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 |
| 6-Amino-5-(difluoromethyl)-2-(trifluoromethoxy)nicotinic acid
|
6-Amino-5-(difluoromethyl)-2-(trifluoromethoxy)nicotinic acid
|
分子量：272.13
密度：N/A
沸点：N/A
熔点：N/A
|
1803447-13-3
|
C8H5F5N2O3
|
| 3-Chloro-4-(difluoromethyl)-5-(trifluoromethoxy)pyridin-2-amine
|
3-Chloro-4-(difluoromethyl)-5-(trifluoromethoxy)pyridin-2-amine
|
分子量：262.56
密度：N/A
沸点：N/A
熔点：N/A
|
1803633-66-0
|
C7H4ClF5N2O
|
| 6-Chloro-4-(difluoromethyl)-5-nitropicolinic acid
|
6-Chloro-4-(difluoromethyl)-5-nitropicolinic acid
|
分子量：252.56
密度：N/A
沸点：N/A
熔点：N/A
|
1806872-38-7
|
C7H3ClF2N2O4
|
| 2-Chloro-4-(difluoromethyl)-5-(trifluoromethyl)nicotinic acid
|
2-Chloro-4-(difluoromethyl)-5-(trifluoromethyl)nicotinic acid
|
分子量：275.56
密度：N/A
沸点：N/A
熔点：N/A
|
1806072-26-3
|
C8H3ClF5NO2
|
| 6-Amino-4-cyano-5-(difluoromethyl)pyridine-3-sulfonamide
|
6-Amino-4-cyano-5-(difluoromethyl)pyridine-3-sulfonamide
|
分子量：248.21
密度：N/A
沸点：N/A
熔点：N/A
|
1806832-33-6
|
C7H6F2N4O2S
|
| 5-(Difluoromethyl)-4,6-difluoropicolinamide
|
5-(Difluoromethyl)-4,6-difluoropicolinamide
|
分子量：208.11
密度：N/A
沸点：N/A
熔点：N/A
|
1806029-35-5
|
C7H4F4N2O
|
| 4-Chloro-6-(difluoromethyl)-3-(trifluoromethyl)pyridin-2-amine
|
4-Chloro-6-(difluoromethyl)-3-(trifluoromethyl)pyridin-2-amine
|
分子量：246.56
密度：N/A
沸点：N/A
熔点：N/A
|
1805327-98-3
|
C7H4ClF5N2
|
| Methyl 2,3-dimethoxy-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate
|
Methyl 2,3-dimethoxy-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate
|
分子量：322.2
密度：N/A
沸点：N/A
熔点：N/A
|
1629604-13-2
|
C16H23BO6
|
| (S)-Benzyl 3-(aminomethyl)-5-methylhexanoate hydrochloride
|
(S)-Benzyl 3-(aminomethyl)-5-methylhexanoate hydrochloride
|
分子量：285.81
密度：N/A
沸点：N/A
熔点：N/A
|
649748-11-8
|
C15H24ClNO2
|
| Methyl isonicotinimidate HCl
|
Methyl isonicotinimidate HCl
|
分子量：172.61
密度：N/A
沸点：N/A
熔点：N/A
|
159417-05-7
|
C7H9ClN2O
|
| 1-(4-Chlorophenyl)-N-methyl-3-(pyrrolidin-1-yl)propan-1-amine dihydrochloride
|
1-(4-Chlorophenyl)-N-methyl-3-(pyrrolidin-1-yl)propan-1-amine dihydrochloride
|
分子量：325.7
密度：N/A
沸点：N/A
熔点：N/A
|
1956324-90-5
|
C14H23Cl3N2
|
| (3-Methoxyisoquinolin-6-yl)boronic acid
|
(3-Methoxyisoquinolin-6-yl)boronic acid
|
分子量：203.00
密度：N/A
沸点：N/A
熔点：N/A
|
1690326-09-0
|
C10H10BNO3
|
