ItemStandardAnalysis dataAppearanceWhite or off-white crystalline powderWhite or off-white crystalline powderSpecific Rotation(C=2,5NHCL)-27.6°~ -29.0-28.1°Chloride (Cl)not more than 0.10%<0.10%Loss on dryingnot more than 0.2%0.11%Residue on Ignition not more than 0.2% 0.07%Heavy Metals(Pb)not more than 10ppm<10 ppmAssay98.0 to 101.0%99.1%
ItemStandardAnalysis dataAppearanceWhite powderConforms Chloride (Cl)Not more than0.04%0.016%Heavy metal(Pb)Not more than 10ppm8ppmArsenic(As2O3)Not more than 2ppm<1ppmSulfate(SO4)Not more than 0.02%0.005%Iron(Fe)Not more than 10ppm6ppmLoss on dryingNot more than 0.20%0.19%Residue on ignition (sulfated)Not more than 0.20%0.08%Assay98.0 to101.0%99.0%ConclusionThe product meets the standard.
ItemsStandardAnalysis dataAppearanceWhite crystals or crystalline powderconformsSpecific rotation[α]20/D(C=1 Acetic acid)+9.3°+ 2°8.14°Melting point 159 to 168℃160℃Heavy metal(Pb)Not more than 20ppm<20ppmArsenic (As2O3)Not more than 2ppm<2ppmLoss on DryingNot more than 0.50%0.18%Residue on ignitionNot more than 0.30%0.1%Assay98.0% to 102%98.6%
ItemsStandardAnalysis dataAppearanceWhite crystals or crystalline powderconformsSpecific rotation[α]20/D(C=1 Acetic acid)+9.3°+ 2°8.14°Melting point 159 to 168℃160℃Heavy metal(Pb)Not more than 20ppm<20ppmArsenic (As2O3)Not more than 2ppm<2ppmLoss on DryingNot more than 0.50%0.18%Residue on ignitionNot more than 0.30%0.1%Assay98.0% to 102%98.6%
我们的优势产品: 1、焦谷氨酸、谷氨酸、脯氨酰胺、焦谷氨酸醇、茶氨酸、酪氨酸、亮氨酸系列及其衍生物; 2、手性(D)氨基酸:D-组氨酸、D-焦谷氨酸、D-谷氨酸、D-亮氨酸、D-酪氨酸等; 3、消旋(DL)氨基酸:DL-酪氨酸、DL-缬氨酸、DL-亮氨酸、DL-苏氨酸、DL-精氨酸盐酸盐等; 4、保护类氨基酸系列(Boc、Fmoc、Cbz、乙酰类、酯类); 5、氨基酸复合盐(L-精氨酸-L-天门冬氨酸、L-精氨酸-L-焦谷氨酸、L-赖氨酸-L-谷氨酸); 6、肽类:双甘肽、三甘肽、四甘肽、谷氨酰胺-色氨酸。 7、医药中间体:拉科酰胺、美他多辛我们的优势技术: 1、焦谷氨酸、茶氨酸、双甘肽、脯氨酰胺等系列及其衍生物的生产; 2、多肽类及酰胺类氨基酸产品的合成; 3、植物源氨基酸提取; 4、手性氨基酸的制造; 5、羟基保护、羧基保护、胺基保护、酚羟基保护、硫醇保护