化学名称: | L-半胱氨酸盐酸盐无水物 |
INCI名称: | 半胱氨酸 HCl |
英文名称: | L-CYSTEINE HCL MANHYDROUS |
CAS号: | 52-89-1 |
HS编码 | 2930909099 |
化学式: | C3H8ClNO2S |
分子量: | 102.12 |
中文别名: | L-半胱氨酸盐酸盐无水物; L-2-氨基-3-巯基丙酸盐酸盐; L-半胱氨酸盐酸盐 |
英文别名: | L-Cysteine hydrochloride; (R)-2-Amino-3-mercaptopropanoic acid hydrochloride CYSTEINE HCL |
指 标 Specification | 标 准 Standard |
外观 Appearance | 白色或类白色结晶性粉末White or almost white crystalline powder |
溶液外观 Appearance of the Solution | 透明无色至浅黄色Transparent colorless to light yellow |
pH值 pH value | 1.5~2.0 |
比旋度 Specification Rotation | +5.6°~+8.9° |
干燥失重 Loss on Drying | ≤2.0% |
灼烧残渣 Residue on Ignition | ≤0.1% |
氯化物Chloride | 22.3~22.6% |
硫酸盐sulfate | ≤0.03% |
重金属(铅) Heavy metal(Lead) | ≤10 ppm |
铁盐 Ironic Salt | ≤10 ppm |
铵盐Ammonium salt | ≤0.02% |
砷盐As | ≤1.0% |
透光率Light transmittance | ≥98.0% |
含量 Assay(drying basis) | 98.0~102.0% |
微生物检测 Microbial Test | |
总菌数 Total Aerobic | ≤1000cfu/g |
霉菌和酵母 Yeast & Mold | ≤100cfu/g |
大肠杆菌 E.coli | Negative |
沙门氏菌 Salmonella | Negative |
Package: In 25Kg net per fiber drum, inner polythene bags. We can provide the packing as per your request. |