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抑糜朊酶素

时间:2023-07-19  来源:化工号   作者:C31H41N7O6
密度1.3±0.1 g/cm3
熔点276-278℃
分子式C31H41N7O6
分子量607.701
精确质量607.311829
PSA201.61000
LogP4.00
折射率1.640
储存条件

-20°C密闭,避光,通风干燥处

稳定性

Biochem/physiol Actions Chymostatin is a strong inhibitor of many proteases, including chymotrypsin, papain, chymotrypsin-like serine proteinases, chymases, and lysosomal cysteine proteinases such as cathepsins A,B,C, B, H, and L. It weakly inhibits human leucocyte elastase. It is effective at a final concentration of 100 to 200 μg/ml (10 to 100 μM). Chymostatin is often included in protease inhibitor cocktails used with plant extracts.

Other Notes A mixture of A (major), B and C components. A: X=Leu; B: X=Val; C: X=Ile

chymostatin A MW = 607.7

chymostatin B MW = 593.7

chymostatin C MW = 607.7

Preparation Note Solubility testing in glacial acetic acid at 10 mg/ml yields a clear solution, which is usually colorless, but can be yellow in appearance. It is reportedly also soluble in DMSO; only slightly soluble in water and short-chain alcohols; insoluble in ethyl acetate, butyl acetate, ether, hexane, and petroleum ether. Stock solutions ( 10 mM ) can be prepared in DMSO and are stable for months at -20 °C . Stock solutions can also be made in 0.1 M HCl. Dilute solutions (10-100 μM) are only stable for several hours, due to oxidation of the terminal aldehyde.

水溶解性DMSO: 10 mM Stock solutions stable for months at −20 °C.
计算化学

计算化学数据:

1、 疏水参数计算参考值(XlogP):未确定

2、 氢键供体数量:21

3、 氢键受体数量:27

4、 可旋转化学键数量:44

5、 拓扑分子极性表面积(TPSA):612

6、 重原子数量:131

7、 表面电荷:0

8、 复杂度:3010

9、 同位素原子数量:0

10、 确定原子立构中心数量:13

11、 不确定原子立构中心数量:3

12、 确定化学键立构中心数量:0

13、 不确定化学键立构中心数量:0

14、 共价键单元数量:1

更多

1. 性状:未确定。

2. 密度(g/mL, 25 ℃ ):未确定

3. 相对蒸汽密度(g/mL,空气=1):未确定

4. 熔点(ºC):未确定

5. 沸点(ºC,常压):未确定

6. 沸点(ºC,5.2kPa):未确定

7. 折射率:未确定

8. 闪点(ºC):未确定

9. 比旋光度(º):未确定

10. 自燃点或引燃温度(ºC):未确定

11. 蒸气压(kPa,20ºC):未确定

12. 饱和蒸气压(kPa,60ºC):未确定

13. 燃烧热(KJ/mol):未确定

14. 临界温度(ºC):未确定

15. 临界压力(KPa):未确定

16. 油水(辛醇/水)分配系数的对数值:未确定

17. 爆炸上限(%,V/V):未确定

18. 爆炸下限(%,V/V):未确定

19. 溶解性:未确定

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