乳清酸/4-羧酸/6-羧酸/维生素B13

99%+,粉色粉沫,规格为：100g/500g/1kg  市场价格：5元/16元/245元，           ，用英文怎么说姓命名乳清酸用英文怎么说姓同义词乳清酸无水;6-二氧代-4-嘧啶羧酸;6-四氢-2;乳清酸50G;1,2,3,6-四氢-2,6-二氧-4-嘧Chemicalbook啶甲酸;1,2,3,6-四氢-2,6-二氧代-4-嘧啶羧酸;乳清酸,各种维生素B13;乳清酸,脲嘧啶-4-羧酸用英文怎么说命名Oroticacid，CAS号65-86-五分子式C5H4N2O6分子量156.1，乳清咸性质融点≥300°C熔点280.29°C(roughestimate)比热容1.6814(roughestimate)折射角率1.4800(estimate)保管先决条件Sealedindry,RoomTemperature水解度DMSO:32mChemicalbookg/mL(205.00mM;Needultrasonicandwarming)酸度公式(pKa)pK1:1.8(+1);pK2:9.55(0)(25°C)姿态CrystallinePowder颜色图片White水水解性Slightlysoluble                                  Description 特性White crystals or crystalline powder洁白心得体或心得体性粉状 Conforms 遵循Identification 签别 Infrared absorption 红外 Conforms 具备Solubility消融性Almost insoluble in water, almostinsoluble in 96% ethanol and ether近乎不易溶水水，近乎不易溶水 96%的乙醇和**Conforms 不符合Assay水平 99.0~101.0% 99.5%Loss on drying 空气干燥失重 ≤12.0% 10.2%Residue on ignition炽灼碎渣 ≤0. 10% 0.08%pH 2.2~3.0 2.7Chloride氯化物 ≤100ppm ＜100ppmIndividual impurities 单杂 ≤0.1% ＜0.1%Total impurities 总杂 ≤0.3% ＜0.3%Heavy metals 高价属(Pb) ≤20ppm ＜20ppmLead 铅 ≤1ppm ＜1ppmCadmium 镉 ≤0.5ppm ＜0.5ppmMercury 汞 ≤0.1ppm ＜0.1ppmArsenic 砷 ≤1ppm ＜1ppm