研发生产核黄素 维生素B2CAS: 83-88-5原料仅供出口或科研试验现货直销

中文名维生素B2英文名Riboflavin别名核黄素维生素B2维生素 B2维生素B2作用维生素B2价格7,8-二甲基-10-(1'-D-核糖基)-异咯嗪英文别名E 101vitasanb2VITAMIN GRiboflavinVitamin B2xypentyl)-Vitamin B_2RiboflavineLactoflavineRiboflavin (VB2)RIBOFLAVIN DC GRADERiboflavin (1.07609)Riboflavin Vitamin B2Vitamin B2 Feed GradeVitamin B2 (Riboflavine)RIBOFLAVIN USP (VITAMIN B-2)1-deoxy-1-(7,8-dimethyl-2,4-dioxo-3,4-dihydrobenzo[g]pteridin-10(2H)-yl)pentitol1-deoxy-1-(7,8-dimethyl-2,4-dioxo-3,4-dihydrobenzo[g]pteridin-10(2H)-yl)-D-ribitol5-deoxy-5-(7,8-dimethyl-2,4-dioxo-3,4-dihydrobenzo[g]pteridin-10(2H)-yl)-D-ribitolCAS83-88-5EINECS201-507-1化学式C17H20N4O6分子量376.36InChIInChI=1/C17H20N4O6/c1-7-3-9-10(4-8(7)2)21(5-11(23)14(25)12(24)6-22)15-13(18-9)16(26)20-17(27)19-15/h3-4,11-12,14,22-25H,5-6H2,1-2H3,(H,20,26,27)/t11-,12+,14-/m0/s1InChIKeyAUNGANRZJHBGPY-SCRDCRAPSA-N密度1.2112 (rough estimate)熔点290°C (dec.)(lit.)沸点504.93°C (rough estimate)比旋光度-135 º (c=5, 0.05 M NaOH)闪点9℃水溶性0.07 g/L (20 ºC)溶解度Very slightly soluble in water, practically insoluble in ethanol (96 per cent). Solutions deteriorate on exposure to light, especially in the presence of alkali. It shows polymorphism (5.9).折射率-135 ° (C=0.5, JP Me酸度系数1.7(at 25℃)PH值5.5-7.2 (0.07g/l, H2O, 20°C)存储条件2-8°C稳定性Stable, but light-sensitive. Incompatible with strong oxidizing agents, reducing agents, bases, calcium, metallic salts. May be moisture sensitive.敏感性Light Sensitive外观Powder颜色Yellow to orange气味Slight odourMerck14,8200BRN97825物化性质黄至橙黄色结晶性粉末，微臭，味微苦。熔点280℃(分解)。易溶于碱性溶液和氯化钠溶液，微溶于水，略溶于乙醇，不溶于yimi和氯仿。水溶液呈黄绿色，饱和水溶液呈中性。耐热性、耐酸性较好，在碱性溶液中或受紫外线照射则易受破坏，对还原剂也不稳定。大白鼠腹腔注射LD50560mg/kg，ADI 0～0.5mg/kg(FAO/WHO，1994)。

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