| 2-(2-Chloro-4-(trifluoromethoxy)-6-(trifluoromethyl)pyridin-3-yl)acetic acid
|
2-(2-Chloro-4-(trifluoromethoxy)-6-(trifluoromethyl)pyridin-3-yl)acetic acid
|
分子量：323.57
密度：N/A
沸点：N/A
熔点：N/A
|
1803650-03-4
|
C9H4ClF6NO3
|
| 2-Bromo-6-(difluoromethyl)-3-methoxy-5-(trifluoromethoxy)pyridine
|
2-Bromo-6-(difluoromethyl)-3-methoxy-5-(trifluoromethoxy)pyridine
|
分子量：322.03
密度：N/A
沸点：N/A
熔点：N/A
|
1806143-07-6
|
C8H5BrF5NO2
|
| 3-(2-(Difluoromethyl)-4,6-difluorophenyl)acrylic acid
|
3-(2-(Difluoromethyl)-4,6-difluorophenyl)acrylic acid
|
分子量：234.15
密度：N/A
沸点：N/A
熔点：N/A
|
1807435-32-0
|
C10H6F4O2
|
| 6-Bromo-2-(difluoromethyl)-5-methylnicotinaldehyde
|
6-Bromo-2-(difluoromethyl)-5-methylnicotinaldehyde
|
分子量：250.04
密度：N/A
沸点：N/A
熔点：N/A
|
1806862-65-6
|
C8H6BrF2NO
|
| (5-Bromo-2-fluoropyridin-4-yl)boronic acid
|
(5-Bromo-2-fluoropyridin-4-yl)boronic acid
|
分子量：219.81
密度：N/A
沸点：N/A
熔点：N/A
|
2304634-96-4
|
C5H4BBrFNO2
|
| (4-(Trifluoromethyl)oxazol-5-yl)methanamine oxalate
|
(4-(Trifluoromethyl)oxazol-5-yl)methanamine oxalate
|
分子量：256.14
密度：N/A
沸点：N/A
熔点：N/A
|
1956367-48-8
|
C7H7F3N2O5
|
| 2-Chloro-3-(chloromethyl)-5-(difluoromethyl)-4-methoxypyridine
|
2-Chloro-3-(chloromethyl)-5-(difluoromethyl)-4-methoxypyridine
|
分子量：242.05
密度：N/A
沸点：N/A
熔点：N/A
|
1804664-14-9
|
C8H7Cl2F2NO
|
| 2-Bromo-5-chloro-4-(difluoromethyl)pyridine-3-sulfonamide
|
2-Bromo-5-chloro-4-(difluoromethyl)pyridine-3-sulfonamide
|
分子量：321.53
密度：N/A
沸点：N/A
熔点：N/A
|
1805006-74-9
|
C6H4BrClF2N2O2S
|
| 3-(Difluoromethyl)-6-(hydroxymethyl)-4-methylpicolinonitrile
|
3-(Difluoromethyl)-6-(hydroxymethyl)-4-methylpicolinonitrile
|
分子量：198.17
密度：N/A
沸点：N/A
熔点：N/A
|
1805429-53-1
|
C9H8F2N2O
|
| 2,3-Dichloro-5-fluoroanisole
|
2,3-Dichloro-5-fluoroanisole
|
分子量：195.01
密度：N/A
沸点：N/A
熔点：N/A
|
1806329-27-0
|
C7H5Cl2FO
|
| 6-Chloro-4-(difluoromethyl)-5-nitronicotinamide
|
6-Chloro-4-(difluoromethyl)-5-nitronicotinamide
|
分子量：251.57
密度：N/A
沸点：N/A
熔点：N/A
|
1806940-80-6
|
C7H4ClF2N3O3
|
| 5-(Aminomethyl)-6-(difluoromethyl)-3-(trifluoromethyl)pyridin-2-amine
|
5-(Aminomethyl)-6-(difluoromethyl)-3-(trifluoromethyl)pyridin-2-amine
|
分子量：241.16
密度：N/A
沸点：N/A
熔点：N/A
|
1806005-06-0
|
C8H8F5N3
|
| 6-Chloro-4-(chloromethyl)-5-(difluoromethyl)nicotinaldehyde
|
