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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 CAS号
3-chloro-5-fluoro-N-[(oxolan-2-yl)methyl]benzamide 2322064-80-0
4-(3-Chloro-5-fluorobenzoyl)piperazin-2-one 2329286-22-6
1-{4-[({2,3-Dimethylimidazo[1,2-b]pyridazin-6-yl}oxy)methyl]piperidin-1-yl}-2,2-dimethylpropan-1-one 2549047-63-2
4-[({2,3-Dimethylimidazo[1,2-b]pyridazin-6-yl}oxy)methyl]-1-(oxolane-3-carbonyl)piperidine 2549033-34-1
4-[(5-Methyl-1,2-oxazol-4-yl)methyl]-2-(pyrrolidine-1-carbonyl)morpholine 2640844-04-6
4-[({2,3-dimethylimidazo[1,2-b]pyridazin-6-yl}oxy)methyl]-N-(prop-2-en-1-yl)piperidine-1-carboxamide 2549033-99-8
N-tert-butyl-3-[({3-cyclopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}oxy)methyl]pyrrolidine-1-carboxamide 2549038-87-9
3-[({3-Cyclopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}oxy)methyl]-1-(3,3-difluorocyclobutanecarbonyl)pyrrolidine 2549021-74-9
4-[({2,3-dimethylimidazo[1,2-b]pyridazin-6-yl}oxy)methyl]-N-[(oxolan-2-yl)methyl]piperidine-1-carboxamide 2549048-91-9
4-[({2,3-Dimethylimidazo[1,2-b]pyridazin-6-yl}oxy)methyl]-1-(2-methylpropanesulfonyl)piperidine 2548979-13-9
tert-butyl 3-[(4-chloro-1H-pyrazol-1-yl)methyl]azetidine-1-carboxylate 2549050-20-4
1-(2-fluorophenyl)-N-[(5-methyl-1,3,4-oxadiazol-2-yl)methyl]methanesulfonamide 2326305-00-2
2-{4-[({2-Methylimidazo[1,2-b]pyridazin-6-yl}oxy)methyl]piperidine-1-carbonyl}pyridine 2548979-09-3
6,7-Dimethoxy-2-{3-methyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}-1,2,3,4-tetrahydroisoquinoline 2322169-24-2
4-[({2,3-dimethylimidazo[1,2-b]pyridazin-6-yl}oxy)methyl]-1-(1H-pyrazole-4-carbonyl)piperidine 2549042-63-7
3-Bromo-5-{4-[({2,3-dimethylimidazo[1,2-b]pyridazin-6-yl}oxy)methyl]piperidine-1-carbonyl}pyridine 2549019-87-4
Tert-butyl 4-[(2,5-difluorophenyl)methyl]-3-oxopiperazine-1-carboxylate 2549044-65-5
Tert-butyl 4-(5-ethyl-6-methylpyrimidin-4-yl)piperazine-1-carboxylate 2548982-29-0
2-(3,5-Dimethyl-1,2-oxazol-4-yl)-1-{5-[3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]-octahydropyrrolo[3,4-c]pyrrol-2-yl}ethan-1-one 2548989-05-3
N-(3-tert-butyl-1,2-oxazol-5-yl)-4-ethyl-2,3-dioxopiperazine-1-carboxamide 2324591-24-2
3-({4-[({2,3-Dimethylimidazo[1,2-b]pyridazin-6-yl}oxy)methyl]piperidin-1-yl}sulfonyl)pyridine 2548984-30-9
2-(4-cyclopropyl-6-oxo-1,6-dihydropyrimidin-1-yl)-N-(4-methyl-1,2,5-oxadiazol-3-yl)acetamide 2329416-08-0
4-{3-[({3-Cyclopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}oxy)methyl]pyrrolidine-1-carbonyl}-3-fluoropyridine 2549003-07-6
3-{3-[({3-Cyclopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}oxy)methyl]pyrrolidine-1-carbonyl}-5-fluoropyridine 2549027-59-8
N-(4,5-dimethyl-1,3-thiazol-2-yl)-2-(4-methyl-6-oxo-1,6-dihydropyrimidin-1-yl)acetamide 2327372-93-8
2-[(2-Fluorophenyl)methanesulfonyl]-5-{3-methyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}-octahydropyrrolo[3,4-c]pyrrole 2549004-92-2
