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
(2S,4R)-1-acetyl-N-(1-(benzo[d]thiazol-2-yl)-5-guanidino-1-oxopentan-2-yl)-4-hydroxypyrrolidine-2-carboxamide	(2S,4R)-1-acetyl-N-(1-(benzo[d]thiazol-2-yl)-5-guanidino-1-oxopentan-2-yl)-4-hydroxypyrrolidine-2-carboxamide	分子量：446.5 密度：N/A 沸点：N/A 熔点：N/A	287183-00-0	C₂₀H₂₆N₆O₄S
N-{4-oxo-2-[4-(propan-2-yl)phenyl]-4H-chromen-6-yl}furan-2-carboxamide	N-{4-oxo-2-[4-(propan-2-yl)phenyl]-4H-chromen-6-yl}furan-2-carboxamide	分子量：373.4 密度：N/A 沸点：N/A 熔点：N/A	923251-40-5	C₂₃H₁₉NO₄
1-(2-(2-fluorophenyl)-4-oxo-4H-chromen-6-yl)-3-phenylurea	1-(2-(2-fluorophenyl)-4-oxo-4H-chromen-6-yl)-3-phenylurea	分子量：374.4 密度：N/A 沸点：N/A 熔点：N/A	923685-44-3	C₂₂H₁₅FN₂O₃
3,5-bis(3-bromophenyl)-4-chloro-1H-pyrazole	3,5-bis(3-bromophenyl)-4-chloro-1H-pyrazole	分子量：412.50 密度：N/A 沸点：N/A 熔点：N/A	1159988-52-9	C₁₅H₉Br₂ClN₂
N-[2-(4-ethoxyphenyl)-4-oxo-4H-chromen-6-yl]furan-2-carboxamide	N-[2-(4-ethoxyphenyl)-4-oxo-4H-chromen-6-yl]furan-2-carboxamide	分子量：375.4 密度：N/A 沸点：N/A 熔点：N/A	923228-09-5	C₂₂H₁₇NO₅
4-chloro-N-(4-oxo-2-phenyl-4H-chromen-6-yl)benzamide	4-chloro-N-(4-oxo-2-phenyl-4H-chromen-6-yl)benzamide	分子量：375.8 密度：N/A 沸点：N/A 熔点：N/A	923685-92-1	C₂₂H₁₄ClNO₃
4-fluoro-N-(2-(2-fluorophenyl)-4-oxo-4H-chromen-6-yl)benzamide	4-fluoro-N-(2-(2-fluorophenyl)-4-oxo-4H-chromen-6-yl)benzamide	分子量：377.3 密度：N/A 沸点：N/A 熔点：N/A	923157-08-8	C₂₂H₁₃F₂NO₃
3-(Chloromethyl)-5-[(4,7-dimethoxy-1,3-benzodioxol-5-yl)methyl]-4,5-dihydroisoxazole	3-(Chloromethyl)-5-[(4,7-dimethoxy-1,3-benzodioxol-5-yl)methyl]-4,5-dihydroisoxazole	分子量：313.73 密度：N/A 沸点：N/A 熔点：N/A	924862-04-4	C₁₄H₁₆ClNO₅
N-[2-(4-methoxyphenyl)-4-oxo-4H-chromen-6-yl]thiophene-2-carboxamide	N-[2-(4-methoxyphenyl)-4-oxo-4H-chromen-6-yl]thiophene-2-carboxamide	分子量：377.4 密度：N/A 沸点：N/A 熔点：N/A	921881-81-4	C₂₁H₁₅NO₄S
N-[2-(2-methoxyphenyl)-4-oxo-4H-chromen-6-yl]thiophene-2-carboxamide	N-[2-(2-methoxyphenyl)-4-oxo-4H-chromen-6-yl]thiophene-2-carboxamide	分子量：377.4 密度：N/A 沸点：N/A 熔点：N/A	923158-02-5	C₂₁H₁₅NO₄S
N-[2-(4-methoxyphenyl)-4-oxo-4H-chromen-6-yl]cyclohexanecarboxamide	N-[2-(4-methoxyphenyl)-4-oxo-4H-chromen-6-yl]cyclohexanecarboxamide	分子量：377.4 密度：N/A 沸点：N/A 熔点：N/A	923246-02-0	C₂₃H₂₃NO₄
N-{4-oxo-2-[4-(propan-2-yl)phenyl]-4H-chromen-6-yl}benzamide	N-{4-oxo-2-[4-(propan-2-yl)phenyl]-4H-chromen-6-yl}benzamide	分子量：383.4 密度：N/A 沸点：N/A 熔点：N/A	923687-91-6	C₂₅H₂₁NO₃
