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-Fluorophenyl)prop-1-yn-1-yl]trimethylsilane	[3-(4-Fluorophenyl)prop-1-yn-1-yl]trimethylsilane	分子量：206.33 密度：N/A 沸点：N/A 熔点：N/A	133218-06-1	C₁₂H₁₅FSi
1-Hydroxy-3,5-dimethoxy-2,4-diprenylxanthone	1-Hydroxy-3,5-dimethoxy-2,4-diprenylxanthone	分子量：408.5 密度：N/A 沸点：N/A 熔点：N/A	35323-84-3	C₂₅H₂₈O₅
1,8-Dihydroxy-3,5-dimethoxy-2-prenylxanthone	1,8-Dihydroxy-3,5-dimethoxy-2-prenylxanthone	分子量：356.4 密度：N/A 沸点：N/A 熔点：N/A	132031-40-4	C₂₀H₂₀O₆
2-Cyano-3-(1-naphthyl)propionic Acid	2-Cyano-3-(1-naphthyl)propionic Acid	分子量：225.24 密度：N/A 沸点：N/A 熔点：N/A	132413-84-4	C₁₄H₁₁NO₂
3-Tert-butyl-4,5-dihydro-1,2-oxazole-5-carboxylic acid	3-Tert-butyl-4,5-dihydro-1,2-oxazole-5-carboxylic acid	分子量：171.19 密度：N/A 沸点：N/A 熔点：N/A	1601085-89-5	C₈H₁₃NO₃
I+/--D-Glucopyranose, 4,6-O-ethylidene-1,2-O-(phenylmethylene)-	I+/--D-Glucopyranose, 4,6-O-ethylidene-1,2-O-(phenylmethylene)-	分子量：294.30 密度：N/A 沸点：N/A 熔点：N/A	130851-34-2	C₁₅H₁₈O₆
(R)-2-Acetoxyhexadecanoic acid	(R)-2-Acetoxyhexadecanoic acid	分子量：314.5 密度：N/A 沸点：N/A 熔点：N/A	95603-89-7	C₁₈H₃₄O₄
Stigmast-5-en-3beta-yl docosanoate	Stigmast-5-en-3beta-yl docosanoate	分子量：737.3 密度：N/A 沸点：N/A 熔点：N/A	22554-56-9	C₅₁H₉₂O₂
Methyl 3-[4-[2-[[2-[[(1,1-dimethylethoxy)carbonyl]amino]acetyl]amino]ethyl]phenoxy]benzenepropanoate	Methyl 3-[4-[2-[[2-[[(1,1-dimethylethoxy)carbonyl]amino]acetyl]amino]ethyl]phenoxy]benzenepropanoate	分子量：456.5 密度：N/A 沸点：N/A 熔点：N/A	129150-88-5	C₂₅H₃₂N₂O₆
(2I(2),3I(2),4I+/-)-3-(I(2)-D-Glucopyranuronosyloxy)-2-hydroxyolean-12-ene-23,28-dioic acid	(2I(2),3I(2),4I+/-)-3-(I(2)-D-Glucopyranuronosyloxy)-2-hydroxyolean-12-ene-23,28-dioic acid	分子量：678.8 密度：N/A 沸点：N/A 熔点：N/A	84161-90-0	C₃₆H₅₄O₁₂
(Z)-2-(trimethylsilyl)ethyl N,N'-diisopropylcarbamimidate	(Z)-2-(trimethylsilyl)ethyl N,N'-diisopropylcarbamimidate	分子量：244.45 密度：N/A 沸点：N/A 熔点：N/A	146009-80-5	C₁₂H₂₈N₂OSi
7-Bromomethyl3-chlorobenzo[b]thiophene	7-Bromomethyl3-chlorobenzo[b]thiophene	分子量：261.57 密度：N/A 沸点：N/A 熔点：N/A	88415-30-9	C₉H₆BrClS
Methyl 3-methylquinoline-4-carboxylate	Methyl 3-methylquinoline-4-carboxylate	分子量：201.22 密度：N/A 沸点：N/A 熔点：N/A	21233-67-0	C₁₂H₁₁NO₂
(3-Methylquinolin-4-yl)methanol	(3-Methylquinolin-4-yl)methanol	分子量：173.21 密度：N/A 沸点：N/A 熔点：N/A	130955-01-0	C₁₁H₁₁NO
