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-[(3-chlorophenyl)methyl]-6-{[3-(2-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl}-3H,6H,7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	3-[(3-chlorophenyl)methyl]-6-{[3-(2-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl}-3H,6H,7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	分子量：433.8 密度：N/A 沸点：N/A 熔点：N/A	1040638-92-3	C₂₁H₁₆ClN₇O₂
3-(3-chlorobenzyl)-6-{[3-(4-methoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl}-3,6-dihydro-7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	3-(3-chlorobenzyl)-6-{[3-(4-methoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl}-3,6-dihydro-7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	分子量：449.8 密度：N/A 沸点：N/A 熔点：N/A	1040639-00-6	C₂₁H₁₆ClN₇O₃
6-{[3-(2H-1,3-benzodioxol-5-yl)-1,2,4-oxadiazol-5-yl]methyl}-3-[(3-chlorophenyl)methyl]-3H,6H,7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	6-{[3-(2H-1,3-benzodioxol-5-yl)-1,2,4-oxadiazol-5-yl]methyl}-3-[(3-chlorophenyl)methyl]-3H,6H,7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	分子量：463.8 密度：N/A 沸点：N/A 熔点：N/A	1040639-08-4	C₂₁H₁₄ClN₇O₄
3-(3-chlorobenzyl)-6-{[3-(3,4-dimethoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl}-3,6-dihydro-7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	3-(3-chlorobenzyl)-6-{[3-(3,4-dimethoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl}-3,6-dihydro-7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	分子量：479.9 密度：N/A 沸点：N/A 熔点：N/A	1040639-16-4	C₂₂H₁₈ClN₇O₄
3-(3-chlorobenzyl)-6-({3-[3-(trifluoromethyl)phenyl]-1,2,4-oxadiazol-5-yl}methyl)-3,6-dihydro-7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	3-(3-chlorobenzyl)-6-({3-[3-(trifluoromethyl)phenyl]-1,2,4-oxadiazol-5-yl}methyl)-3,6-dihydro-7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	分子量：487.8 密度：N/A 沸点：N/A 熔点：N/A	1040639-24-4	C₂₁H₁₃ClF₃N₇O₂
3-[(3-chlorophenyl)methyl]-6-({3-[4-(trifluoromethyl)phenyl]-1,2,4-oxadiazol-5-yl}methyl)-3H,6H,7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	3-[(3-chlorophenyl)methyl]-6-({3-[4-(trifluoromethyl)phenyl]-1,2,4-oxadiazol-5-yl}methyl)-3H,6H,7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	分子量：487.8 密度：N/A 沸点：N/A 熔点：N/A	1040639-32-4	C₂₁H₁₃ClF₃N₇O₂
3-[(3-chlorophenyl)methyl]-6-{[3-(4-fluorophenyl)-1,2,4-oxadiazol-5-yl]methyl}-3H,6H,7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	3-[(3-chlorophenyl)methyl]-6-{[3-(4-fluorophenyl)-1,2,4-oxadiazol-5-yl]methyl}-3H,6H,7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	分子量：437.8 密度：N/A 沸点：N/A 熔点：N/A	1040639-39-1	C₂₀H₁₃ClFN₇O₂
3-[(3-chlorophenyl)methyl]-6-{[3-(2,4-dimethoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl}-3H,6H,7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	3-[(3-chlorophenyl)methyl]-6-{[3-(2,4-dimethoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl}-3H,6H,7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	分子量：479.9 密度：N/A 沸点：N/A 熔点：N/A	1040639-46-0	C₂₂H₁₈ClN₇O₄
3-[(3-chlorophenyl)methyl]-6-{[3-(3,5-dimethoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl}-3H,6H,7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	3-[(3-chlorophenyl)methyl]-6-{[3-(3,5-dimethoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl}-3H,6H,7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	分子量：479.9 密度：N/A 沸点：N/A 熔点：N/A	1040639-53-9	C₂₂H₁₈ClN₇O₄
