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
N-Cyclobutyl-[1,3]thiazolo[5,4-b]pyridin-2-amine	N-Cyclobutyl-[1,3]thiazolo[5,4-b]pyridin-2-amine	分子量：205.28 密度：N/A 沸点：N/A 熔点：N/A	2060028-35-3	C₁₀H₁₁N₃S
2-[5-(3-Cyanophenyl)-3-methylfuran-2-yl]acetic acid	2-[5-(3-Cyanophenyl)-3-methylfuran-2-yl]acetic acid	分子量：241.24 密度：N/A 沸点：N/A 熔点：N/A	2060046-50-4	C₁₄H₁₁NO₃
11-(Propan-2-yl)-2,3,10,11-tetraazatricyclo[6.4.1.0,4,13]trideca-1,4(13),5,7,9-pentaen-12-one	11-(Propan-2-yl)-2,3,10,11-tetraazatricyclo[6.4.1.0,4,13]trideca-1,4(13),5,7,9-pentaen-12-one	分子量：228.25 密度：N/A 沸点：N/A 熔点：N/A	2060028-23-9	C₁₂H₁₂N₄O
6-Formyl-[1,2,4]triazolo[1,5-a]pyridine-8-carboxylic acid	6-Formyl-[1,2,4]triazolo[1,5-a]pyridine-8-carboxylic acid	分子量：191.14 密度：N/A 沸点：N/A 熔点：N/A	2060050-01-1	C₈H₅N₃O₃
({[1,3]Thiazolo[5,4-b]pyridin-2-yl}amino)formonitrile	({[1,3]Thiazolo[5,4-b]pyridin-2-yl}amino)formonitrile	分子量：176.20 密度：N/A 沸点：N/A 熔点：N/A	2060046-49-1	C₇H₄N₄S
Methyl 2-(4-cyclopropyl-2-oxo-1,2-dihydropyridin-1-yl)acetate	Methyl 2-(4-cyclopropyl-2-oxo-1,2-dihydropyridin-1-yl)acetate	分子量：207.23 密度：N/A 沸点：N/A 熔点：N/A	2059987-90-3	C₁₁H₁₃NO₃
5-Cyclobutyl-1-(4-methoxyphenyl)-1H-1,2,4-triazole-3-carboxylic acid	5-Cyclobutyl-1-(4-methoxyphenyl)-1H-1,2,4-triazole-3-carboxylic acid	分子量：273.29 密度：N/A 沸点：N/A 熔点：N/A	2060060-45-7	C₁₄H₁₅N₃O₃
3-Methyl-2-oxo-1-propyl-2,3-dihydro-1H-imidazole-4-carboxylic acid	3-Methyl-2-oxo-1-propyl-2,3-dihydro-1H-imidazole-4-carboxylic acid	分子量：184.19 密度：N/A 沸点：N/A 熔点：N/A	2060028-55-7	C₈H₁₂N₂O₃
3-Methyl-2-oxo-1-[(pyridin-4-yl)methyl]-2,3-dihydro-1H-imidazole-4-carboxylic acid	3-Methyl-2-oxo-1-[(pyridin-4-yl)methyl]-2,3-dihydro-1H-imidazole-4-carboxylic acid	分子量：233.22 密度：N/A 沸点：N/A 熔点：N/A	2059999-86-7	C₁₁H₁₁N₃O₃
(2S,4R)-2-(azidomethyl)-4-(3-methylphenyl)oxolane	(2S,4R)-2-(azidomethyl)-4-(3-methylphenyl)oxolane	分子量：217.27 密度：N/A 沸点：N/A 熔点：N/A	2059912-54-6	C₁₂H₁₅N₃O
(2S,5R)-2-(Bromomethyl)-5-(4-nitrophenyl)oxane	(2S,5R)-2-(Bromomethyl)-5-(4-nitrophenyl)oxane	分子量：300.15 密度：N/A 沸点：N/A 熔点：N/A	2059910-40-4	C₁₂H₁₄BrNO₃
(6-bromo-1H-benzimidazol-4-yl)-morpholin-4-ylmethanone	(6-bromo-1H-benzimidazol-4-yl)-morpholin-4-ylmethanone	分子量：310.15 密度：N/A 沸点：N/A 熔点：N/A	1926990-84-2	C₁₂H₁₂BrN₃O₂
