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-(2,4-Dioxo-3-(3-(4-phenylpiperazin-1-yl)propyl)-1,2,3,4-tetrahydroquinazolin-6-yl)acetamide maleate	N-(2,4-Dioxo-3-(3-(4-phenylpiperazin-1-yl)propyl)-1,2,3,4-tetrahydroquinazolin-6-yl)acetamide maleate	分子量：537.6 密度：N/A 沸点：N/A 熔点：N/A	4052-22-6	C₂₇H₃₁N₅O₇
4-(Azepan-1-yl)-1,2,5-thiadiazolidin-3-one	4-(Azepan-1-yl)-1,2,5-thiadiazolidin-3-one	分子量：201.29 密度：N/A 沸点：N/A 熔点：N/A	1234569-06-2	C₈H₁₅N₃OS
ethyl 1-[(4-oxo-4aH-quinazolin-2-yl)methyl]piperidine-3-carboxylate	ethyl 1-[(4-oxo-4aH-quinazolin-2-yl)methyl]piperidine-3-carboxylate	分子量：315.37 密度：N/A 沸点：N/A 熔点：N/A	896665-81-9	C₁₇H₂₁N₃O₃
L-Prolyl-L-valyl-L-lysyl-N~5~-(diaminomethylidene)-L-ornithyl-N~5~-(diaminomethylidene)-L-ornithyl-L-leucyl-L-phenylalanyl-L-leucine	L-Prolyl-L-valyl-L-lysyl-N~5~-(diaminomethylidene)-L-ornithyl-N~5~-(diaminomethylidene)-L-ornithyl-L-leucyl-L-phenylalanyl-L-leucine	分子量：1028.3 密度：N/A 沸点：N/A 熔点：N/A	596095-60-2	C₄₉H₈₅N₁₅O₉
1-Methyl-5-naphthalen-1-yl-4a,5,6,7,8,8a-hexahydropyrido[2,3-d]pyrimidine-2,4-dione	1-Methyl-5-naphthalen-1-yl-4a,5,6,7,8,8a-hexahydropyrido[2,3-d]pyrimidine-2,4-dione	分子量：309.4 密度：N/A 沸点：N/A 熔点：N/A	908532-05-8	C₁₈H₁₉N₃O₂
1-[Hexahydro-4-(3-phenyl-2-quinoxalinyl)-1H-1,4-diazepin-1-yl]-2-methyl-2-buten-1-one	1-[Hexahydro-4-(3-phenyl-2-quinoxalinyl)-1H-1,4-diazepin-1-yl]-2-methyl-2-buten-1-one	分子量：386.5 密度：N/A 沸点：N/A 熔点：N/A	1007542-29-1	C₂₄H₂₆N₄O
3-Amino-1-(4-fluorophenyl)-1H-pyrazole-4-carboxylicacid	3-Amino-1-(4-fluorophenyl)-1H-pyrazole-4-carboxylicacid	分子量：221.19 密度：N/A 沸点：N/A 熔点：N/A	1094346-60-7	C₁₀H₈FN₃O₂
N'-hydroxy-4-(morpholin-4-yl)-3-(trifluoromethyl)benzene-1-carboximidamide	N'-hydroxy-4-(morpholin-4-yl)-3-(trifluoromethyl)benzene-1-carboximidamide	分子量：289.25 密度：N/A 沸点：N/A 熔点：N/A	1035217-18-5	C₁₂H₁₄F₃N₃O₂
2-[4-(1,3-Benzodioxol-5-ylmethyl)piperazin-1-yl]-5-hexyl-6-methyl-1,3-diazinan-4-one	2-[4-(1,3-Benzodioxol-5-ylmethyl)piperazin-1-yl]-5-hexyl-6-methyl-1,3-diazinan-4-one	分子量：416.6 密度：N/A 沸点：N/A 熔点：N/A	924875-71-8	C₂₃H₃₆N₄O₃
1-Amino-3-(3-methyl-1h-pyrazol-1-yl)cyclohexane-1-carboxamide	1-Amino-3-(3-methyl-1h-pyrazol-1-yl)cyclohexane-1-carboxamide	分子量：222.29 密度：N/A 沸点：N/A 熔点：N/A	1506007-14-2	C₁₁H₁₈N₄O
1-(4-Fluorophenyl)-3-isopropoxypropan-2-amine	1-(4-Fluorophenyl)-3-isopropoxypropan-2-amine	分子量：211.28 密度：N/A 沸点：N/A 熔点：N/A	1507286-16-9	C₁₂H₁₈FNO
