化學(xué)名稱: | L-色氨酸 |
INCI名稱: | 色氨酸 |
英文名稱: | L-TRYPTOPHAN |
CAS號: | 73-22-3 |
HS編碼 | 2933990099 |
化學(xué)式: | C11H12N2O2 |
分子量: | 204.23 |
中文別名: | L-色氨酸; L-2-氨基-3-吲哚基丙酸; 8,11-Dichloro-5H-dibenzo[b,e][1,4]diazepine; (S)-2-氨基-3-(3-吲哚基); L-2-氨基-3-吲哚基-1-丙酸; L-胰化蛋白氨基酸 |
英文別名: | L-tryptophan; TRYPTOPHAN |
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 | 5.4~6.4 |
比旋度 Specification Rotation | ?29.4°~+?32.8° |
干燥失重 Loss on Drying | ≤0.2% |
灼燒殘?jiān)?/span> Residue on Ignition | ≤0.1% |
氯化物Chloride | ≤0.02% |
硫酸鹽sulfate | ≤0.02% |
重金屬(鉛) Heavy metal(Lead) | ≤10 ppm |
鐵鹽 Ironic Salt | ≤20 ppm |
透光率Light transmittance | ≥95.0%(430nm) |
含量 Assay(drying basis) | 98.5~101.5% |
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. |