Melting point: 290°C(dec.)(lit.),
specific rotation: -135º(c=5,0.05MNaOH),
boiling point: 504.93°C(roughestimate),
density: 1.2112(roughestimate),
refractive index -135°(C=0.5,JPMethod)
Point 9℃
storage condition 2-8°C
Solubility Veryslightlysolubleinwater, practicallyinsolubleinethanol(96percent).Solutionsdeteriorateonexposuretolight,especiallyinthepresenceofalkali.Itshowspolymorphism(5.9).
Acidity coefficient (pKa)1.7(at25℃)
Form Powder
-Odour Book (0.07g/l, H2O, 20°C)
Acid-base indicator discoloration pH range 6
Water solubility 0.07g/L (20ºC)
Sensitivity LightSensitive
Merck14, 8200
BRN97825 Stability Stable,
butlight-sensitive. Incompatible with strongoxidizing agents, reducing agents, bases, calcium,metallicsalts.Maybemoisturesensitive.InChIKeyAUNGANRZJHBGPY-SCRDCRAPSA-NCAS database 83-88-5
(CASDataBaseReference) NIST chemical substance information Riboflavine (83-88-5) EPA chemical substance information Riboflavin (83-88-5)
China