2-(4-Ethylpiperazin-1-yl)-6-(2-methoxyphenyl)-1,3-diazinan-4-one	2-(4-Ethylpiperazin-1-yl)-6-(2-methoxyphenyl)-1,3-diazinan-4-one	分子量：318.4 密度：N/A 沸点：N/A 熔点：N/A	903461-59-6	C₁₇H₂₆N₄O₂
5-(2-Methoxyphenyl)-1-methyl-4a,5,6,7,8,8a-hexahydropyrido[2,3-d]pyrimidine-2,4-dione	5-(2-Methoxyphenyl)-1-methyl-4a,5,6,7,8,8a-hexahydropyrido[2,3-d]pyrimidine-2,4-dione	分子量：289.33 密度：N/A 沸点：N/A 熔点：N/A	908532-17-2	C₁₅H₁₉N₃O₃
2-(2,6-Dimethylanilino)-3-hydroxy-naphthalene-1,4-dione	2-(2,6-Dimethylanilino)-3-hydroxy-naphthalene-1,4-dione	分子量：293.3 密度：N/A 沸点：N/A 熔点：N/A	1448684-75-0	C₁₈H₁₅NO₃
4-[(5-Amino-2-pyrimidinyl)oxy]-3-methylbenzonitrile	4-[(5-Amino-2-pyrimidinyl)oxy]-3-methylbenzonitrile	分子量：226.23 密度：N/A 沸点：N/A 熔点：N/A	1311139-13-5	C₁₂H₁₀N₄O
5-(1-hydroxypropan-2-yl)-3H-2-benzofuran-1-one	5-(1-hydroxypropan-2-yl)-3H-2-benzofuran-1-one	分子量：192.21 密度：N/A 沸点：N/A 熔点：N/A	1374574-08-9	C₁₁H₁₂O₃
tert-butyl N-[(3S)-1-(2-chloroquinoline-4-carbonyl)pyrrolidin-3-yl]carbamate	tert-butyl N-[(3S)-1-(2-chloroquinoline-4-carbonyl)pyrrolidin-3-yl]carbamate	分子量：375.8 密度：N/A 沸点：N/A 熔点：N/A	256526-76-8	C₁₉H₂₂ClN₃O₃
Tert-butyl 4-(2-(4-(methylsulfonyl)phenyl)acetamido)-4-ethylpiperidine-1-carboxylate	Tert-butyl 4-(2-(4-(methylsulfonyl)phenyl)acetamido)-4-ethylpiperidine-1-carboxylate	分子量：424.6 密度：N/A 沸点：N/A 熔点：N/A	872850-42-5	C₂₁H₃₂N₂O₅S
tert-Butyl 4-(3-(quinoxalin-2-yloxy)propyl)piperidine-1-carboxylate	tert-Butyl 4-(3-(quinoxalin-2-yloxy)propyl)piperidine-1-carboxylate	分子量：371.5 密度：N/A 沸点：N/A 熔点：N/A	1420855-38-4	C₂₁H₂₉N₃O₃
3-(2-Chloro-5-fluorophenyl)pyridine-2,6-diamine	3-(2-Chloro-5-fluorophenyl)pyridine-2,6-diamine	分子量：237.66 密度：N/A 沸点：N/A 熔点：N/A	1079401-94-7	C₁₁H₉ClFN₃
2-(((2-Methoxybenzyl)amino)methyl)tetrahydrothiophene 1,1-dioxide	2-(((2-Methoxybenzyl)amino)methyl)tetrahydrothiophene 1,1-dioxide	分子量：269.36 密度：N/A 沸点：N/A 熔点：N/A	1423477-25-1	C₁₃H₁₉NO₃S
4-(4-Bromo-2-methoxyphenoxy)-1-methylpiperidine	4-(4-Bromo-2-methoxyphenoxy)-1-methylpiperidine	分子量：300.19 密度：N/A 沸点：N/A 熔点：N/A	1403483-71-5	C₁₃H₁₈BrNO₂
2-Bromo-4-(1-methylhydrazin-1-yl)benzonitrile	2-Bromo-4-(1-methylhydrazin-1-yl)benzonitrile	分子量：226.07 密度：N/A 沸点：N/A 熔点：N/A	1403483-69-1	C₈H₈BrN₃
2-Ethoxy-1-methanesulfonyl-4-nitrobenzene	2-Ethoxy-1-methanesulfonyl-4-nitrobenzene	分子量：245.25 密度：N/A 沸点：N/A 熔点：N/A	1423037-34-6	C₉H₁₁NO₅S
