one	2-(2-(3-(3-methyl-1,2,4-oxadiazol-5-yl)-4-phenylpyrrolidin-1-yl)-2-oxoethyl)pyridazin-3(2H)-one	分子量：365.4 密度：N/A 沸点：N/A 熔点：N/A	1903170-25-1	C₁₉H₁₉N₅O₃
2-(2-Methoxyphenyl)-1-(3-(3-methyl-1,2,4-oxadiazol-5-yl)-4-phenylpyrrolidin-1-yl)ethanone	2-(2-Methoxyphenyl)-1-(3-(3-methyl-1,2,4-oxadiazol-5-yl)-4-phenylpyrrolidin-1-yl)ethanone	分子量：377.4 密度：N/A 沸点：N/A 熔点：N/A	1903882-49-4	C₂₂H₂₃N₃O₃