化學(xué)名稱: | L-半胱氨酸鹽酸鹽無水物 |
INCI名稱: | 半胱氨酸 HCl |
英文名稱: | L-CYSTEINE HCL MANHYDROUS |
CAS號: | 52-89-1 |
HS編碼 | 2930909099 |
化學(xué)式: | C3H8ClNO2S |
分子量: | 102.12 |
中文別名: | L-半胱氨酸鹽酸鹽無水物; L-2-氨基-3-巰基丙酸鹽酸鹽; L-半胱氨酸鹽酸鹽 |
英文別名: | L-Cysteine hydrochloride; (R)-2-Amino-3-mercaptopropanoic acid hydrochloride CYSTEINE HCL |
指 標(biāo) Specification | 標(biāo) 準(zhǔn) Standard |
外觀 Appearance | 白色或類白色結(jié)晶性粉末White or almost white crystalline powder |
溶液外觀 Appearance of the Solution | 透明無色至淺黃色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% |
灼燒殘?jiān)?/span> Residue on Ignition | ≤0.1% |
氯化物Chloride | 22.3~22.6% |
硫酸鹽sulfate | ≤0.03% |
重金屬(鉛) Heavy metal(Lead) | ≤10 ppm |
鐵鹽 Ironic Salt | ≤10 ppm |
銨鹽Ammonium salt | ≤0.02% |
砷鹽As | ≤1.0% |
透光率Light transmittance | ≥98.0% |
含量 Assay(drying basis) | 98.0~102.0% |
微生物檢測 Microbial Test | |
總菌數(shù) Total Aerobic | ≤1000cfu/g |
霉菌和酵母 Yeast & Mold | ≤100cfu/g |
大腸桿菌 E.coli | Negative |
沙門氏菌 Salmonella | Negative |
Package: In 25Kg net per fiber drum, inner polythene bags. We can provide the packing as per your request. |