tert-butyl N-[4-(ethoxysulfonyl)but-3-en-2-yl]carbamate	tert-butyl N-[4-(ethoxysulfonyl)but-3-en-2-yl]carbamate	分子量：279.36 密度：N/A 沸点：N/A 熔点：N/A	1824685-77-9	C₁₁H₂₁NO₅S
Methyl spiro[1,3-dioxolane-2,5'-norbornane]-2'-carboxylate	Methyl spiro[1,3-dioxolane-2,5'-norbornane]-2'-carboxylate	分子量：212.24 密度：N/A 沸点：N/A 熔点：N/A	2385976-20-3	C₁₁H₁₆O₄
4-(4-{[(Prop-2-en-1-yloxy)carbonyl]amino}phenyl)butanoic acid	4-(4-{[(Prop-2-en-1-yloxy)carbonyl]amino}phenyl)butanoic acid	分子量：263.29 密度：N/A 沸点：N/A 熔点：N/A	1042429-78-6	C₁₄H₁₇NO₄
3-[(2-Amino-6-chloro-4-pyrimidinyl)amino]cyclobutanemethanol	3-[(2-Amino-6-chloro-4-pyrimidinyl)amino]cyclobutanemethanol	分子量：228.68 密度：N/A 沸点：N/A 熔点：N/A	130369-01-6	C₉H₁₃ClN₄O
piplartine dimer A	piplartine dimer A	分子量：634.7 密度：N/A 沸点：N/A 熔点：N/A	80248-71-1	C₃₄H₃₈N₂O₁₀
Ethyl 4-chloro-2-(ethoxycarbonyl)-1H-indole-3-propanoate	Ethyl 4-chloro-2-(ethoxycarbonyl)-1H-indole-3-propanoate	分子量：323.77 密度：N/A 沸点：N/A 熔点：N/A	130798-57-1	C₁₆H₁₈ClNO₄
Ethyl 1,6,7,8-tetrahydro-9-nitro-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxylate	Ethyl 1,6,7,8-tetrahydro-9-nitro-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxylate	分子量：267.24 密度：N/A 沸点：N/A 熔点：N/A	129986-69-2	C₁₁H₁₃N₃O₅
3-Chloro-6-fluoro-2-methoxyquinoxaline	3-Chloro-6-fluoro-2-methoxyquinoxaline	分子量：212.61 密度：N/A 沸点：N/A 熔点：N/A	2091064-33-2	C₉H₆ClFN₂O
(2E)-but-2-enedioic acid; N-methyl-N-[2-(piperidin-4-yl)ethyl]benzamide	(2E)-but-2-enedioic acid; N-methyl-N-[2-(piperidin-4-yl)ethyl]benzamide	分子量：246.35 密度：N/A 沸点：N/A 熔点：N/A	120014-28-0	C₁₅H₂₂N₂O
N-(1,3-Benzothiazol-2-YL)-N-[2-(dimethylamino)ethyl]-5-nitro-1-benzothiophene-2-carboxamide hydrochloride	N-(1,3-Benzothiazol-2-YL)-N-[2-(dimethylamino)ethyl]-5-nitro-1-benzothiophene-2-carboxamide hydrochloride	分子量：463.0 密度：N/A 沸点：N/A 熔点：N/A	1329862-87-4	C₂₀H₁₉ClN₄O₃S₂
(E)-1-(4-(5-chloro-4-methylbenzo[d]thiazol-2-yl)piperazin-1-yl)-3-(3-nitrophenyl)prop-2-en-1-one	(E)-1-(4-(5-chloro-4-methylbenzo[d]thiazol-2-yl)piperazin-1-yl)-3-(3-nitrophenyl)prop-2-en-1-one	分子量：442.9 密度：N/A 沸点：N/A 熔点：N/A	886918-55-4	C₂₁H₁₉ClN₄O₃S
1-Nitro-5-(phenylmethoxy)naphthalene	1-Nitro-5-(phenylmethoxy)naphthalene	分子量：279.29 密度：N/A 沸点：N/A 熔点：N/A	128923-94-4	C₁₇H₁₃NO₃
rac-(3R,4S)-4-benzyloxolan-3-ol	rac-(3R,4S)-4-benzyloxolan-3-ol	分子量：178.23 密度：N/A 沸点：N/A 熔点：N/A	130871-10-2	C₁₁H₁₄O₂
