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- 详细信息
- 文献和实验
- 技术资料
- 保质期:
两年
- 英文名:
(S)-(+)-Camptothecin
- 库存:
99
- 供应商:
江蓝纯
- CAS号:
7689-03-4
属性
| 密度 | 1.5100 |
| 熔点 | 259-263°C |
| 溶解性 | Soluble in chloroform/methanol (4:1) (4 mg/ml), DMSO (10 mg/ml), methanol (40 mg/ml), 0.1N sodium hydroxide (50 mg/ml), and acetic acid. Insoluble in water. |
| 存贮条件 | 储存温度2-8℃ |
描述
| 产品介绍 | 微溶于乙醇、氯仿,难溶于水。与酸不能生成稳定的盐,与氢氧化钠溶液加热反应可生成钠盐而溶于水。钠盐水溶液澄明具蓝色荧光 |
| 别名 | 喜树碱;4-乙基-4-羟基-1H-吡喃[3',4':6,7]氮茚[1,2]喹啉-3,14(4H,12H)-二酮;4-Ethyl-4-hydroxy-1H-pyrano-[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H,12H)-dione |
| 生化机理 | (S)-(+)-Camptothecin binds irreversibly to the DNA-topoisomerase I complex, inhibiting the reassociation of DNA after cleavage by topoisomerase I and traps the enzyme in a covalent linkage with DNA. The enzyme complex is ubiquinated and destroyed by the 26S proteasome, thus depleting cellular topoisomerase I. Blocks the cell cycle in S-phase at low does and induces apoptosis in a large number of normal and tumor cell lines by cell cycle-dependent and cell cycle-independent processes. |
| 应用 | 不可逆转地的结合到DNA拓扑异构酶I复合物上,影响细胞周期进程 |
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文献和实验据中新网、凤凰网等报道,11 月 4 日凌晨,福建泉港东港石油化工公司在装卸作业时造成 6.97 吨裂解碳九泄露,导致 6.97 吨碳九产品泄露,对水体、大气造成污染。△ 图片来源:中新网碳九是啥?「碳九」是石化工业中的一类常见产品,即产品分子中含有 9 个左右的碳氢化合物。由于分子量及物化性质接近,工业上进一步细分成本较高。因此「碳九」这种多组分混合物常常作为产品直接运输使用。碳九分子量是一种介于汽油和柴油之间的石化产品,应用不及汽油和柴油普及,是石油化工的一种常见副产物。但碳九
Enzymatic Synthesis of (S)-Phenylalanine and Related (S)-Amino Acids by Phenylalanine Dehydrogenase
substituents in the reductive amination reaction. Optically pure (S)-phe and other (S)-amino acids are quantitatively synthesized from their oxo-analogs using PheDH, with a regeneration of NADH by formate dehydrogenase from Candida boidinii No. 2201. Acetone
have led to the conclusion that CYP2C19 is a major P450 responsible for (S)-mephenytoin 4’-hydroxylation activity in human liver microsomes (1 , 2 ). This is supported by the finding that cDNA-expressed CYP2C19 has a 50-to lOO-fold greater turnover number
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