| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 425386-58-9 | (S)-1-氨基-3-甲基-4,5-二氢-1h-苯并[d]氮杂-2(3h)-酮(2R,3R)-2,3-双((4-甲基苯甲酰基)氧基)琥珀酸 | (S)-1-amino-3-methyl-4,5-dihydro-1h-benzo[d]azepin-2(3h)-one (2R,3R)-2,3-bis(4-methylbenzoyloxy)succinate | C31H32N2O9 | 576.59 | | |
| 425386-60-3 | 司马西特 | semagacestat | C19H27N3O4 | 361.44 | 208-212 °C | |
| 42539-74-2 | 甲胺四氟硼酸盐 | methylammonium tetrafluoroborate | CH6BF4N | 118.87 | 197-201°C | |
| 42539-97-9 | 四乙基氟化铵三氢氟酸盐 | tetraethylammonium fluoride trihydrofluoride | C8H20FN.3HF | 209.27 | | |
| 425391-02-2 | | 4,4,4-trifluoro-3-hydroxy-1-(4-nitro-phenyl)-but-2-en-1-one | | | | |
| 425392-44-5 | 2-溴-5-氯噻唑-4-羧酸乙酯 | ethyl 2-bromo-5-chlorothiazole-4-carboxylate | C6H5BrClNO2S | 270.53 | | |
| 425392-45-6 | 5-氯-4-噻唑甲酸乙酯 | ethyl 5-chlorothiazole-4-carboxylate | C6H6ClNO2S | 191.64 | | |
| 425392-76-3 | | 5-bromo-4-chloro-6-(trifluoromethyl)pyrimidine | C5HBrClF3N2 | 261.43 | | 231.649ºC |
| 425394-71-4 | 3-溴-6-氯-邻二甲苯 | 3-bromo-6-chloro-o-xylene | C8H8BrCl | 219.5061 | | |
| 425394-89-4 | | 4,6-dichloropyrimidin-5-ol | C4H2Cl2N2O | 164.98 | | 242.2±35.0°C at 760 mmHg |
| 425399-05-9 | | casin | C20H22N2O | 306.4 | | |
| 425399-53-7 | | 2-(diphenylmethyl)-1,3-thiazol-4-amine | | | | |
| 4254-02-8 | 环戊腈 | CYCLOPENTANECARBONITRILE | C6H9N | 95.14 | −76 °C(lit.) | 67-68 °C10 mm Hg(lit.) |
| 4254-13-1 | | glycerol-ul-14c | C3H8O3 | 92.09 | | |
| 4254-14-2 | 左旋1,2-丙二醇 | (R)-1,2-propanediol | C3H8O2 | 76.09 | -57C | 187℃(12 |
| 4254-15-3 | (S)-(+)-1,2-丙二醇 | (S)-(+)-1,2-propanediol | C3H8O2 | 76.09 | -59-188℃ | 186-188℃ |
| 4254-17-5 | 2-羟基-1-(4-甲氧基苯基)-2-苯基乙酮 | 2-Hydroxy-1-(4-methoxyphenyl)-2-phenylethanone | C15H14O3 | 242.27 | | |
| 4254-20-0 | 1,2-双(4-氯苯基)-2-羟基乙酮 | 1,2-bis(4-chlorophenyl)-2-hydroxyethanone | | | | |
| 4254-29-9 | 2-茚醇 | 2-hydroxyindane | C9H10O | 134.18 | 65-70℃ | 120-123℃ |
| 4254-32-4 | 茚满-2-甲酸甲酯 | methyl indane-2-carboxylate | | | | |
| 4254-67-5 | 2-溴-4'-苄氧基苯乙酮 | 1-(4-(benzyloxy)phenyl)-2-bromoethanone | C15H13BrO2 | 305.17 | | 419.5°C |
| 4254-85-7 | 1,5-二羟基-3-戊酮 | 1,5-dihydroxypentan-3-one | C6H10O3 | 118.13 | | 271.0±15.0 °C at 760 mmHg (lit.) |
| 4254-88-0 | | l-a-aminosuberic acid | C8H15NO4 | 189.21 | | |
| 42540-40-9 | 头孢孟多 | 5-thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid, 7-(((formyloxy)phenylace | C19H17N6NaO6S2 | 512.49 | | |