3-[(3-fluorophenyl)methyl]-6-{[3-(3-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl}-3H,6H,7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	3-[(3-fluorophenyl)methyl]-6-{[3-(3-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl}-3H,6H,7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	分子量：417.4 密度：N/A 沸点：N/A 熔点：N/A	1040639-60-8	C₂₁H₁₆FN₇O₂
3-[(3-fluorophenyl)methyl]-6-{[3-(4-methoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl}-3H,6H,7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	3-[(3-fluorophenyl)methyl]-6-{[3-(4-methoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl}-3H,6H,7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	分子量：433.4 密度：N/A 沸点：N/A 熔点：N/A	1040639-67-5	C₂₁H₁₆FN₇O₃
6-{[3-(4-chlorophenyl)-1,2,4-oxadiazol-5-yl]methyl}-3-[(3-fluorophenyl)methyl]-3H,6H,7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	6-{[3-(4-chlorophenyl)-1,2,4-oxadiazol-5-yl]methyl}-3-[(3-fluorophenyl)methyl]-3H,6H,7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	分子量：437.8 密度：N/A 沸点：N/A 熔点：N/A	1040639-75-5	C₂₀H₁₃ClFN₇O₂
6-{[3-(2-bromophenyl)-1,2,4-oxadiazol-5-yl]methyl}-3-(3-fluorobenzyl)-3,6-dihydro-7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	6-{[3-(2-bromophenyl)-1,2,4-oxadiazol-5-yl]methyl}-3-(3-fluorobenzyl)-3,6-dihydro-7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	分子量：482.3 密度：N/A 沸点：N/A 熔点：N/A	1040639-83-5	C₂₀H₁₃BrFN₇O₂
6-{[3-(3,4-dimethoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl}-3-(3-fluorobenzyl)-3,6-dihydro-7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	6-{[3-(3,4-dimethoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl}-3-(3-fluorobenzyl)-3,6-dihydro-7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	分子量：463.4 密度：N/A 沸点：N/A 熔点：N/A	1040639-91-5	C₂₂H₁₈FN₇O₄
6-{[3-(2,4-dimethoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl}-3-[(3-fluorophenyl)methyl]-3H,6H,7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	6-{[3-(2,4-dimethoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl}-3-[(3-fluorophenyl)methyl]-3H,6H,7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	分子量：463.4 密度：N/A 沸点：N/A 熔点：N/A	1040639-99-3	C₂₂H₁₈FN₇O₄
3-(4-methylbenzyl)-6-((3-(o-tolyl)-1,2,4-oxadiazol-5-yl)methyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7(6H)-one	3-(4-methylbenzyl)-6-((3-(o-tolyl)-1,2,4-oxadiazol-5-yl)methyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7(6H)-one	分子量：413.4 密度：N/A 沸点：N/A 熔点：N/A	1040640-06-9	C₂₂H₁₉N₇O₂
3-(3-methylbenzyl)-6-{[3-(4-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl}-3,6-dihydro-7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	3-(3-methylbenzyl)-6-{[3-(4-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl}-3,6-dihydro-7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	分子量：413.4 密度：N/A 沸点：N/A 熔点：N/A	1040640-13-8	C₂₂H₁₉N₇O₂
3-[(3-methylphenyl)methyl]-6-({3-[3-(trifluoromethyl)phenyl]-1,2,4-oxadiazol-5-yl}methyl)-3H,6H,7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	3-[(3-methylphenyl)methyl]-6-({3-[3-(trifluoromethyl)phenyl]-1,2,4-oxadiazol-5-yl}methyl)-3H,6H,7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	分子量：467.4 密度：N/A 沸点：N/A 熔点：N/A	1040640-19-4	C₂₂H₁₆F₃N₇O₂