4-{3-[({3-cyclopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}oxy)methyl]pyrrolidine-1-carbonyl}-1-methyl-1H-pyrazole 2549012-30-6
3-Phenyl-6-{[1-(pyridine-3-sulfonyl)pyrrolidin-3-yl]methoxy}pyridazine 2548994-31-4
3-[({3-Cyclopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}oxy)methyl]-1-(2-fluorobenzoyl)pyrrolidine 2549034-68-4
4-({3-[({3-Cyclopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}oxy)methyl]pyrrolidin-1-yl}sulfonyl)morpholine 2548996-68-3
4-{3-[({3-Cyclopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}oxy)methyl]pyrrolidine-1-carbonyl}benzonitrile 2548986-28-1
2-({3-[({3-cyclopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}oxy)methyl]pyrrolidin-1-yl}sulfonyl)-1-methyl-1H-imidazole 2549004-85-3
4-({3-[({3-cyclopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}oxy)methyl]pyrrolidin-1-yl}sulfonyl)-1H-imidazole 2549005-13-0
4-({3-[({3-Cyclopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}oxy)methyl]pyrrolidin-1-yl}sulfonyl)-3,5-dimethyl-1,2-oxazole 2549006-00-8
6-{4-[({2,3-Dimethylimidazo[1,2-b]pyridazin-6-yl}oxy)methyl]piperidine-1-carbonyl}quinoline 2549021-77-2
4-[({2,3-Dimethylimidazo[1,2-b]pyridazin-6-yl}oxy)methyl]-1-(5-fluoro-2-methoxybenzenesulfonyl)piperidine 2548975-56-8
3-[({3-Cyclopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}oxy)methyl]-1-(2-fluorobenzenesulfonyl)pyrrolidine 2549003-19-0
3-[({3-Cyclopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}oxy)methyl]-1-(4-methylbenzenesulfonyl)pyrrolidine 2549021-96-5
3-[({3-Cyclopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}oxy)methyl]-1-(4-fluorobenzenesulfonyl)pyrrolidine 2548997-08-4
1-(2-Chlorobenzenesulfonyl)-3-[({3-cyclopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}oxy)methyl]pyrrolidine 2549056-65-5
3-[({3-Cyclopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}oxy)methyl]-1-(4-fluoro-2-methylbenzenesulfonyl)pyrrolidine 2548998-83-8
1-(4-Chlorobenzenesulfonyl)-3-[({3-cyclopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl}oxy)methyl]pyrrolidine 2549005-32-3
2-(1-methyl-1H-indol-3-yl)-1-{4-[({2-methylimidazo[1,2-b]pyridazin-6-yl}oxy)methyl]piperidin-1-yl}ethan-1-one 2549022-70-8
5-(1-Benzyl-3-fluoropyrrolidin-3-yl)-3-phenyl-1,2,4-oxadiazole 2549043-18-5
1-(Azepan-1-yl)-2-{methyl[5-(3-phenyl-1,2,4-oxadiazol-5-yl)pyrimidin-4-yl]amino}ethan-1-one 2549021-05-6
2-[5-(3,4-dimethoxybenzoyl)-octahydropyrrolo[3,4-c]pyrrol-2-yl]-1-methyl-1H-1,3-benzodiazole 2549026-70-0
tert-butyl 3-(4,5-dibromo-2H-1,2,3-triazol-2-yl)azetidine-1-carboxylate 2548993-50-4
Tert-butyl 4-{[(6-tert-butylpyridazin-3-yl)oxy]methyl}piperidine-1-carboxylate 2549054-33-1
N-(4-methanesulfonylphenyl)-5-[3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl]pyrimidin-4-amine 2549035-02-9
2-cyclopropyl-N-[(4-hydroxy-4,5,6,7-tetrahydro-1-benzothiophen-4-yl)methyl]acetamide 2548999-79-5

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