3-((4-chlorophenyl)sulfonyl)-N-(5-(4-(methylsulfonyl)phenyl)-1,3,4-oxadiazol-2-yl)propanamide	3-((4-chlorophenyl)sulfonyl)-N-(5-(4-(methylsulfonyl)phenyl)-1,3,4-oxadiazol-2-yl)propanamide	分子量：469.9 密度：N/A 沸点：N/A 熔点：N/A	886915-13-5	C₁₈H₁₆ClN₃O₆S₂
(3R,4R)-4-Phenoxytetrahydrofuran-3-ol	(3R,4R)-4-Phenoxytetrahydrofuran-3-ol	分子量：180.20 密度：N/A 沸点：N/A 熔点：N/A	130871-12-4	C₁₀H₁₂O₃
2-Hydroxy-2-fluoromethylpropionic acid	2-Hydroxy-2-fluoromethylpropionic acid	分子量：122.09 密度：N/A 沸点：N/A 熔点：N/A	663-66-1	C₄H₇FO₃
N-methyl-4-nitro-3-(trifluoromethyl)aniline	N-methyl-4-nitro-3-(trifluoromethyl)aniline	分子量：220.15 密度：N/A 沸点：N/A 熔点：N/A	52807-22-4	C₈H₇F₃N₂O₂
N-(6-benzyl-3-cyano-4,5,6,7-tetrahydrothieno[2,3-c]pyridin-2-yl)-3-(ethylsulfonyl)benzamide hydrochloride	N-(6-benzyl-3-cyano-4,5,6,7-tetrahydrothieno[2,3-c]pyridin-2-yl)-3-(ethylsulfonyl)benzamide hydrochloride	分子量：502.1 密度：N/A 沸点：N/A 熔点：N/A	1216500-89-8	C₂₄H₂₄ClN₃O₃S₂
(E)-ethyl 3-ethyl-2-((3-(ethylsulfonyl)benzoyl)imino)-2,3-dihydrobenzo[d]thiazole-6-carboxylate	(E)-ethyl 3-ethyl-2-((3-(ethylsulfonyl)benzoyl)imino)-2,3-dihydrobenzo[d]thiazole-6-carboxylate	分子量：446.5 密度：N/A 沸点：N/A 熔点：N/A	886920-55-4	C₂₁H₂₂N₂O₅S₂
2-Thienylmethyl 3-methyl-2-butenoate	2-Thienylmethyl 3-methyl-2-butenoate	分子量：196.27 密度：N/A 沸点：N/A 熔点：N/A	133118-12-4	C₁₀H₁₂O₂S
7H-Perfluoro-4-methyl-3,6-dioxaoctanesulfonyl fluoride	7H-Perfluoro-4-methyl-3,6-dioxaoctanesulfonyl fluoride	分子量：466.12 密度：N/A 沸点：N/A 熔点：N/A	75549-02-9	C₇HF₁₅O₄S
(6aR,13bS)-11-chloro-7-methyl-5,6,6a,8,9,13b-hexahydronaphtho[1,2-a][3]benzazepin-12-ol	(6aR,13bS)-11-chloro-7-methyl-5,6,6a,8,9,13b-hexahydronaphtho[1,2-a][3]benzazepin-12-ol	分子量：313.8 密度：N/A 沸点：N/A 熔点：N/A	112108-02-8	C₁₉H₂₀ClNO
6-(4-methoxyphenyl)-3-phenyl-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazine hydrobromide	6-(4-methoxyphenyl)-3-phenyl-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazine hydrobromide	分子量：403.3 密度：N/A 沸点：N/A 熔点：N/A	1179452-75-5	C₁₇H₁₅BrN₄OS
N-(4-chlorobenzo[d]thiazol-2-yl)-N-(3-(dimethylamino)propyl)-3-tosylpropanamide hydrochloride	N-(4-chlorobenzo[d]thiazol-2-yl)-N-(3-(dimethylamino)propyl)-3-tosylpropanamide hydrochloride	分子量：516.5 密度：N/A 沸点：N/A 熔点：N/A	1216421-33-8	C₂₂H₂₇Cl₂N₃O₃S₂
N-(2-(dimethylamino)ethyl)-N-(5,7-dimethylbenzo[d]thiazol-2-yl)-3-tosylpropanamide hydrochloride	N-(2-(dimethylamino)ethyl)-N-(5,7-dimethylbenzo[d]thiazol-2-yl)-3-tosylpropanamide hydrochloride	分子量：496.1 密度：N/A 沸点：N/A 熔点：N/A	1329466-59-2	C₂₃H₃₀ClN₃O₃S₂
