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 |
(S)-2-(1-苯基乙氨基)乙酸乙酯 |
ETHYL (S)-[(1-PHENYLETHYL)AMINO]ACETATE |
分子量:207.26900 密度:N/A 沸点:N/A 熔点:N/A |
22263-68-9 |
C12H17NO2 |
3-Bromo-4-methoxy-N-methylbenzenesulfonamide |
3-Bromo-4-methoxy-N-methylbenzenesulfonamide |
分子量:280.139 密度:1.6±0.1 g/cm3 沸点:373.2±52.0 °C at 760 mmHg 熔点:N/A |
358665-54-0 |
C8H10BrNO3S |
3-氨基噻吩草酸盐 |
3-Aminothiophene Oxalate |
分子量:189.18900 密度:N/A 沸点:N/A 熔点:N/A |
478149-05-2 |
C6H7NO4S |
2-(4-苄基哌嗪-1-基)-5-氟苯甲酸甲酯 |
Methyl 2-(4-Benzylpiperazino)-5-fluorobenzoate |
分子量:328.38100 密度:N/A 沸点:N/A 熔点:N/A |
1256633-30-3 |
C19H21FN2O2 |
5-Bromo-6-(4-methyl-1-piperidinyl)-3-pyridinamine |
5-Bromo-6-(4-methyl-1-piperidinyl)-3-pyridinamine |
分子量:270.169 密度:1.4±0.1 g/cm3 沸点:418.3±45.0 °C at 760 mmHg 熔点:N/A |
1216072-08-0 |
C11H16BrN3 |
2,6-二氯-3,5-二甲氧基苯胺 |
2,6-Dichloro-3,5-dimethoxyaniline |
分子量:222.069 密度:1.4±0.1 g/cm3 沸点:319.7±37.0 °C at 760 mmHg 熔点:N/A |
872509-56-3 |
C8H9Cl2NO2 |
Benzenemethanamine, 3-bromo-N,N,5-trimethyl- |
Benzenemethanamine, 3-bromo-N,N,5-trimethyl- |
分子量:228.129 密度:1.3±0.1 g/cm3 沸点:248.5±25.0 °C at 760 mmHg 熔点:N/A |
1112210-53-3 |
C10H14BrN |
4-Bromo-2-chloro-1-(2-ethoxyethoxy)benzene |
4-Bromo-2-chloro-1-(2-ethoxyethoxy)benzene |
分子量:279.558 密度:1.4±0.0 g/cm3 沸点:321.0±0.0 °C at 760 mmHg 熔点:N/A |
279261-90-4 |
C10H12BrClO2 |
(4-((二异丙基氨基)甲基)苯基)硼酸 |
{4-[(Diisopropylamino)methyl]phenyl}boronic acid |
分子量:235.130 密度:1.0±0.1 g/cm3 沸点:346.6±44.0 °C at 760 mmHg 熔点:N/A |
1025900-35-9 |
C13H22BNO2 |
N-[(1R,2R)-2-氨基-1,2-二苯基乙基]-N'-[3,5-双(三氟甲基)苯基]硫脲 |
N-[(1R,2R)-2-amino-1,2-diphenylethyl]-N'-[3,5-bis(trifluoromethyl)phenyl]-Thiourea |
分子量:483.473 密度:1.4±0.1 g/cm3 沸点:487.6±55.0 °C at 760 mmHg 熔点:91-93 °C |
1088705-53-6 |
C23H19F6N3S |
2-[2-(6-溴己氧基)乙氧基甲基]-1,3-二氯苯 |
Benzene, 2-[[2-[(6-bromohexyl)oxy]ethoxy]Methyl]-1,3-dichloro |
分子量:384.136 密度:1.3±0.1 g/cm3 沸点:420.8±45.0 °C at 760 mmHg 熔点:N/A |
503070-57-3 |
C15H21BrCl2O2 |
(S)-TERT-BUTYL 3-((DIMETHYLAMINO)METHYL)PYRROLIDINE-1-CARBOXYLATE HYDROCHLORIDE |
(S)-TERT-BUTYL 3-((DIMETHYLAMINO)METHYL)PYRROLIDINE-1-CARBOXYLATE HYDROCHLORIDE |
分子量:264.79200 密度:N/A 沸点:N/A 熔点:N/A |
1246643-15-1 |
C12H25ClN2O2 |
3-溴-4-甲砜基苯甲酸甲酯 |
