武汉驰飞化工原料厂
主营产品: 苦氨酸钠,橼酸枸铋钾,2,4-二甲基吡咯,2,5-二甲氧基苯乙胺,吲哒帕胺,邻基苯酚钠盐苯,4-氯丁酰氯,硝酸异丙酯 |
武汉驰飞化工原料厂
主营产品: 苦氨酸钠,橼酸枸铋钾,2,4-二甲基吡咯,2,5-二甲氧基苯乙胺,吲哒帕胺,邻基苯酚钠盐苯,4-氯丁酰氯,硝酸异丙酯 |
参考价 | 面议 |
N-乙酰-L-酪氨酸
英文名称: N-Acety-L-Tyrosine
质量指标:
批 号 : 051120 检验日期:Nov21 ,2005
项 目 标 准 检 测 结 果
旋光 [α]D20 46.5 to49.0 ° 47.5 °
溶解状况 Not more than96.0% 98.2%
含氯量 (Cl) Not more than 0.02% Not more than 0.02%
氨盐 (NH4 ) Not more than 0.02% Not more than 0.02%
硫酸根 (SO4 ) Not more than 0.020% Not more than 0.020%
铁 Iron(Fe) Not more than 30ppm Not more than 10ppm
重金属(Pb) Not more than 10ppm Not more than 5ppm
砷 (as As2o3) Not more than 1ppm Not more than 1ppm
其它氨基酸 Chromatographically
Not detectable conforms
干燥失重 Not more than 0.50% Not more than0.20%
灼烧残渣 Not more than 0.10% Not more than 0.08%
含量 99.0 to 101.0% 99.6%