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LC4959 Riboflavin

Ph Eur,BP,JP,USP,E 101 (i)

 

Order number Packaging Quantity Price €
AC31959 Metal can 2.5 kg Inquire
AC31959 Fibre carton 10 kg Inquire

 

Product information
Grade Ph Eur,BP,JP,USP,E 101 (i)
Synonyms Lactoflavine, Vitamin B2
Hill Formula C17H20N4O6
HS Code 2936 23 00
EC number 201-507-1
Molar mass 376.36 g/mol
CAS number 83-88-5

 

Chemical and physical data
Solubility (20 °C) slightly soluble
Melting point >300 °C
Molar mass 214.04 g/mol
Bulk density 620 kg/m3
pH value 5.5 – 7.2 (0.1 g/l, H2O, 20 °C)

 

Safety information
Storage class 10 – 13 Other liquids and solids
WGK NWG not water endangering
Disposal 3
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.

 

Toxicological data
LD 50 oral LD50 rat > 10000 mg/kg
LD 50 dermal LD50 rat > 5000 mg/kg

 

Specifications
Assay (spectrophotometrically; calc. on dried substance) 98.0 – 102.0 %
Appearance yellow to orange yellowish powder
Identity
– TLC
conforms
– Fluorescence test conforms
– IR-spectrum conforms
Absorbance maxima at about 223 nm, 267 nm, 373 nm and 444 nm
Absorption ratio
– A 373 nm / A 267 nm
0.31 – 0.33
– A 444 nm / A 267 nm 0.36 – 0.39
Spec. rotation [α]20/D
– 5 g/l, sodium hydroxide (0.05 mol/l), calc. on dried substance, Ph. Eur.
-135 – -115 °
– 5 g/l, dilute sodium hydroxide and ethanol, calc. on dried substance, JP -142 – -128 °
Spec. rotation [α]25/D (5 g/l, sodium hydroxide (0.05 mol/l), calc. on dried substance, USP) -135 – -115 °
Primary aromatic amines (as Aniline) ≤ 100 ppm
Heavy metals (as Pb) ≤ 40 ppm
As (Arsenic) ≤ 3 ppm
Cd (Cadmium) ≤ 1 ppm
Hg (Mercury) ≤ 1 ppm
Pb (Lead) ≤ 10 ppm
Lumiflavin (USP) passes test
Residual solvents (Ph.Eur./USP/ICH) class 2 (Methanol) ≤ 3000 ppm
Residual solvents (Ph.Eur./USP/ICH) class 3 (3-Methyl-1-butanol) ≤ 5000 ppm
Other residual solvents (Ph.Eur./USP/ICH) excluded by production process
Related substances (HPLC)
– Impurity A (Lumiflavin)
≤ 0.025 %
– Impurity B ≤ 0.20 %
– Impurity C ≤ 0.20 %
– Impurity D ≤ 0.20 %
– Largest unspecified impurity ≤ 0.10 %
– Sum of all impurities ≤ 0.5 %
Sulfated ash (600 °C) ≤ 0.1 %
Loss on drying (105 °C) ≤ 1.5 %

 

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