METHYL 3-BROMO-4-(METHYLSULFONYL)BENZOATE |
分子量:293.13400 密度:N/A 沸点:N/A 熔点:N/A |
182003-84-5 |
C9H9BrO4S |
(3-((3-(三氟甲基)苯基)氨基甲酰)苯基)硼酸 |
(3-((3-(trifluoromethyl)phenyl)carbamoyl)phenyl)boronic acid |
分子量:309.048 密度:1.4±0.1 g/cm3 沸点:N/A 熔点:N/A |
882678-73-1 |
C14H11BF3NO3 |
4-(3-butenylsulfonyl)phenylboronic acid |
4-(3-butenylsulfonyl)phenylboronic acid |
分子量:240.08400 密度:N/A 沸点:N/A 熔点:N/A |
1002754-88-2 |
C10H13BO4S |
4-(3-(4-溴-2-氯苯氧基)丙基)吗啉 |
4-[3-(4-Bromo-2-chlorophenoxy)propyl]morpholine |
分子量:334.637 密度:1.4±0.1 g/cm3 沸点:418.5±45.0 °C at 760 mmHg 熔点:N/A |
433946-01-1 |
C13H17BrClNO2 |
2-[(4-Bromobenzyl)oxy]ethanol |
2-[(4-Bromobenzyl)oxy]ethanol |
分子量:231.086 密度:1.5±0.1 g/cm3 沸点:317.1±22.0 °C at 760 mmHg 熔点:N/A |
1149358-73-5 |
C9H11BrO2 |
N,N-Dibenzyl-2-bromoaniline |
N,N-Dibenzyl-2-bromoaniline |
分子量:352.268 密度:1.3±0.1 g/cm3 沸点:469.9±45.0 °C at 760 mmHg 熔点:N/A |
1075193-04-2 |
C20H18BrN |
(R)-3,3′-双(2,4,6-三异丙基苯基)-1,1′-联萘-2,2′-双磷酸氢酯 |
TRIP |
分子量:752.959 密度:1.2±0.1 g/cm3 沸点:814.2±75.0 °C at 760 mmHg 熔点:N/A |
791616-63-2 |
C50H57O4P |
(4-甲氧基-3-(吗啉代磺酰)苯基)硼酸 |
(4-Methoxy-3-(Morpholinosulfonyl)phenyl)boronic acid |
分子量:301.124 密度:1.4±0.1 g/cm3 沸点:553.6±60.0 °C at 760 mmHg 熔点:N/A |
1100095-14-4 |
C11H16BNO6S |
1-Bromo-4-[(2-bromoethoxy)methyl]benzene |
1-Bromo-4-[(2-bromoethoxy)methyl]benzene |
分子量:293.983 密度:1.7±0.1 g/cm3 沸点:318.7±22.0 °C at 760 mmHg 熔点:N/A |
103061-55-8 |
C9H10Br2O |
Benzene, 1-bromo-3-fluoro-5-[(2-methoxyethoxy)methyl]- |
Benzene, 1-bromo-3-fluoro-5-[(2-methoxyethoxy)methyl]- |
分子量:263.103 密度:1.4±0.1 g/cm3 沸点:274.0±30.0 °C at 760 mmHg 熔点:N/A |
1504282-99-8 |
C10H12BrFO2 |
N-[1-(4-Bromophenyl)ethyl]cyclopropanamine |
N-[1-(4-Bromophenyl)ethyl]cyclopropanamine |
分子量:240.140 密度:1.4±0.1 g/cm3 沸点:302.6±17.0 °C at 760 mmHg 熔点:N/A |
953753-40-7 |
C11H14BrN |
(3S,4R)-4-(4-氯苯基)吡咯烷-3-羧酸 |
(3S,4R)-4-(4-chlorophenyl)pyrrolidine-3-carboxylic acid |
分子量:262.132 密度:N/A 沸点:N/A 熔点:N/A |
1047651-82-0 |
C11H13Cl2NO2 |
3-Bromo-N-cyclopropyl-4-methoxybenzenesulfonamide |
3-Bromo-N-cyclopropyl-4-methoxybenzenesulfonamide |
分子量:306.176 密度:1.7±0.1 g/cm3 沸点:413.3±55.0 °C at 760 mmHg 熔点:N/A |
425656-23-1 |
C10H12BrNO3S |
1-Piperazineethanol, 4-[(4-bromo-2-fluorophenyl)methyl]- |
