基本信息
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维生素B2
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83-88-5
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核黄素; 7,8-二甲基-10-(1'-D-核糖基)-异咯嗪
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C17H20N4O6
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376.37
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Riboflavin
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201-507-1
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1.65
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Riboflavine(7CI); Benzo[g]pteridine, riboflavin deriv.; (-)-Riboflavin;1-Deoxy-1-(3,4-dihydro-7,8-dimethyl-2,4-dioxobenzo[g]pteridin-10(2H)-yl)-D-ribitol;6,7-Dimethyl-9-D-ribitylisoalloxazine; 6,7-Dimethyl-9-ribitylisoalloxazine;7,8-Dimethyl-10-ribitylisoalloxazine; Beflavin; Beflavine;Benzo[g]pteridine-2,4(3H,10H)-dione,7,8-dimethyl-10-(D-ribo-2,3,4,5-tetrahydroxypentyl)-; C.I. 50900; C.I. FoodYellow 15; D-Ribitol,1-deoxy-1-(3,4-dihydro-7,8-dimethyl-2,4-dioxobenzo[g]pteridin-10(2H)-yl)-; E101; E 101 (dye); Flavaxin; Flavin BB; Flaxain; Food Yellow 15; Hyre;Lactobene; Lactoflavin; Lactoflavine; NCI 0033298; NSC 33298; Ribipca;Ribocrisina; Riboderm; Ribosyn; Ribotone; Ribovel; Ricrolin; Russupteridineyellow III; San Yellow B; Vitaflavine; Vitamin B2; Vitamin G; Vitasan B2
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9℃
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290°C (dec.)(lit.)
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504.93°C (rough estimate)
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详细信息
维生素B2(核黄素)
CAS：83-88-5
分子式：C17H20N4O6
分子量：376.37
项 目 指 标
比旋度 -120°~-140°
酸碱度 合格
干燥失重% ≤ 1.0
炽灼残渣% ≤ 0.2
含量% 98.0~102.0
感光黄素 ≤ 0.016
性状：黄色至黄色结晶性粉末，有多种晶型，微臭，味带苦。极难溶于水。不溶于乙醚和氯仿，但溶于稀碱液。维生素B2，又称核黄素。分子式C17H20N4O6。它是人体必需的13种维生素之一，作为维生素B族的成员之一，微溶于水，可溶于氯化钠溶液，易溶于稀的氢氧化钠溶液。