7-Chlorothieno[2,3-c]pyridine-4-carbothioamide	7-Chlorothieno[2,3-c]pyridine-4-carbothioamide	分子量：228.7 密度：N/A 沸点：N/A 熔点：N/A	2059987-84-5	C₈H₅ClN₂S₂
[(2S,4R)-4-(2-fluorophenyl)oxolan-2-yl]methanamine	[(2S,4R)-4-(2-fluorophenyl)oxolan-2-yl]methanamine	分子量：195.23 密度：N/A 沸点：N/A 熔点：N/A	2059914-72-4	C₁₁H₁₄FNO
(5R)-3,4-Dihydroxy-5-[(1R)-1-hydroxy-2-[(1-methyl-1H-imidazol-2-yl)sulfanyl]ethyl]-2,5-dihydrofuran-2-one	(5R)-3,4-Dihydroxy-5-[(1R)-1-hydroxy-2-[(1-methyl-1H-imidazol-2-yl)sulfanyl]ethyl]-2,5-dihydrofuran-2-one	分子量：272.28 密度：N/A 沸点：N/A 熔点：N/A	2059909-29-2	C₁₀H₁₂N₂O₅S
Methyl 2-[4-(2-fluorophenyl)-2-oxo-1,2-dihydropyridin-1-yl]acetate	Methyl 2-[4-(2-fluorophenyl)-2-oxo-1,2-dihydropyridin-1-yl]acetate	分子量：261.25 密度：N/A 沸点：N/A 熔点：N/A	2059944-56-6	C₁₄H₁₂FNO₃
(2S)-1-(1-Benzyl-1H-1,2,3-triazol-4-yl)propan-2-amine	(2S)-1-(1-Benzyl-1H-1,2,3-triazol-4-yl)propan-2-amine	分子量：216.28 密度：N/A 沸点：N/A 熔点：N/A	2059917-38-1	C₁₂H₁₆N₄
5-[(Diethylamino)methyl]-N,N-dimethyl-1H-1,2,4-triazol-3-amine	5-[(Diethylamino)methyl]-N,N-dimethyl-1H-1,2,4-triazol-3-amine	分子量：197.28 密度：N/A 沸点：N/A 熔点：N/A	2060036-26-0	C₉H₁₉N₅
8-Bromo-6-methylisoquinoline-5-sulfonyl chloride	8-Bromo-6-methylisoquinoline-5-sulfonyl chloride	分子量：320.59 密度：N/A 沸点：N/A 熔点：N/A	2060039-83-8	C₁₀H₇BrClNO₂S
2-[2-Oxo-5-(propan-2-yl)-2,3-dihydro-1,3,4-thiadiazol-3-yl]ethane-1-sulfonyl chloride	2-[2-Oxo-5-(propan-2-yl)-2,3-dihydro-1,3,4-thiadiazol-3-yl]ethane-1-sulfonyl chloride	分子量：270.8 密度：N/A 沸点：N/A 熔点：N/A	2060062-14-6	C₇H₁₁ClN₂O₃S₂
5-({[(Benzyloxy)carbonyl]amino}methyl)spiro[2.3]hexane-5-carboxylic acid	5-({[(Benzyloxy)carbonyl]amino}methyl)spiro[2.3]hexane-5-carboxylic acid	分子量：289.33 密度：N/A 沸点：N/A 熔点：N/A	2059998-95-5	C₁₆H₁₉NO₄
5-tert-Butyl-1-(4-nitrophenyl)-1H-1,2,4-triazole-3-carboxylic acid	5-tert-Butyl-1-(4-nitrophenyl)-1H-1,2,4-triazole-3-carboxylic acid	分子量：290.27 密度：N/A 沸点：N/A 熔点：N/A	2060060-39-9	C₁₃H₁₄N₄O₄
2-(Ethoxymethyl)thiophene-3-carboxylic acid	2-(Ethoxymethyl)thiophene-3-carboxylic acid	分子量：186.23 密度：N/A 沸点：N/A 熔点：N/A	2059976-18-8	C₈H₁₀O₃S