N-(3-(dimethylamino)propyl)-2-((4-fluorophenyl)sulfonyl)-N-(4-methoxy-7-methylbenzo[d]thiazol-2-yl)acetamide hydrochloride	N-(3-(dimethylamino)propyl)-2-((4-fluorophenyl)sulfonyl)-N-(4-methoxy-7-methylbenzo[d]thiazol-2-yl)acetamide hydrochloride	分子量：516.1 密度：N/A 沸点：N/A 熔点：N/A	1177476-37-7	C₂₂H₂₇ClFN₃O₄S₂
(1r,4r)-4-[(Trifluoroacetamido)methyl]cyclohexane-1-carboxylic acid	(1r,4r)-4-[(Trifluoroacetamido)methyl]cyclohexane-1-carboxylic acid	分子量：253.22 密度：N/A 沸点：N/A 熔点：N/A	127946-34-3	C₁₀H₁₄F₃NO₃
3-(2,2,2-Trifluoroacetamido)cyclohexane-1-carboxylic acid	3-(2,2,2-Trifluoroacetamido)cyclohexane-1-carboxylic acid	分子量：239.19 密度：N/A 沸点：N/A 熔点：N/A	1342436-18-3	C₉H₁₂F₃NO₃
4-Ethyl-2,3-dihydro-1,4-benzoxazin-7-amine	4-Ethyl-2,3-dihydro-1,4-benzoxazin-7-amine	分子量：178.23 密度：N/A 沸点：N/A 熔点：N/A	105297-44-7	C₁₀H₁₄N₂O
N-(3,3-diphenylpropyl)-4-oxo-2,4,5,6-tetrahydro-1H-pyrrolo[3,2,1-ij]quinoline-8-sulfonamide	N-(3,3-diphenylpropyl)-4-oxo-2,4,5,6-tetrahydro-1H-pyrrolo[3,2,1-ij]quinoline-8-sulfonamide	分子量：446.6 密度：N/A 沸点：N/A 熔点：N/A	898462-87-8	C₂₆H₂₆N₂O₃S
Spiro[bicyclo[2.2.2]octane-2,2'-[1,3]dioxolan]-5-one	Spiro[bicyclo[2.2.2]octane-2,2'-[1,3]dioxolan]-5-one	分子量：182.22 密度：N/A 沸点：N/A 熔点：N/A	132435-30-4	C₁₀H₁₄O₃
4-(S)-(t-butoxycarbonylamino)-1-(trifluoroacetyl)3-oxo-1,2-diazolidine	4-(S)-(t-butoxycarbonylamino)-1-(trifluoroacetyl)3-oxo-1,2-diazolidine	分子量：297.23 密度：N/A 沸点：N/A 熔点：N/A	106693-58-7	C₁₀H₁₄F₃N₃O₄
2-(1H-indazol-5-ylamino)benzoic acid	2-(1H-indazol-5-ylamino)benzoic acid	分子量：253.26 密度：N/A 沸点：N/A 熔点：N/A	132302-53-5	C₁₄H₁₁N₃O₂
2-Ethoxy-5-hydroxynaphthalene-1,4-dione	2-Ethoxy-5-hydroxynaphthalene-1,4-dione	分子量：218.20 密度：N/A 沸点：N/A 熔点：N/A	106697-11-4	C₁₂H₁₀O₄
N1-(4-methylbenzyl)-N2-(3-oxo-1,2,3,5,6,7-hexahydropyrido[3,2,1-ij]quinolin-9-yl)oxalamide	N1-(4-methylbenzyl)-N2-(3-oxo-1,2,3,5,6,7-hexahydropyrido[3,2,1-ij]quinolin-9-yl)oxalamide	分子量：377.4 密度：N/A 沸点：N/A 熔点：N/A	898412-16-3	C₂₂H₂₃N₃O₃
N'-[(4-fluorophenyl)methyl]-N-{2-oxo-1-azatricyclo[7.3.1.0^{5,13}]trideca-5,7,9(13)-trien-7-yl}ethanediamide	N'-[(4-fluorophenyl)methyl]-N-{2-oxo-1-azatricyclo[7.3.1.0^{5,13}]trideca-5,7,9(13)-trien-7-yl}ethanediamide	分子量：381.4 密度：N/A 沸点：N/A 熔点：N/A	898455-95-3	C₂₁H₂₀FN₃O₃