N-(6-amino-5-(2,5-dichlorophenyl)pyridin-2-yl)-2-chlorobenzamide	N-(6-amino-5-(2,5-dichlorophenyl)pyridin-2-yl)-2-chlorobenzamide	分子量：392.7 密度：N/A 沸点：N/A 熔点：N/A	1079401-04-9	C₁₈H₁₂Cl₃N₃O
2-((2-(Piperidin-3-yl)ethoxy)methyl)pyridine hydrochloride	2-((2-(Piperidin-3-yl)ethoxy)methyl)pyridine hydrochloride	分子量：256.77 密度：N/A 沸点：N/A 熔点：N/A	1420993-50-5	C₁₃H₂₁ClN₂O
3-(2,3-Dichloro-5-methoxyphenyl)pyridine-2,6-diamine	3-(2,3-Dichloro-5-methoxyphenyl)pyridine-2,6-diamine	分子量：284.14 密度：N/A 沸点：N/A 熔点：N/A	1079401-99-2	C₁₂H₁₁Cl₂N₃O
N-(((1S,4S,6S)-4-((1H-Benzo[d]imidazol-2-yl)methyl)-6-isopropyl-3-methylcyclohex-2-en-1-yl)methyl)-2-methoxybenzamide	N-(((1S,4S,6S)-4-((1H-Benzo[d]imidazol-2-yl)methyl)-6-isopropyl-3-methylcyclohex-2-en-1-yl)methyl)-2-methoxybenzamide	分子量：431.6 密度：N/A 沸点：N/A 熔点：N/A	1379777-48-6	C₂₇H₃₃N₃O₂
N-cyclopropyl-3-(2-methoxyethyl)-2,4-dioxo-4aH-quinazoline-7-carboxamide	N-cyclopropyl-3-(2-methoxyethyl)-2,4-dioxo-4aH-quinazoline-7-carboxamide	分子量：303.31 密度：N/A 沸点：N/A 熔点：N/A	892271-20-4	C₁₅H₁₇N₃O₄
tert-Butyl 3-(3-((4-chloropyrimidin-2-yl)oxy)propyl)piperidine-1-carboxylate	tert-Butyl 3-(3-((4-chloropyrimidin-2-yl)oxy)propyl)piperidine-1-carboxylate	分子量：355.9 密度：N/A 沸点：N/A 熔点：N/A	1420811-17-1	C₁₇H₂₆ClN₃O₃
5-((2-(Piperidin-3-yl)ethoxy)methyl)thiazole hydrochloride	5-((2-(Piperidin-3-yl)ethoxy)methyl)thiazole hydrochloride	分子量：262.80 密度：N/A 沸点：N/A 熔点：N/A	1420974-23-7	C₁₁H₁₉ClN₂OS
(3S,5S)-5-amino-2,2,6-trimethylheptan-3-ol	(3S,5S)-5-amino-2,2,6-trimethylheptan-3-ol	分子量：173.30 密度：N/A 沸点：N/A 熔点：N/A	1263094-47-8	C₁₀H₂₃NO
3-Amino-2,4,4-trimethylpentanoic acid	3-Amino-2,4,4-trimethylpentanoic acid	分子量：159.23 密度：N/A 沸点：N/A 熔点：N/A	1824186-31-3	C₈H₁₇NO₂
1-(5-Bromo-3-fluoropyridin-2-yl)propan-1-amine	1-(5-Bromo-3-fluoropyridin-2-yl)propan-1-amine	分子量：233.08 密度：N/A 沸点：N/A 熔点：N/A	1270426-95-3	C₈H₁₀BrFN₂
2-(2-(Piperidin-4-yl)ethoxy)pyrazine hydrochloride	2-(2-(Piperidin-4-yl)ethoxy)pyrazine hydrochloride	分子量：243.73 密度：N/A 沸点：N/A 熔点：N/A	1420851-15-5	C₁₁H₁₈ClN₃O
(5-bromofuran-2-yl)(7,8-dihydropyrido[4,3-d]pyrimidin-6(5H)-yl)methanone	(5-bromofuran-2-yl)(7,8-dihydropyrido[4,3-d]pyrimidin-6(5H)-yl)methanone	分子量：308.13 密度：N/A 沸点：N/A 熔点：N/A	1797184-15-6	C₁₂H₁₀BrN₃O₂
Methyl 3-[(2-methyl-1,3-thiazolidin-4-yl)formamido]propanoate hydrochloride	Methyl 3-[(2-methyl-1,3-thiazolidin-4-yl)formamido]propanoate hydrochloride	分子量：268.76 密度：N/A 沸点：N/A 熔点：N/A	105292-63-5	C₉H₁₇ClN₂O₃S
