柠檬酸钠/柠檬酸三钠/枸橼酸钠/柠檬酸钠二水合物/抗凝血剂,≥99.0%
- 产品编号：S0134
- 中文名称：柠檬酸钠/柠檬酸三钠/枸橼酸钠/柠檬酸钠二水合物/抗凝血剂
- 英文名称：Sodium citrate tribasic dihydrate
- 英文别名:Citric acid trisodium salt dihydrate, Trisodium citrate dihydrate
- CAS号:6132-04-3
- 分子式:C6H5Na3O7.2H2O
- 分子量:294.10
- 纯度:≥99.0%
- EC号:200-675-3
- MDL号:MFCD00150031
订货信息：
产品规格价格(RMB)
- S0134-100G10
- S0134-500G35
- S0134-100G(SIGMA分装)90
性能描述
| product line | BioXtra |
| assay | ≥99.0% (titration) |
| impurities | Insoluble matter, passes filter test |
| pH | 7.5-9.0 (20 °C, 0.1 M in H2O) |
| mp | >300 °C(lit.) |
| solubility | H2O: soluble0.1 M at 20 °C, clear, colorless |
| anion traces | chloride (Cl-): ≤0.001% |
| | sulfate (SO42-): ≤0.005% |
Biochem/physiol Actions
Sodium citrate can act as a buffering agent, resisting changes in pH. Used in blood collection tubes, the citrate chelates calcium ions in blood and thereby disrupts blood clotting. Citrate is a intermediate in the TCA cycle and fatty acid synthesis. Citrate is an allosteric modulator of acetyl-CoA carboxylase, the enzyme that regulates the conversion of acetyl-CoA to malonyl-CoA.
无色晶体或白色结晶粉末。味咸，并有清凉感。
易溶于水及甘油,难溶于醇类及其他有机溶剂.有潮解性,在热空气中有风化性.150℃以上失去结晶水并分解.
柠檬酸钠在化学上是优良的螯合剂/络合剂，在临床上采取新鲜血液时,需要加入一些消毒过的柠檬酸钠或草酸钠,就能起到防止血液凝固的作用,所以柠檬酸钠和草酸钠被称为抗凝血剂。