Atazanavir-d4	Atazanavir-d4	分子量：708.9 密度：N/A 沸点：N/A 熔点：N/A	1132747-16-0	C₃₈H₅₂N₆O₇
6-{[3-(4-fluorophenyl)-1,2,4-oxadiazol-5-yl]methyl}-3-[(3-methylphenyl)methyl]-3H,6H,7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	6-{[3-(4-fluorophenyl)-1,2,4-oxadiazol-5-yl]methyl}-3-[(3-methylphenyl)methyl]-3H,6H,7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	分子量：417.4 密度：N/A 沸点：N/A 熔点：N/A	1040640-26-3	C₂₁H₁₆FN₇O₂
6-{[3-(3,5-dimethoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl}-3-[(3-methylphenyl)methyl]-3H,6H,7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	6-{[3-(3,5-dimethoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl}-3-[(3-methylphenyl)methyl]-3H,6H,7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	分子量：459.5 密度：N/A 沸点：N/A 熔点：N/A	1040640-33-2	C₂₃H₂₁N₇O₄
6-{[3-(3-bromophenyl)-1,2,4-oxadiazol-5-yl]methyl}-3-(3-methylbenzyl)-3,6-dihydro-7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	6-{[3-(3-bromophenyl)-1,2,4-oxadiazol-5-yl]methyl}-3-(3-methylbenzyl)-3,6-dihydro-7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one	分子量：478.3 密度：N/A 沸点：N/A 熔点：N/A	1040640-41-2	C₂₁H₁₆BrN₇O₂
N-[(4-ethylphenyl)methyl]-3-[(4-phenylpiperazin-1-yl)sulfonyl]thiophene-2-carboxamide	N-[(4-ethylphenyl)methyl]-3-[(4-phenylpiperazin-1-yl)sulfonyl]thiophene-2-carboxamide	分子量：469.6 密度：N/A 沸点：N/A 熔点：N/A	1040640-64-9	C₂₄H₂₇N₃O₃S₂
3-[(4-phenylpiperazin-1-yl)sulfonyl]-N-{[4-(propan-2-yl)phenyl]methyl}thiophene-2-carboxamide	3-[(4-phenylpiperazin-1-yl)sulfonyl]-N-{[4-(propan-2-yl)phenyl]methyl}thiophene-2-carboxamide	分子量：483.7 密度：N/A 沸点：N/A 熔点：N/A	1040640-71-8	C₂₅H₂₉N₃O₃S₂
N-[(2-methoxyphenyl)methyl]-3-[(4-phenylpiperazin-1-yl)sulfonyl]thiophene-2-carboxamide	N-[(2-methoxyphenyl)methyl]-3-[(4-phenylpiperazin-1-yl)sulfonyl]thiophene-2-carboxamide	分子量：471.6 密度：N/A 沸点：N/A 熔点：N/A	1040640-78-5	C₂₃H₂₅N₃O₄S₂
N-[(3-methoxyphenyl)methyl]-3-[(4-phenylpiperazin-1-yl)sulfonyl]thiophene-2-carboxamide	N-[(3-methoxyphenyl)methyl]-3-[(4-phenylpiperazin-1-yl)sulfonyl]thiophene-2-carboxamide	分子量：471.6 密度：N/A 沸点：N/A 熔点：N/A	1040640-85-4	C₂₃H₂₅N₃O₄S₂
2-Formyl-3-hydroxy-6-methylbenzoic acid	2-Formyl-3-hydroxy-6-methylbenzoic acid	分子量：180.16 密度：N/A 沸点：N/A 熔点：N/A	2155856-48-5	C₉H₈O₄
N-(2-ethoxybenzyl)-3-((4-phenylpiperazin-1-yl)sulfonyl)thiophene-2-carboxamide	N-(2-ethoxybenzyl)-3-((4-phenylpiperazin-1-yl)sulfonyl)thiophene-2-carboxamide	分子量：485.6 密度：N/A 沸点：N/A 熔点：N/A	1040641-00-6	C₂₄H₂₇N₃O₄S₂
3-[(4-phenylpiperazin-1-yl)sulfonyl]-N-[(4-propoxyphenyl)methyl]thiophene-2-carboxamide	3-[(4-phenylpiperazin-1-yl)sulfonyl]-N-[(4-propoxyphenyl)methyl]thiophene-2-carboxamide	分子量：499.6 密度：N/A 沸点：N/A 熔点：N/A	1040641-06-2	C₂₅H₂₉N₃O₄S₂
N-(1,3-benzodioxol-5-ylmethyl)-3-[(4-phenylpiperazin-1-yl)sulfonyl]thiophene-2-carboxamide	N-(1,3-benzodioxol-5-ylmethyl)-3-[(4-phenylpiperazin-1-yl)sulfonyl]thiophene-2-carboxamide	分子量：485.6 密度：N/A 沸点：N/A 熔点：N/A	1040641-14-2	C₂₃H₂₃N₃O₅S₂
N-{[4-(methylsulfanyl)phenyl]methyl}-3-[(4-phenylpiperazin-1-yl)sulfonyl]thiophene-2-carboxamide	N-{[4-(methylsulfanyl)phenyl]methyl}-3-[(4-phenylpiperazin-1-yl)sulfonyl]thiophene-2-carboxamide	分子量：487.7 密度：N/A 沸点：N/A 熔点：N/A	1040641-22-2	C₂₃H₂₅N₃O₃S₃
