柠檬酸钠 二水合物

• 产品号: C3434
• CAS号: 6132-04-3
• 分子式: C6H9Na3O9
• 分子量: 294.09957
• 纯 度: ≥99.0% (titration)

产品别名

• 标题: Sodium citrate tribasic dihydrate
• IUPAC标准名: trisodium 2-hydroxypropane-1,2,3-tricarboxylate dihydrate
• IUPAC传统名: trisodium citrate dihydrate
• 别名: 柠檬酸 三钠盐 二水合物; 柠檬酸三钠 二水合物

产品登记号

• MDL号: MFCD00150031
• CAS号: 6132-04-3
• EC号: 200-675-3
• PubChem SID: 24892616
• Beilstein号: 6104939

产品性质

• 痕量阴离子: chloride (Cl-): ≤0.001%
• 痕量阴离子: sulfate (SO42-): ≤0.005%
• 痕量阳离子: Al: ≤0.0005%
• 痕量阳离子: As: ≤0.00001%
• 痕量阳离子: Ba: ≤0.0005%
• 痕量阳离子: Bi: ≤0.0005%
• 痕量阳离子: Ca: ≤0.005%
• 痕量阳离子: Cd: ≤0.0005%
• 痕量阳离子: Co: ≤0.0005%
• 痕量阳离子: Cr: ≤0.0005%
• 痕量阳离子: Cu: ≤0.0005%
• 痕量阳离子: Fe: ≤0.0005%
• 痕量阳离子: K: ≤0.01%
• 痕量阳离子: Li: ≤0.0005%
• 痕量阳离子: Mg: ≤0.0005%
• 痕量阳离子: Mn: ≤0.0005%
• 痕量阳离子: Mo: ≤0.0005%
• 痕量阳离子: NH4+: ≤0.001%
• 痕量阳离子: Ni: ≤0.0005%
• 痕量阳离子: Pb: ≤0.0005%
• 痕量阳离子: Zn: ≤0.0005%
• 杂质: Insoluble matter, passes filter test
• 纯度: ≥99.0% (titration)
• 紫外吸收波长: A0.1M/260, H2O ≤0.010
• 紫外吸收波长: A/280 ≤0.010
• 熔点: >300 °C(lit.)
• pH值: 7.5-9.0 (20 °C, 0.1 M in H2O)
• 溶解度: H2O: soluble0.1 M at 20 °C, clear, colorless
• 个人保护装置: Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
• 德国WGK号: 1

产品详细信息

详细说明 (English)

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.