6-Chloro-4-(chloromethyl)-5-(difluoromethyl)nicotinaldehyde
|
分子量：240.03
密度：N/A
沸点：N/A
熔点：N/A
|
1805421-18-4
|
C8H5Cl2F2NO
|
| benzyl N-{[1-(hydroxymethyl)cyclopentyl]methyl}carbamate
|
benzyl N-{[1-(hydroxymethyl)cyclopentyl]methyl}carbamate
|
分子量：263.33
密度：N/A
沸点：N/A
熔点：N/A
|
1329229-88-0
|
C15H21NO3
|
| 2-(Difluoromethoxy)-3-(trifluoromethyl)isonicotinaldehyde
|
2-(Difluoromethoxy)-3-(trifluoromethyl)isonicotinaldehyde
|
分子量：241.11
密度：N/A
沸点：N/A
熔点：N/A
|
1804413-64-6
|
C8H4F5NO2
|
| 1,3,4-Oxadiazole-2-carboxylic acid, 5-(tetrahydro-5-methyl-2-furanyl)-
|
1,3,4-Oxadiazole-2-carboxylic acid, 5-(tetrahydro-5-methyl-2-furanyl)-
|
分子量：198.18
密度：N/A
沸点：N/A
熔点：N/A
|
1567078-49-2
|
C8H10N2O4
|
| 5-(5-Fluoro-2-methylphenyl)-1,3,4-oxadiazole-2-carboxylic acid
|
5-(5-Fluoro-2-methylphenyl)-1,3,4-oxadiazole-2-carboxylic acid
|
分子量：222.17
密度：N/A
沸点：N/A
熔点：N/A
|
1565404-33-2
|
C10H7FN2O3
|
| 2-(Aminomethyl)-3-chloro-5-(difluoromethyl)-6-(trifluoromethoxy)pyridine
|
2-(Aminomethyl)-3-chloro-5-(difluoromethyl)-6-(trifluoromethoxy)pyridine
|
分子量：276.59
密度：N/A
沸点：N/A
熔点：N/A
|
1803615-84-0
|
C8H6ClF5N2O
|
| 2-(3-Chloropropyl)-4-fluorobenzodifluoride
|
2-(3-Chloropropyl)-4-fluorobenzodifluoride
|
分子量：222.63
密度：N/A
沸点：N/A
熔点：N/A
|
1806379-70-3
|
C10H10ClF3
|
| 6-Methoxy-2-(o-tolyl)imidazo[1,2-a]pyridine
|
6-Methoxy-2-(o-tolyl)imidazo[1,2-a]pyridine
|
分子量：238.28
密度：N/A
沸点：N/A
熔点：N/A
|
1891227-28-3
|
C15H14N2O
|
| 2-(2-Fluorophenyl)-6-methoxyimidazo[1,2-a]pyridine
|
2-(2-Fluorophenyl)-6-methoxyimidazo[1,2-a]pyridine
|
分子量：242.25
密度：N/A
沸点：N/A
熔点：N/A
|
1893844-18-2
|
C14H11FN2O
|
| 2-(Aminomethyl)-4-(difluoromethyl)-6-iodo-3-methoxypyridine
|
2-(Aminomethyl)-4-(difluoromethyl)-6-iodo-3-methoxypyridine
|
分子量：314.07
密度：N/A
沸点：N/A
熔点：N/A
|
1805088-15-6
|
C8H9F2IN2O
|
| 1-(Pyridin-2-yl)piperidine-4-sulfonamide
|
1-(Pyridin-2-yl)piperidine-4-sulfonamide
|
分子量：241.31
密度：N/A
沸点：N/A
熔点：N/A
|
1247155-61-8
|
C10H15N3O2S
|
| 1-(Pyridin-4-yl)piperidine-4-sulfonamide
|
1-(Pyridin-4-yl)piperidine-4-sulfonamide
|
分子量：241.31
密度：N/A
沸点：N/A
熔点：N/A
|
1247750-16-8
|
C10H15N3O2S
|
| 5-Methyl-2-(2-trifluoromethylphenyl)-thiazole-4-carboxylic acid
|
5-Methyl-2-(2-trifluoromethylphenyl)-thiazole-4-carboxylic acid
|
分子量：287.26
密度：N/A
沸点：N/A
熔点：N/A
|
1549437-07-1
|
C12H8F3NO2S