1-Piperazineethanol, 4-[(4-bromo-2-fluorophenyl)methyl]- |
分子量:317.197 密度:1.4±0.1 g/cm3 沸点:399.8±37.0 °C at 760 mmHg 熔点:N/A |
1209199-46-1 |
C13H18BrFN2O |
1-(5-Bromo-2-fluorobenzyl)-4-methylpiperidine |
1-(5-Bromo-2-fluorobenzyl)-4-methylpiperidine |
分子量:286.183 密度:1.3±0.1 g/cm3 沸点:309.4±27.0 °C at 760 mmHg 熔点:N/A |
1492223-82-1 |
C13H17BrFN |
(4-甲基哌啶-1-基)(3-(4,4,5,5-四甲基-1,3,2-二硼戊环-2-基)苯基)甲酮 |
(4-Methylpiperidin-1-yl)(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)methanone |
分子量:329.241 密度:1.1±0.1 g/cm3 沸点:470.9±28.0 °C at 760 mmHg 熔点:N/A |
1509932-02-8 |
C19H28BNO3 |
(2S,4R)-1-BOC-2-氨基甲酰基-4-羟基吡咯烷 |
(2S,4R)-1-Boc-2-carbamoyl-4-hydroxypyrrolidine |
分子量:230.26100 密度:N/A 沸点:N/A 熔点:N/A |
109384-24-9 |
C10H18N2O4 |
5-Bromo-N,N,2-trimethylbenzenesulfonamide |
5-Bromo-N,N,2-trimethylbenzenesulfonamide |
分子量:278.166 密度:1.5±0.1 g/cm3 沸点:359.7±52.0 °C at 760 mmHg 熔点:N/A |
473477-02-0 |
C9H12BrNO2S |
4-[1-(4-Bromophenyl)ethyl]morpholine |
4-[1-(4-Bromophenyl)ethyl]morpholine |
分子量:270.165 密度:1.3±0.1 g/cm3 沸点:323.9±27.0 °C at 760 mmHg 熔点:N/A |
933785-12-7 |
C12H16BrNO |
Benzenemethanamine, 4-bromo-N-[(4-bromophenyl)methyl]-N-methyl- |
Benzenemethanamine, 4-bromo-N-[(4-bromophenyl)methyl]-N-methyl- |
分子量:369.094 密度:1.5±0.0 g/cm3 沸点:389.4±0.0 °C at 760 mmHg 熔点:N/A |
97437-80-4 |
C15H15Br2N |
N,N,6-Trimethyl-2-pyridinamine |
N,N,6-Trimethyl-2-pyridinamine |
分子量:136.194 密度:1.0±0.1 g/cm3 沸点:199.0±0.0 °C at 760 mmHg 熔点:N/A |
199273-62-6 |
C8H12N2 |
Pyridine, 3-bromo-2-(4-methyl-1-piperidinyl)-5-nitro- |
Pyridine, 3-bromo-2-(4-methyl-1-piperidinyl)-5-nitro- |
分子量:300.152 密度:1.5±0.1 g/cm3 沸点:402.4±45.0 °C at 760 mmHg 熔点:N/A |
1289009-34-2 |
C11H14BrN3O2 |
2-(1-吡咯烷基)-4-溴苯甲酸 |
4-BROMO-2-PYRROLIDINOBENZOIC ACID |
分子量:270.12200 密度:N/A 沸点:N/A 熔点:N/A |
1099609-12-7 |
C11H12BrNO2 |
1-[3-(4-Bromophenoxy)propyl]-4-ethylpiperazine |
1-[3-(4-Bromophenoxy)propyl]-4-ethylpiperazine |
分子量:327.260 密度:1.2±0.1 g/cm3 沸点:406.6±35.0 °C at 760 mmHg 熔点:N/A |
1001784-85-5 |
C15H23BrN2O |
4-(5-溴-2-氟苯基)吗啉 |
4-(5-Bromo-2-fluorophenyl)morpholine |
分子量:260.103 密度:1.5±0.1 g/cm3 沸点:331.8±42.0 °C at 760 mmHg 熔点:N/A |
1065169-38-1 |
C10H11BrFNO |
2-Bromo-4-(1-pyrrolidinyl)benzaldehyde |
