化学名称: | D-色氨酸 |
INCI名称: | 色氨酸 |
英文名称: | D-TRYPTOPHAN |
CAS号: | 153-94-6 |
HS编码 | 2933990099 |
化学式: | C11H12N2O2 |
分子量: | 204.23 |
中文别名: | D-色氨酸; D-2-氨基-3-(β-吲哚)丙酸; D-(+)一色氨酸; D-A-氨基-3-吲哚基-1-丙酸; D-(+)-色氨酸; D-Α-氨基-3-吲哚丙酸 |
英文别名: | D-tryptophan; D-Tryptophan; (R)-2-Amino-3-(3-indolyl)propionic acid; D-α-Amino-3-indolepropionic acid; (2R)-2-amino-3-(1H-indol-3-yl)propanoic acid; D(+)-Tryptophan; (R)-(+)-2-Amino-3-(3-indolyl)propionic Acid |
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 | 5.4~6.4 |
比旋度 Specification Rotation | −29.4°~+−32.8° |
干燥失重 Loss on Drying | ≤0.2% |
灼烧残渣 Residue on Ignition | ≤0.1% |
氯化物Chloride | ≤0.02% |
硫酸盐sulfate | ≤0.02% |
重金属(铅) Heavy metal(Lead) | ≤10 ppm |
铁盐 Ironic Salt | ≤20 ppm |
透光率Light transmittance | ≥95.0%(430nm) |
含量 Assay(drying basis) | 98.5~101.5% |
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. |