|
| Ethyl 2-(5-Chloropyridin-2-yl)thiazole-4-carboxylate
|
Ethyl 2-(5-Chloropyridin-2-yl)thiazole-4-carboxylate
|
分子量：268.72
密度：N/A
沸点：N/A
熔点：N/A
|
1550313-94-4
|
C11H9ClN2O2S
|
| Ethyl 2-(3,4-Difluorophenyl)thiazole-4-carboxylate
|
Ethyl 2-(3,4-Difluorophenyl)thiazole-4-carboxylate
|
分子量：269.27
密度：N/A
沸点：N/A
熔点：N/A
|
1550042-75-5
|
C12H9F2NO2S
|
| Ethyl 2-(1-Methylcyclopropyl)thiazole-4-carboxylate
|
Ethyl 2-(1-Methylcyclopropyl)thiazole-4-carboxylate
|
分子量：211.28
密度：N/A
沸点：N/A
熔点：N/A
|
1545838-06-9
|
C10H13NO2S
|
| Ethyl 2-[(Methylthio)methyl]thiazole-4-carboxylate
|
Ethyl 2-[(Methylthio)methyl]thiazole-4-carboxylate
|
分子量：217.3
密度：N/A
沸点：N/A
熔点：N/A
|
1550323-69-7
|
C8H11NO2S2
|
| Ethyl 2-(5-Fluoropyridin-2-yl)thiazole-4-carboxylate
|
Ethyl 2-(5-Fluoropyridin-2-yl)thiazole-4-carboxylate
|
分子量：252.27
密度：N/A
沸点：N/A
熔点：N/A
|
1548684-28-1
|
C11H9FN2O2S
|
| Ethyl 2-[2-Fluoro-3-(trifluoromethyl)phenyl]thiazole-4-carboxylate
|
Ethyl 2-[2-Fluoro-3-(trifluoromethyl)phenyl]thiazole-4-carboxylate
|
分子量：319.28
密度：N/A
沸点：N/A
熔点：N/A
|
1552063-07-6
|
C13H9F4NO2S
|
| 1-Chloro-2,4-dimethoxy-6-iodobenzene
|
1-Chloro-2,4-dimethoxy-6-iodobenzene
|
分子量：298.50
密度：N/A
沸点：N/A
熔点：N/A
|
1805224-20-7
|
C8H8ClIO2
|
| Ethyl 2-(3-Fluoropyridin-4-yl)thiazole-4-carboxylate
|
Ethyl 2-(3-Fluoropyridin-4-yl)thiazole-4-carboxylate
|
分子量：252.27
密度：N/A
沸点：N/A
熔点：N/A
|
1553370-25-4
|
C11H9FN2O2S
|
| Ethyl 2-(ethoxymethyl)-1,3-thiazole-4-carboxylate
|
Ethyl 2-(ethoxymethyl)-1,3-thiazole-4-carboxylate
|
分子量：215.27
密度：N/A
沸点：N/A
熔点：N/A
|
1546144-18-6
|
C9H13NO3S
|
| Methyl 2-(4-Methoxybenzyl)thiazole-4-carboxylate
|
Methyl 2-(4-Methoxybenzyl)thiazole-4-carboxylate
|
分子量：263.31
密度：N/A
沸点：N/A
熔点：N/A
|
1545838-13-8
|
C13H13NO3S
|
| Methyl 2-(5-Chloropyridin-2-yl)thiazole-4-carboxylate
|
Methyl 2-(5-Chloropyridin-2-yl)thiazole-4-carboxylate
|
分子量：254.69
密度：N/A
沸点：N/A
熔点：N/A
|
1545838-16-1
|
C10H7ClN2O2S
|
| Methyl 2-(2-methoxypropan-2-yl)thiazole-4-carboxylate
|
Methyl 2-(2-methoxypropan-2-yl)thiazole-4-carboxylate
|
分子量：215.27
密度：N/A
沸点：N/A
熔点：N/A
|
1549437-36-6
|
C9H13NO3S
|
| Methyl 2-(3,4-Difluorophenyl)thiazole-4-carboxylate
|
Methyl 2-(3,4-Difluorophenyl)thiazole-4-carboxylate
|
分子量：255.24
密度：N/A
沸点：N/A
熔点：N/A
|
1545658-35-2
|
C11H7F2NO2S
|