N-[2-(4-methoxyphenyl)-4-oxo-4H-chromen-6-yl]-2-methylbenzamide	N-[2-(4-methoxyphenyl)-4-oxo-4H-chromen-6-yl]-2-methylbenzamide	分子量：385.4 密度：N/A 沸点：N/A 熔点：N/A	923157-44-2	C₂₄H₁₉NO₄
N-[2-(2-methoxyphenyl)-4-oxo-4H-chromen-6-yl]-2-methylbenzamide	N-[2-(2-methoxyphenyl)-4-oxo-4H-chromen-6-yl]-2-methylbenzamide	分子量：385.4 密度：N/A 沸点：N/A 熔点：N/A	923157-80-6	C₂₄H₁₉NO₄
Benzamide,4-[4-(1,3-benzodioxol-5-yl)-5-(6-methyl-2-pyridinyl)-1h-imidazol-2-yl]-	Benzamide,4-[4-(1,3-benzodioxol-5-yl)-5-(6-methyl-2-pyridinyl)-1h-imidazol-2-yl]-	分子量：398.4 密度：N/A 沸点：N/A 熔点：N/A	364050-19-1	C₂₃H₁₈N₄O₃
4-Chloro-2-formylbenzeneacetonitrile	4-Chloro-2-formylbenzeneacetonitrile	分子量：179.60 密度：N/A 沸点：N/A 熔点：N/A	135737-15-4	C₉H₆ClNO
3-methoxy-N-[2-(3-methylphenyl)-4-oxo-4H-chromen-6-yl]benzamide	3-methoxy-N-[2-(3-methylphenyl)-4-oxo-4H-chromen-6-yl]benzamide	分子量：385.4 密度：N/A 沸点：N/A 熔点：N/A	923211-74-9	C₂₄H₁₉NO₄
2-(4-Methoxyphenyl)-5-methylimidazo[1,2-a]pyridine	2-(4-Methoxyphenyl)-5-methylimidazo[1,2-a]pyridine	分子量：238.28 密度：N/A 沸点：N/A 熔点：N/A	1055025-37-0	C₁₅H₁₄N₂O
N-[2-(2-fluorophenyl)-4-oxo-4H-chromen-6-yl]-2-methoxybenzamide	N-[2-(2-fluorophenyl)-4-oxo-4H-chromen-6-yl]-2-methoxybenzamide	分子量：389.4 密度：N/A 沸点：N/A 熔点：N/A	923112-79-2	C₂₃H₁₆FNO₄
N-(2-(4-fluorophenyl)-4-oxo-4H-chromen-6-yl)-2-methoxybenzamide	N-(2-(4-fluorophenyl)-4-oxo-4H-chromen-6-yl)-2-methoxybenzamide	分子量：389.4 密度：N/A 沸点：N/A 熔点：N/A	923132-82-5	C₂₃H₁₆FNO₄
4-chloro-N-[2-(2-methylphenyl)-4-oxo-4H-chromen-6-yl]benzamide	4-chloro-N-[2-(2-methylphenyl)-4-oxo-4H-chromen-6-yl]benzamide	分子量：389.8 密度：N/A 沸点：N/A 熔点：N/A	923211-76-1	C₂₃H₁₆ClNO₃
4-chloro-N-[2-(3-methylphenyl)-4-oxo-4H-chromen-6-yl]benzamide	4-chloro-N-[2-(3-methylphenyl)-4-oxo-4H-chromen-6-yl]benzamide	分子量：389.8 密度：N/A 沸点：N/A 熔点：N/A	923211-62-5	C₂₃H₁₆ClNO₃
2-chloro-N-[2-(2-methylphenyl)-4-oxo-4H-chromen-6-yl]benzamide	2-chloro-N-[2-(2-methylphenyl)-4-oxo-4H-chromen-6-yl]benzamide	分子量：389.8 密度：N/A 沸点：N/A 熔点：N/A	923132-72-3	C₂₃H₁₆ClNO₃
2-chloro-N-[2-(3-methylphenyl)-4-oxo-4H-chromen-6-yl]benzamide	2-chloro-N-[2-(3-methylphenyl)-4-oxo-4H-chromen-6-yl]benzamide	分子量：389.8 密度：N/A 沸点：N/A 熔点：N/A	923157-72-6	C₂₃H₁₆ClNO₃
methyl 4-(5,7,7,10,10-pentamethyl-7,8,9,10-tetrahydro-5H-benzo[e]naphtho[2,3-b][1,4]diazepin-13-yl)benzoate	methyl 4-(5,7,7,10,10-pentamethyl-7,8,9,10-tetrahydro-5H-benzo[e]naphtho[2,3-b][1,4]diazepin-13-yl)benzoate	分子量：452.6 密度：N/A 沸点：N/A 熔点：N/A	155877-82-0	C₃₀H₃₂N₂O₂
