Vitamin B2 CAS 83-88-5, also known as riboflavin, is a type of B vitamins that are slightly soluble in water and stable when heated in neutral or acidic solutions. It is a component of the body’s xanthase like subunits, and if lacking, it can affect the body’s biological oxidation and cause metabolic disorders. Pathological changes often manifest as inflammation of the mouth, eyes, and external genitalia, such as keratitis, cheilitis, glossitis, conjunctivitis, and scrotum inflammation. Therefore, this product is often used for the prevention and treatment of these diseases. The storage of vitamin B2 in the body is very limited and needs to be supplemented daily by diet. The two properties of vitamin B2 are the main reasons for its loss: (1) it can be destroyed by light; (2) Heating in an alkaline solution can cause damage.

Chinese name: Vitamin B2

Foreign name: Vitamin B2

Nickname: Riboflavin, Vitamin B2, Vitamin B

Molecular formula: C17H20N4O6

Molecular weight: 376.37

CAS login number: 83-88-5

EINECS login number: 201-507-1

Specific rotation: -135 ° (c=5, 0.05 M NaOH)

Density: 1.7 g/cm ³

Melting point: 290 ℃

Boiling point: 715.6 ℃

Flash point: 386.6 ℃

Water solubility: slightly soluble in water

Appearance: Yellow or orange crystalline powder

Physical and chemical properties

Water soluble vitamin, but slightly soluble in water, with a solubility of 12mg/100mL at 27.5 ℃. Soluble in sodium chloride solution, easily soluble in dilute sodium hydroxide solution, easily soluble in alkaline solution, and stable in strong acid solution. Heat resistance and oxidation resistance. Light and ultraviolet irradiation cause irreversible decomposition.

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