N-Ethyl-3-fluoro-2-(trifluoromethyl)benzene-1-sulfonamide	N-Ethyl-3-fluoro-2-(trifluoromethyl)benzene-1-sulfonamide	分子量：271.23 密度：N/A 沸点：N/A 熔点：N/A	2059994-08-8	C₉H₉F₄NO₂S
N-(Cyclopropylmethyl)-4H,5H,6H,7H-[1,3]thiazolo[5,4-b]pyridin-2-amine	N-(Cyclopropylmethyl)-4H,5H,6H,7H-[1,3]thiazolo[5,4-b]pyridin-2-amine	分子量：209.31 密度：N/A 沸点：N/A 熔点：N/A	2060059-51-8	C₁₀H₁₅N₃S
1-Benzyl-3-methyl-2-oxo-2,3-dihydro-1H-imidazole-4-carboxylic acid	1-Benzyl-3-methyl-2-oxo-2,3-dihydro-1H-imidazole-4-carboxylic acid	分子量：232.23 密度：N/A 沸点：N/A 熔点：N/A	2059949-36-7	C₁₂H₁₂N₂O₃
Methyl 3-[(dimethylcarbamoyl)sulfonyl]thiophene-2-carboxylate	Methyl 3-[(dimethylcarbamoyl)sulfonyl]thiophene-2-carboxylate	分子量：277.3 密度：N/A 沸点：N/A 熔点：N/A	2059950-38-6	C₉H₁₁NO₅S₂
2-[3-Methyl-5-(thiophen-2-yl)furan-2-yl]acetic acid	2-[3-Methyl-5-(thiophen-2-yl)furan-2-yl]acetic acid	分子量：222.26 密度：N/A 沸点：N/A 熔点：N/A	2059971-54-7	C₁₁H₁₀O₃S
1-[6-(4-Nitrophenyl)-4-(trifluoromethyl)pyridazin-3-yl]ethan-1-one	1-[6-(4-Nitrophenyl)-4-(trifluoromethyl)pyridazin-3-yl]ethan-1-one	分子量：311.22 密度：N/A 沸点：N/A 熔点：N/A	2060008-59-3	C₁₃H₈F₃N₃O₃
3-Ethyl-4H,5H,7H,8H-6lambda6-[1,2,3]triazolo[1,5-d][1,4]thiazepine-6,6-dione	3-Ethyl-4H,5H,7H,8H-6lambda6-[1,2,3]triazolo[1,5-d][1,4]thiazepine-6,6-dione	分子量：215.28 密度：N/A 沸点：N/A 熔点：N/A	2059988-86-0	C₈H₁₃N₃O₂S
6H,7H-Furo[2,3-d]pyridazin-7-one	6H,7H-Furo[2,3-d]pyridazin-7-one	分子量：136.11 密度：N/A 沸点：N/A 熔点：N/A	13177-73-6	C₆H₄N₂O₂
tert-butyl (2S,4S)-4-fluoro-2-methylpyrrolidine-2-carboxylate	tert-butyl (2S,4S)-4-fluoro-2-methylpyrrolidine-2-carboxylate	分子量：203.25 密度：N/A 沸点：N/A 熔点：N/A	2580091-06-9	C₁₀H₁₈FNO₂
4-Cyclohexyl-1-fluoro-2-(trifluoromethyl)benzene	4-Cyclohexyl-1-fluoro-2-(trifluoromethyl)benzene	分子量：246.24 密度：N/A 沸点：N/A 熔点：N/A	2060050-63-5	C₁₃H₁₄F₄
7-Fluoro-2-methyl-1,2-dihydrophthalazin-1-one	7-Fluoro-2-methyl-1,2-dihydrophthalazin-1-one	分子量：178.16 密度：N/A 沸点：N/A 熔点：N/A	2059942-30-0	C₉H₇FN₂O
3-(tert-Butoxy)isoquinolin-1-amine	3-(tert-Butoxy)isoquinolin-1-amine	分子量：216.28 密度：N/A 沸点：N/A 熔点：N/A	2060039-24-7	C₁₃H₁₆N₂O
{2-Methyl-5-[(piperazin-1-yl)methyl]phenyl}methanamine	{2-Methyl-5-[(piperazin-1-yl)methyl]phenyl}methanamine	分子量：219.33 密度：N/A 沸点：N/A 熔点：N/A	2060048-72-6	C₁₃H₂₁N₃