3-Chloro-6-(piperidin-4-ylsulfinyl)pyridazine hydrochloride	3-Chloro-6-(piperidin-4-ylsulfinyl)pyridazine hydrochloride	分子量：282.19 密度：N/A 沸点：N/A 熔点：N/A	1420871-28-8	C₉H₁₃Cl₂N₃OS
3-Chloro-6-((pyrrolidin-2-ylmethyl)sulfinyl)pyridazine hydrochloride	3-Chloro-6-((pyrrolidin-2-ylmethyl)sulfinyl)pyridazine hydrochloride	分子量：282.19 密度：N/A 沸点：N/A 熔点：N/A	1421003-63-5	C₉H₁₃Cl₂N₃OS
tert-Butyl 4-((3-hydroxypyridin-2-yl)oxy)piperidine-1-carboxylate	tert-Butyl 4-((3-hydroxypyridin-2-yl)oxy)piperidine-1-carboxylate	分子量：294.35 密度：N/A 沸点：N/A 熔点：N/A	1420843-22-6	C₁₅H₂₂N₂O₄
N-(6-Amino-5-iodopyridin-2-yl)-1-ethyl-1H-pyrazole-5-carboxamide	N-(6-Amino-5-iodopyridin-2-yl)-1-ethyl-1H-pyrazole-5-carboxamide	分子量：357.15 密度：N/A 沸点：N/A 熔点：N/A	1079402-07-5	C₁₁H₁₂IN₅O
3-(2,4-Dichlorophenyl)pyridine-2,6-diamine	3-(2,4-Dichlorophenyl)pyridine-2,6-diamine	分子量：254.11 密度：N/A 沸点：N/A 熔点：N/A	1079402-00-8	C₁₁H₉Cl₂N₃
3-(2-Fluoro-5-(trifluoromethoxy)phenyl)pyridine-2,6-diamine	3-(2-Fluoro-5-(trifluoromethoxy)phenyl)pyridine-2,6-diamine	分子量：287.21 密度：N/A 沸点：N/A 熔点：N/A	1079402-03-1	C₁₂H₉F₄N₃O
N-(3,4-dimethylphenyl)-2,4-dioxo-3-pentyl-4a,5,6,7,8,8a-hexahydro-1H-quinazoline-7-carboxamide	N-(3,4-dimethylphenyl)-2,4-dioxo-3-pentyl-4a,5,6,7,8,8a-hexahydro-1H-quinazoline-7-carboxamide	分子量：385.5 密度：N/A 沸点：N/A 熔点：N/A	892260-74-1	C₂₂H₃₁N₃O₃
1-(1H-indol-5-ylmethyl)-3-methylurea	1-(1H-indol-5-ylmethyl)-3-methylurea	分子量：203.24 密度：N/A 沸点：N/A 熔点：N/A	1822673-52-8	C₁₁H₁₃N₃O
tert-Butyl 4-((2-chloropyrimidin-4-yl)sulfinyl)piperidine-1-carboxylate	tert-Butyl 4-((2-chloropyrimidin-4-yl)sulfinyl)piperidine-1-carboxylate	分子量：345.8 密度：N/A 沸点：N/A 熔点：N/A	1420894-08-1	C₁₄H₂₀ClN₃O₃S
1-(5-Chloro-3-pyridyl)ethanamine	1-(5-Chloro-3-pyridyl)ethanamine	分子量：156.61 密度：N/A 沸点：N/A 熔点：N/A	1270473-80-7	C₇H₉ClN₂
tert-Butyl 4-((5-nitrobenzo[d]oxazol-2-yl)sulfinyl)piperidine-1-carboxylate	tert-Butyl 4-((5-nitrobenzo[d]oxazol-2-yl)sulfinyl)piperidine-1-carboxylate	分子量：395.4 密度：N/A 沸点：N/A 熔点：N/A	1420875-60-0	C₁₇H₂₁N₃O₆S
tert-Butyl 4-(2-((6-bromopyridin-2-yl)oxy)ethyl)piperidine-1-carboxylate	tert-Butyl 4-(2-((6-bromopyridin-2-yl)oxy)ethyl)piperidine-1-carboxylate	分子量：385.3 密度：N/A 沸点：N/A 熔点：N/A	1420969-13-6	C₁₇H₂₅BrN₂O₃
tert-Butyl 4-(2-((5-fluoropyrimidin-2-yl)oxy)ethyl)piperidine-1-carboxylate	tert-Butyl 4-(2-((5-fluoropyrimidin-2-yl)oxy)ethyl)piperidine-1-carboxylate	分子量：325.38 密度：N/A 沸点：N/A 熔点：N/A	1420811-65-9	C₁₆H₂₄FN₃O₃