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83-88-5

Name Riboflavin
CAS 83-88-5
EINECS(EC#) 201-507-1
Molecular Formula C17H20N4O6
MDL Number MFCD00005022
Molecular Weight 376.36
MOL File 83-88-5.mol

Chemical Properties

Appearance Yellow to orange/yellow crystalline powd
Melting point  290 °C (dec.)(lit.)
alpha  -135 º (c=5, 0.05 M NaOH)
Boiling point  504.93°C (rough estimate)
density  1.2112 (rough estimate)
refractive index  -135 ° (C=0.5, JP Method)
Fp  9℃
storage temp.  2-8°C
solubility  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).
form  Powder
pka 1.7(at 25℃)
color  Yellow to orange
Odor Slight odour
PH 5.5-7.2 (0.07g/l, H2O, 20°C)
PH Range 6
Stability: Stable, but light-sensitive. Incompatible with strong oxidizing agents, reducing agents, bases, calcium, metallic salts. May be moisture sensitive.
Water Solubility  0.07 g/L (20 ºC)
Sensitive  Light Sensitive
Merck  14,8200
BRN  97825
BCS Class 1
InChIKey AUNGANRZJHBGPY-SCRDCRAPSA-N
LogP -2.009 (est)
Uses
Riboflavin (83-88-5) is the water-soluble vitamin b2 required for healthy skin and the building and maintaining of body tissues. it is a yellow to orange-yellow crystalline powder. it acts as a coenzyme and carrier of hydrogen. it is stable to heat but may dissolve and be lost in cooking water. it is relatively stable to storage. sources include leafy vegetables, cheese, eggs, and milk.
CAS DataBase Reference 83-88-5(CAS DataBase Reference)
NIST Chemistry Reference Riboflavine(83-88-5)
EPA Substance Registry System 83-88-5(EPA Substance)

Safety Data

Hazard Codes  F,T
Risk Statements 
Safety Statements 
S24/25:Avoid contact with skin and eyes .
RIDADR  UN1230 - class 3 - PG 2 - Methanol, solution
WGK Germany  1
RTECS  VJ1400000
8-10-21
TSCA  Yes
HS Code  29362300
Safety Profile
Poison by intravenous route. Moderately toxic by intraperitoneal and subcutaneous routes. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx.
Hazardous Substances Data 83-88-5(Hazardous Substances Data)
Toxicity
LD50 in rats (g/kg): >10 orally, 5.0 s.c., 0.56 i.p. (Unna, Greslin)

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Hazard Information

Material Safety Data Sheet(MSDS)

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