Ethyl 1-(4-methylpyridin-2-yl)-1H-pyrazole-3-carboxylate	Ethyl 1-(4-methylpyridin-2-yl)-1H-pyrazole-3-carboxylate	分子量：231.25 密度：N/A 沸点：N/A 熔点：N/A	2060046-60-6	C₁₂H₁₃N₃O₂
4-(2,6-Difluorophenyl)oxane	4-(2,6-Difluorophenyl)oxane	分子量：198.21 密度：N/A 沸点：N/A 熔点：N/A	2060008-24-2	C₁₁H₁₂F₂O
3-chloro-2,2-dimethyl-N-{[1-(triphenylmethyl)-1H-1,2,3,4-tetrazol-5-yl]methyl}propanamide	3-chloro-2,2-dimethyl-N-{[1-(triphenylmethyl)-1H-1,2,3,4-tetrazol-5-yl]methyl}propanamide	分子量：460.0 密度：N/A 沸点：N/A 熔点：N/A	2060027-92-9	C₂₆H₂₆ClN₅O
[2-(3-Aminophenyl)-4-methyl-1,3-oxazol-5-yl]methanol	[2-(3-Aminophenyl)-4-methyl-1,3-oxazol-5-yl]methanol	分子量：204.22 密度：N/A 沸点：N/A 熔点：N/A	2060026-79-9	C₁₁H₁₂N₂O₂
2-Fluoro-6-(furan-2-yl)pyridine-3-sulfonyl fluoride	2-Fluoro-6-(furan-2-yl)pyridine-3-sulfonyl fluoride	分子量：245.20 密度：N/A 沸点：N/A 熔点：N/A	2059975-03-8	C₉H₅F₂NO₃S
1-Cyclopropyl-4-formyl-1H-pyrazole-3-carboxylic acid	1-Cyclopropyl-4-formyl-1H-pyrazole-3-carboxylic acid	分子量：180.16 密度：N/A 沸点：N/A 熔点：N/A	2060059-52-9	C₈H₈N₂O₃
6-(2-Fluoropropyl)-4-methylpyridin-2-amine oxalate	6-(2-Fluoropropyl)-4-methylpyridin-2-amine oxalate	分子量：258.25 密度：N/A 沸点：N/A 熔点：N/A	1146620-81-6	C₁₁H₁₅FN₂O₄
2-(10-(4-(tert-Butyl)phenyl)anthracen-9-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane	2-(10-(4-(tert-Butyl)phenyl)anthracen-9-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane	分子量：436.4 密度：N/A 沸点：N/A 熔点：N/A	1374785-59-7	C₃₀H₃₃BO₂
Methyl 2-[2-(2,4-difluorophenyl)-5-methyl-3-oxo-2,3-dihydro-1H-pyrazol-4-yl]acetate	Methyl 2-[2-(2,4-difluorophenyl)-5-methyl-3-oxo-2,3-dihydro-1H-pyrazol-4-yl]acetate	分子量：282.24 密度：N/A 沸点：N/A 熔点：N/A	2059954-81-1	C₁₃H₁₂F₂N₂O₃
Levopropoxyphene dibudinate	Levopropoxyphene dibudinate	分子量：740.0 密度：N/A 沸点：N/A 熔点：N/A	31852-19-4	C₄₀H₅₃NO₈S₂
Mcpa-isopropanolamine	Mcpa-isopropanolamine	分子量：275.73 密度：N/A 沸点：N/A 熔点：N/A	42459-69-8	C₁₂H₁₈ClNO₄
Mcpa diisopropanolamine	Mcpa diisopropanolamine	分子量：333.81 密度：N/A 沸点：N/A 熔点：N/A	42459-70-1	C₁₅H₂₄ClNO₅
Drisapersen sodium	Drisapersen sodium	分子量：7395 密度：N/A 沸点：N/A 熔点：N/A	1181666-20-5	C₂₁₁H₂₅₆N₇₆Na₁₉O₁₁₉P₁₉S₁₉
CID 121494122	CID 121494122	分子量：7583 密度：N/A 沸点：N/A 熔点：N/A	1573402-50-2	C₂₃₀H₃₀₁N₆₃Na₁₉O₁₂₅P₁₉S₁₉