| 42540-56-7 | | 1'-acetyl-spiro(cyclopentane-3'-indoline) | | | | |
| 425412-27-7 | 5-(2-氯苯基)-3-(3-硝基苯基)-1,2,4-噁二唑 | 5-(2-chlorophenyl)-3-(3-nitrophenyl)-1,2,4-oxadiazole | | | | |
| 425415-37-8 | n-(2-溴苯)-2-(三氟甲基)苯甲酰胺 | n-(2-bromophenyl)-2-(trifluoromethyl)benzamide | | | | |
| 42542-07-4 | | alpha-ethyl-3,4-methylenedioxy-phenethylamin hydrochloride | | | | |
| 42542-10-9 | | n,alpha-dimethyl-3-benzodioxole-5-ethanamine | | | | |
| 425425-25-8 | 2-氯-4-甲基-6-(吡咯烷-1-基)嘧啶 | 2-chloro-4-methyl-6-(pyrrolidin-1-yl)pyrimidine | C9H12ClN3 | 197.66 | | |
| 425426-80-8 | | 3-methoxy-5-(trifluoromethyl)thiophene-2-carboxylic acid | | | | |
| 425430-84-8 | 2-(4,5-二氟-2-硝基苯基)乙腈 | 2-(4,5-Difluoro-2-nitrophenyl)acetonitrile | C8H4F2N2O2 | 198.13 | | |
| 425432-04-8 | | poly(3,4-ethylenedioxythiophene)-n-2'-ethylhexyl-4,5-dicarboxylic imidide-benzo[c]thiophene) | | | | |
| 42544-24-1 | | 1,1-dipropyl-3-(3-trifluoromethyl-phenyl)-urea | | | | |
| 42545-22-2 | 1-甲基-1h-咪唑-4,5-二羧酸二甲酯 | dimethyl 1-methyl-1h-imidazole-4,5-dicarboxylate | | | | |
| 42545-34-6 | 5-(2-Nitrophenyl)thiophene-2-carbaldehyde | | C11H7NO3S | 233.24 | | |
| 42545-43-7 | | 2-(4-methoxyphenyl)thiophene | C11H10OS | | | |
| 42548-08-3 | | n-cbz-3-(cbz-amino)-dl-alanine | | | | |
| 42548-78-7 | n-乙基羟胺盐酸盐 | n-ethylhydroxylamine hydrochloride | C2H8ClNO | 97.54000000000001 | | 91.4°C |
| 42549-09-7 | | 4-Diethylaminophenyl isocyanide | 51-55 ℃(lit.) | 174.24 | 51-55 ℃(lit.) | |
| 42549-86-0 | | 2,2-dimethyl-7-octenoic acid | | | | |
| 4255-07-6 | 草酸锌,二水 | Zinc oxalate,dihydrate | C2O4Zn·2H2O | 189.44 | | |
| 4255-22-5 | | ethylene glycol 1,2-bis-(dihydrodicyclopentadienyl ether) | | | | |
| 4255-23-6 | | alfetamine | | | | |
| 4255-24-7 | | alpha-allyl-phenethylamin hydrochloride | | | | |
| 4255-62-3 | | 4,4-Dimethylcyclohexanone | C8H14O | 126.20 | 41-45 °C | 105-106℃ (80 Torr) |
| 4255-80-5 | | 6α-Methyl-9α,10β-pregn-4-ene-3,20-dione | C22H32O2 | 328.49 | | |
| 4255-94-1 | | 2,5-diethoxy-4-(4-morpholinyl)-benzenediazoniu hexafluorophosphate(1-) | | | | |
| 42551-55-3 | | 3-amino-butan-2-ol | C4H11NO | 89.14 | 19 °C | 165.27 °C (rough estimate) |
| 42553-22-0 | | 1,4-benzenedicarboxylic acid, polymer with hexahydro-2h-azepin-2-one and 4,4'-m | | | | |
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