N-(4-methoxyphenyl)-3-[(4-phenylpiperazin-1-yl)sulfonyl]thiophene-2-carboxamide	N-(4-methoxyphenyl)-3-[(4-phenylpiperazin-1-yl)sulfonyl]thiophene-2-carboxamide	分子量：457.6 密度：N/A 沸点：N/A 熔点：N/A	1040641-53-9	C₂₂H₂₃N₃O₄S₂
3-{[4-(2,5-dimethylphenyl)piperazin-1-yl]sulfonyl}-N-pentylthiophene-2-carboxamide	3-{[4-(2,5-dimethylphenyl)piperazin-1-yl]sulfonyl}-N-pentylthiophene-2-carboxamide	分子量：449.6 密度：N/A 沸点：N/A 熔点：N/A	1040641-60-8	C₂₂H₃₁N₃O₃S₂
N-benzyl-2-{2,4-dioxo-3-[(3-phenyl-1,2,4-oxadiazol-5-yl)methyl]-1,2,3,4-tetrahydroquinazolin-1-yl}acetamide	N-benzyl-2-{2,4-dioxo-3-[(3-phenyl-1,2,4-oxadiazol-5-yl)methyl]-1,2,3,4-tetrahydroquinazolin-1-yl}acetamide	分子量：467.5 密度：N/A 沸点：N/A 熔点：N/A	894259-99-5	C₂₆H₂₁N₅O₄
1,10-Dimethyl-1,10-phenanthroline-1,10-diium	1,10-Dimethyl-1,10-phenanthroline-1,10-diium	分子量：210.27 密度：N/A 沸点：N/A 熔点：N/A	84156-50-3	C₁₄H₁₄N₂+₂
N-ethyl-2-(4-iodophenoxy)acetamide	N-ethyl-2-(4-iodophenoxy)acetamide	分子量：305.11 密度：N/A 沸点：N/A 熔点：N/A	1251234-96-4	C₁₀H₁₂INO₂
5-Thiazolecarboxylic acid, 2-[[(3,4-dimethoxyphenyl)sulfonyl]amino]-4-methyl-	5-Thiazolecarboxylic acid, 2-[[(3,4-dimethoxyphenyl)sulfonyl]amino]-4-methyl-	分子量：358.4 密度：N/A 沸点：N/A 熔点：N/A	951921-94-1	C₁₃H₁₄N₂O₆S₂
6-Nitro-1,2-benzoxazol-3-ol	6-Nitro-1,2-benzoxazol-3-ol	分子量：180.12 密度：N/A 沸点：N/A 熔点：N/A	36238-81-0	C₇H₄N₂O₄
{4-[4-(4-Methylphenyl)-1,3-thiazol-2-yl]phenyl}methanamine	{4-[4-(4-Methylphenyl)-1,3-thiazol-2-yl]phenyl}methanamine	分子量：280.4 密度：N/A 沸点：N/A 熔点：N/A	951912-74-6	C₁₇H₁₆N₂S
5-bromo-N-(1-(1-(3,4-dimethylphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yl)-3-methyl-1H-pyrazol-5-yl)furan-2-carboxamide	5-bromo-N-(1-(1-(3,4-dimethylphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yl)-3-methyl-1H-pyrazol-5-yl)furan-2-carboxamide	分子量：492.3 密度：N/A 沸点：N/A 熔点：N/A	1005956-10-4	C₂₂H₁₈BrN₇O₂
Benzenemethanamine, 4-[4-(4-chlorophenyl)-2-thiazolyl]-	Benzenemethanamine, 4-[4-(4-chlorophenyl)-2-thiazolyl]-	分子量：300.8 密度：N/A 沸点：N/A 熔点：N/A	951912-98-4	C₁₆H₁₃ClN₂S
(3S)-3-(dibutylamino)azepan-2-one	(3S)-3-(dibutylamino)azepan-2-one	分子量：240.38 密度：N/A 沸点：N/A 熔点：N/A	2900982-85-4	C₁₄H₂₈N₂O
1-[3-(4-Phenyl-1,3-thiazol-2-yl)phenyl]methanamine	1-[3-(4-Phenyl-1,3-thiazol-2-yl)phenyl]methanamine	分子量：266.4 密度：N/A 沸点：N/A 熔点：N/A	1216276-56-0	C₁₆H₁₄N₂S
3-benzyl-8-fluoro-3H-pyrimido[5,4-b]indol-4(5H)-one	3-benzyl-8-fluoro-3H-pyrimido[5,4-b]indol-4(5H)-one	分子量：293.29 密度：N/A 沸点：N/A 熔点：N/A	1031669-47-2	C₁₇H₁₂FN₃O
Propan-2-yl 3-(dimethylamino)benzoate	Propan-2-yl 3-(dimethylamino)benzoate	分子量：207.27 密度：N/A 沸点：N/A 熔点：N/A	16518-66-4	C₁₂H₁₇NO₂
4,5-Diamino-2-methylbenzoic acid	4,5-Diamino-2-methylbenzoic acid	分子量：166.18 密度：N/A 沸点：N/A 熔点：N/A	86139-87-9	C₈H₁₀N₂O₂
2-[2-(Propan-2-yl)phenyl]butanedioic acid	2-[2-(Propan-2-yl)phenyl]butanedioic acid	分子量：236.26 密度：N/A 沸点：N/A 熔点：N/A	2229446-99-3	C₁₃H₁₆O₄
N1-ethylcyclohexane-1,4-diamine	N1-ethylcyclohexane-1,4-diamine	分子量：142.24 密度：N/A 沸点：N/A 熔点：N/A	51635-92-8	C₈H₁₈N₂
Sodium 4-hydroxybenzenesulfinate	Sodium 4-hydroxybenzenesulfinate	分子量：180.16 密度：N/A 沸点：N/A 熔点：N/A	120005-27-8	C₆H₅NaO₃S
Potassium (3-chloropropyl)trifluoroboranuide	Potassium (3-chloropropyl)trifluoroboranuide	分子量：184.44 密度：N/A 沸点：N/A 熔点：N/A	569370-68-9	C₃H₆BClF₃K