2-chloro-N-[2-(2-fluorophenyl)-4-oxo-4H-chromen-6-yl]benzamide	2-chloro-N-[2-(2-fluorophenyl)-4-oxo-4H-chromen-6-yl]benzamide	分子量：393.8 密度：N/A 沸点：N/A 熔点：N/A	923112-85-0	C₂₂H₁₃ClFNO₃
2-methyl-N-{4-oxo-2-[4-(propan-2-yl)phenyl]-4H-chromen-6-yl}benzamide	2-methyl-N-{4-oxo-2-[4-(propan-2-yl)phenyl]-4H-chromen-6-yl}benzamide	分子量：397.5 密度：N/A 沸点：N/A 熔点：N/A	923233-33-4	C₂₆H₂₃NO₃
Benzenesulfonamide,3-[[5-(4-fluorophenyl)-2-oxazolyl]amino]-4-methoxy-n-(3-pyridinylmethyl)-	Benzenesulfonamide,3-[[5-(4-fluorophenyl)-2-oxazolyl]amino]-4-methoxy-n-(3-pyridinylmethyl)-	分子量：454.5 密度：N/A 沸点：N/A 熔点：N/A	681003-10-1	C₂₂H₁₉FN₄O₄S
2-(1H-Indol-3-yl)ethyl 6-O-I(2)-D-xylopyranosyl-I(2)-D-glucopyranoside	2-(1H-Indol-3-yl)ethyl 6-O-I(2)-D-xylopyranosyl-I(2)-D-glucopyranoside	分子量：455.5 密度：N/A 沸点：N/A 熔点：N/A	149817-65-2	C₂₁H₂₉NO₁₀
N-[2-(4-tert-butylphenyl)-4-oxo-4H-chromen-6-yl]thiophene-2-carboxamide	N-[2-(4-tert-butylphenyl)-4-oxo-4H-chromen-6-yl]thiophene-2-carboxamide	分子量：403.5 密度：N/A 沸点：N/A 熔点：N/A	923257-75-4	C₂₄H₂₁NO₃S
4-chloro-N-[2-(2-methoxyphenyl)-4-oxo-4H-chromen-6-yl]benzamide	4-chloro-N-[2-(2-methoxyphenyl)-4-oxo-4H-chromen-6-yl]benzamide	分子量：405.8 密度：N/A 沸点：N/A 熔点：N/A	923185-98-2	C₂₃H₁₆ClNO₄
1-(4-chlorophenyl)-3-(2-(2-fluorophenyl)-4-oxo-4H-chromen-6-yl)urea	1-(4-chlorophenyl)-3-(2-(2-fluorophenyl)-4-oxo-4H-chromen-6-yl)urea	分子量：408.8 密度：N/A 沸点：N/A 熔点：N/A	923185-46-0	C₂₂H₁₄ClFN₂O₃
N-[2-(4-tert-butylphenyl)-4-oxo-4H-chromen-6-yl]-4-methylbenzamide	N-[2-(4-tert-butylphenyl)-4-oxo-4H-chromen-6-yl]-4-methylbenzamide	分子量：411.5 密度：N/A 沸点：N/A 熔点：N/A	923234-02-0	C₂₇H₂₅NO₃
N-[2-(4-tert-butylphenyl)-4-oxo-4H-chromen-6-yl]-2-methylbenzamide	N-[2-(4-tert-butylphenyl)-4-oxo-4H-chromen-6-yl]-2-methylbenzamide	分子量：411.5 密度：N/A 沸点：N/A 熔点：N/A	923113-54-6	C₂₇H₂₅NO₃
4-tert-butyl-N-[2-(3-methylphenyl)-4-oxo-4H-chromen-6-yl]benzamide	4-tert-butyl-N-[2-(3-methylphenyl)-4-oxo-4H-chromen-6-yl]benzamide	分子量：411.5 密度：N/A 沸点：N/A 熔点：N/A	923186-14-5	C₂₇H₂₅NO₃
(2-(Dimethoxymethyl)-5-methoxyphenyl)methanol	(2-(Dimethoxymethyl)-5-methoxyphenyl)methanol	分子量：212.24 密度：N/A 沸点：N/A 熔点：N/A	149967-40-8	C₁₁H₁₆O₄
N-[2-(4-ethoxyphenyl)-4-oxo-4H-chromen-6-yl]-4-methoxybenzamide	N-[2-(4-ethoxyphenyl)-4-oxo-4H-chromen-6-yl]-4-methoxybenzamide	分子量：415.4 密度：N/A 沸点：N/A 熔点：N/A	923257-63-0	C₂₅H₂₁NO₅
