| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 4253-90-1 | 二叔丁基三硫化物 | di-tert-Butyl trisulphide | | | | |
| 4253-91-2 | | 1,1'-sulfinylbis-propan | C6H14OS | 134.24 | | |
| 4253-99-0 | | dipentyl sulfone | C10H22O2S | 206.34 | | |
| 42530-03-0 | 4,6-氨基-2-溴烟酰腈 | 4,6-diamino-2-bromonicotinonitrile | | | | |
| 42530-35-8 | 6'-[乙基(4-甲基苯基)氨基]-2'-(甲基苯基氨基)-螺[异苯并呋喃-1(3H),9'-(9H)占吨]-3-酮 | 9'-(9H)xanthen]-3-one, 6'-[ethyl(4-methylphenyl)amino]-2'-(methylphenylamino)-Spiro[isobenzofuran-1(3H) | C36H30N2O3 | | | |
| 42530-53-0 | | 8,11-dichloro-7h-benz[de]anthracen-7-on | | | | |
| 42534-61-2 | | (1-alpha(s*),3-beta)-(+-)-oxo- 3-(2-propenyl)-2-cyclopenten-1-yl este | | | | |
| 42536-97-0 | | cyclopentaneacetic acid, 3-oxo-2-(2-pentenyl)-, methyl ester, [1 alpha,2 alpha( | | | | |
| 425365-64-6 | 罗红霉素ep杂质g | roxithromycin ep impurity g | | | | |
| 425365-65-7 | 12-脱氧罗红霉素 | 12-deoxy roxithromycin | | | | |
| 425365-66-8 | 罗红霉素ep杂质i | roxithromycin ep impurity i | | | | |
| 42537-57-5 | | 3-(3-nitro-phenylcarbamoyl)-acrylic acid | | | | |
| 42537-72-4 | | n-methyl-l-methionine | | | | |
| 42537-96-2 | | z-leu-ile-oh | C20H30N2O5 | 378.46 | | |
| 42537-99-5 | | h-ile-ile-oh | C12H24N2O3 | 244.33 | | |
| 425373-14-4 | | 2-(4-iso-propoxy-phenyl)-quinoline-4-carboxylic acid | | | | |
| 425373-45-1 | | 1-(1,3-dimethyl-1h-indol-2-yl)-1-butanone | | | | |
| 425373-64-4 | | 3-(2-bromophenyl)-5-(4-chlorophenyl)-1,2,4-oxadiazole | | | | |
| 425378-68-3 | 2-氟-5-硝基苯硼酸频哪醇酯 | 2-fluoro-5-nitrobenzeneboronic acid pinacol ester | | | | |
| 425378-85-4 | 4-氟-3-甲氧基苯硼酸频哪醇酯 | 4-fluoro-3-methoxybenzeneboronic acid pinacol ester | | | | |
| 425379-16-4 | | 2-bromo-3-fluorobenzonitrile | | | | |
| 425379-93-7 | | 3-fluoro-4-(1h-pyrazol-1-yl)aniline | | | | |
| 42538-01-2 | | n-cbz-ile-ile | C20H30N2O5 | 378.46 | | |
| 42538-31-8 | | (S)-3-amino-2-piperidone hydrochloride | | | | |
| 42538-40-9 | L-2-溴苯丙氨酸 | L-2-Bromophenylalanine | | | | |
| 42538-53-4 | | glycylglycyl-!-alanine | C7H13N3O4 | 203.19 | | |
| 42538-54-5 | | h-gly-b-ala-gly-oh | C7H13N3O4 | 203.19 | | |
| 42538-64-7 | | boc-glycine cesium salt | | | | |
| 425380-37-6 | 4-溴-7-甲氧基-1h-吡咯并[2,3-c]吡啶 | 4-bromo-7-methoxy-1h-pyrrolo[2,3-c]pyridine | | | | |
| 425380-38-7 | 4-溴-7-氯-1h-吡咯并[2,3-c]吡啶 | 4-bromo-7-chloro-1h-pyrrolo[2,3-c]pyridine | | | | |
| 425380-39-8 | 7-甲氧基-4-氮杂吲哚 | 7-methoxy-1h-pyrrolo[3,2-b]pyridine | | | | |
| 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 | | | | |
| 425386-60-3 | 司马西特 | semagacestat | | | | |
| 42539-74-2 | 甲胺四氟硼酸盐 | methylammonium tetrafluoroborate | | | | |
| 42539-97-9 | 四乙基氟化铵三氢氟酸盐 | tetraethylammonium fluoride trihydrofluoride | | | | |
| 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 | | | | |
| 425392-45-6 | 5-氯-4-噻唑甲酸乙酯 | ethyl 5-chlorothiazole-4-carboxylate | | | | |
| 425392-76-3 | | 5-bromo-4-chloro-6-(trifluoromethyl)pyrimidine | | | | |
| 425394-71-4 | 3-溴-6-氯-邻二甲苯 | 3-bromo-6-chloro-o-xylene | | | | |
| 425394-89-4 | | 4,6-dichloropyrimidin-5-ol | | | | |
| 425399-05-9 | | casin | | | | |
| 425399-53-7 | | 2-(diphenylmethyl)-1,3-thiazol-4-amine | | | | |
| 4254-02-8 | 环戊腈 | CYCLOPENTANECARBONITRILE | C6H9N | 95.14 | | |
| 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 | | 187℃(12 |
| 4254-15-3 | (S)-(+)-1,2-丙二醇 | (S)-(+)-1,2-propanediol | C3H8O2 | 76.09 | -59-188℃ | 186-188℃ |
| 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-indanol | C9H10O | 134.18 | 65-70℃ | 120-123℃ |
| 4254-32-4 | 茚满-2-甲酸甲酯 | methyl indane-2-carboxylate | | | | |
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