Riboflavin

CAS	83-88-5
Structure
Synonyms	6,7-Dimethyl-9-ribitylisoalloxazine
IUPAC Name	7,8-Dimethyl-10-[(2S,3S,4R)-2,3,4,5-tetrahydroxypentyl]benzo[g]pteridine-2,4-dione
Molecular Weight	376.36
Molecular Formula	C17H20N4O6
Canonical SMILES	CC1=CC2=C(C=C1C)N(C3=NC(=O)NC(=O)C3=N2)CC(C(C(CO)O)O)O
InChI	InChI=1S/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/s1
InChI Key	AUNGANRZJHBGPY-SCRDCRAPSA-N
Boiling Point	504.93 °C
Melting Point	290 °C(lit.)
Flash Point	9 °C
Purity	99%
Density	1.2112 g/cm³
pKa	1.7(at 25 °C)
pH	5.5-7.2
Appearance	Yellow to orange powder