Methyl 3-[(propan-2-yl)sulfamoyl]benzoate	Methyl 3-[(propan-2-yl)sulfamoyl]benzoate	分子量：257.31 密度：N/A 沸点：N/A 熔点：N/A	778592-04-4	C₁₁H₁₅NO₄S
N-[2-(4-ethoxyphenyl)-4-oxo-4H-chromen-6-yl]-2-methoxybenzamide	N-[2-(4-ethoxyphenyl)-4-oxo-4H-chromen-6-yl]-2-methoxybenzamide	分子量：415.4 密度：N/A 沸点：N/A 熔点：N/A	923113-87-5	C₂₅H₂₁NO₅
N-[2-(4-tert-butylphenyl)-4-oxo-4H-chromen-6-yl]-4-fluorobenzamide	N-[2-(4-tert-butylphenyl)-4-oxo-4H-chromen-6-yl]-4-fluorobenzamide	分子量：415.5 密度：N/A 沸点：N/A 熔点：N/A	923257-73-2	C₂₆H₂₂FNO₃
3-(4-Phenoxyphenyl)prop-2-enal	3-(4-Phenoxyphenyl)prop-2-enal	分子量：224.25 密度：N/A 沸点：N/A 熔点：N/A	98901-72-5	C₁₅H₁₂O₂
N-[2-(2-fluorophenyl)-4-oxo-4H-chromen-6-yl]-3,5-dimethoxybenzamide	N-[2-(2-fluorophenyl)-4-oxo-4H-chromen-6-yl]-3,5-dimethoxybenzamide	分子量：419.4 密度：N/A 沸点：N/A 熔点：N/A	923215-95-6	C₂₄H₁₈FNO₅
2-chloro-N-[2-(4-ethoxyphenyl)-4-oxo-4H-chromen-6-yl]benzamide	2-chloro-N-[2-(4-ethoxyphenyl)-4-oxo-4H-chromen-6-yl]benzamide	分子量：419.9 密度：N/A 沸点：N/A 熔点：N/A	923113-91-1	C₂₄H₁₈ClNO₄
4-bromo-N-(4-oxo-2-phenyl-4H-chromen-6-yl)benzamide	4-bromo-N-(4-oxo-2-phenyl-4H-chromen-6-yl)benzamide	分子量：420.3 密度：N/A 沸点：N/A 熔点：N/A	923233-39-0	C₂₂H₁₄BrNO₃
methyl 1-methyl-4-sulfamoyl-1H-pyrazole-5-carboxylate	methyl 1-methyl-4-sulfamoyl-1H-pyrazole-5-carboxylate	分子量：219.22 密度：N/A 沸点：N/A 熔点：N/A	101457-10-7	C₆H₉N₃O₄S
1-(4-chlorophenyl)-3-[2-(2-methoxyphenyl)-4-oxo-4H-chromen-6-yl]urea	1-(4-chlorophenyl)-3-[2-(2-methoxyphenyl)-4-oxo-4H-chromen-6-yl]urea	分子量：420.8 密度：N/A 沸点：N/A 熔点：N/A	923113-56-8	C₂₃H₁₇ClN₂O₄
N-[2-(4-tert-butylphenyl)-4-oxo-4H-chromen-6-yl]-4-methoxybenzamide	N-[2-(4-tert-butylphenyl)-4-oxo-4H-chromen-6-yl]-4-methoxybenzamide	分子量：427.5 密度：N/A 沸点：N/A 熔点：N/A	923186-99-6	C₂₇H₂₅NO₄
4-tert-butyl-N-[2-(4-methoxyphenyl)-4-oxo-4H-chromen-6-yl]benzamide	4-tert-butyl-N-[2-(4-methoxyphenyl)-4-oxo-4H-chromen-6-yl]benzamide	分子量：427.5 密度：N/A 沸点：N/A 熔点：N/A	923186-97-4	C₂₇H₂₅NO₄
3,4,5-trimethoxy-N-(4-oxo-2-phenyl-4H-chromen-6-yl)benzamide	3,4,5-trimethoxy-N-(4-oxo-2-phenyl-4H-chromen-6-yl)benzamide	分子量：431.4 密度：N/A 沸点：N/A 熔点：N/A	923216-63-1	C₂₅H₂₁NO₆
N-[2-(4-tert-butylphenyl)-4-oxo-4H-chromen-6-yl]-2-chlorobenzamide	N-[2-(4-tert-butylphenyl)-4-oxo-4H-chromen-6-yl]-2-chlorobenzamide	分子量：431.9 密度：N/A 沸点：N/A 熔点：N/A	923164-67-4	C₂₆H₂₂ClNO₃