2-Bromo-4-(1-pyrrolidinyl)benzaldehyde |
分子量:254.123 密度:1.5±0.1 g/cm3 沸点:385.4±32.0 °C at 760 mmHg 熔点:N/A |
946705-58-4 |
C11H12BrNO |
(+/-)-反式-4-苯基吡咯烷-3-羧酸盐酸盐 |
trans-4-Phenyl-pyrrolidine-3-carboxylic acid hydrochloride |
分子量:227.68700 密度:N/A 沸点:N/A 熔点:N/A |
1049755-65-8 |
C11H14ClNO2 |
N-[2-(3-Bromophenoxy)ethyl]cyclopropanamine |
N-[2-(3-Bromophenoxy)ethyl]cyclopropanamine |
分子量:256.139 密度:1.4±0.1 g/cm3 沸点:338.7±22.0 °C at 760 mmHg 熔点:N/A |
19160-73-7 |
C11H14BrNO |
(3R,4S)-REL-1-BENZYL-4-(4-CHLOROPHENYL)PYRROLIDINE-3-CARBOXYLIC ACID HYDROCHLORIDE |
(3R,4S)-REL-1-BENZYL-4-(4-CHLOROPHENYL)PYRROLIDINE-3-CARBOXYLIC ACID HYDROCHLORIDE |
分子量:352.25500 密度:N/A 沸点:N/A 熔点:N/A |
1013117-42-4 |
C18H19Cl2NO2 |
Pyridine, 3,5-dibromo-2-(2,5-dimethyl-1H-pyrrol-1-yl)- |
Pyridine, 3,5-dibromo-2-(2,5-dimethyl-1H-pyrrol-1-yl)- |
分子量:330.018 密度:1.7±0.1 g/cm3 沸点:365.6±42.0 °C at 760 mmHg 熔点:N/A |
1210477-73-8 |
C11H10Br2N2 |
(3R,4S)-4-(3-Methoxyphenyl)pyrrolidine-3-carboxylic acid |
(3R,4S)-4-(3-Methoxyphenyl)pyrrolidine-3-carboxylic acid |
分子量:221.25200 密度:N/A 沸点:N/A 熔点:N/A |
1049978-87-1 |
C12H15NO3 |
2-硝基-4-氟-5-(1-咪唑基)苯甲酸 |
4-Fluoro-5-(1H-imidazol-1-yl)-2-nitrobenzoic acid |
分子量:251.17100 密度:1.62±0.1 g/cm3 沸点:N/A 熔点:N/A |
1141669-65-9 |
C10H6FN3O4 |
TRANS-4-(M-TOLYL)PYRROLIDINE-3-CARBOXYLIC ACID HYDROCHLORIDE |
TRANS-4-(M-TOLYL)PYRROLIDINE-3-CARBOXYLIC ACID HYDROCHLORIDE |
分子量:205.25300 密度:N/A 沸点:N/A 熔点:N/A |
1049976-06-8 |
C12H15NO2 |
2-甲基-4-甲砜基苯甲酸 |
2-Methyl-4-(methylsulfonyl)benzoic Acid |
分子量:214.23800 密度:N/A 沸点:N/A 熔点:N/A |
118939-09-6 |
C9H10O4S |
(6-溴吡啶-2-基)三氟硼酸钾 |
potassium (6-bromopyridin-2-yl)trifluoroborate |
分子量:263.892 密度:N/A 沸点:N/A 熔点:N/A |
1189097-42-4 |
C5H3BBrF3KN |
反式-4-(2-(三氟甲基)苯基)吡咯烷-3-甲酸盐酸盐 |
trans-4-(2-(Trifluoromethyl)phenyl)pyrrolidine-3-carboxylic acid hydrochloride |
分子量:259.22400 密度:N/A 沸点:N/A 熔点:N/A |
1049978-59-7 |
C12H12F3NO2 |
1-Bromo-2-ethoxy-4-(trifluoromethoxy)benzene |
1-Bromo-2-ethoxy-4-(trifluoromethoxy)benzene |
分子量:285.058 密度:1.5±0.1 g/cm3 沸点:237.7±35.0 °C at 760 mmHg 熔点:N/A |
1162261-92-8 |
C9H8BrF3O2 |
952680-40-9 |
952680-40-9 |
分子量:417.861 密度:1.4±0.1 g/cm3 沸点:589.4±50.0 °C at 760 mmHg 熔点:N/A |
952680-40-9 |
C21H21ClFN3O3 |