Riboflavin (VB2)

Description of Riboflavin (VB2):
Riboflavin (VB2) is yellow or orange crystalline powder with a little bitter and a little odor. It is easy to be metamorphosed when solution the Riboflavin (VB2)，and the change in ray or alkalescence is faster. Melting point of Riboflavin (VB2) is 280℃（dissociation. It is very slightly soluble in water and alcohol.
Riboflavin (VB2) conforms to USP25/BP98
Riboflavin (VB2) ‘s Usage：
As a kind of chemical product for treatment illness, Riboflavin (VB2) can cure disease of scarcity of VB2
Package of Riboflavin (VB2):
Inside packing ——edible polyethylene plastic film edible
Outside packing——carton（51*47*30cm）
Net weight: 10kg; Gross weight: 12kg.
Storage and Transportation of Riboflavin (VB2)：
Riboflavin (VB2) must be stored in ventilated places as well as dry, shady and cool warehouse, and Riboflavin (VB2) cannot be mixed with poisonous substance. The temperature must be lower than 30℃. Transportation method of Riboflavin (VB2) is the same as its storage.
Specification of Riboflavin (VB2):

Item	Index（USP25）	Index（BP98）
Exterior	Yellow or orange	Yellow or orange
Identification	Positive reaction	Positive reaction
SpecificRotation[α]	+56.5º~+59.5º	-115º~-135º
Acidity or alkalinity(PH)		Up to standard
Loss on drying	≤1.5%	≤1.5%
Residue on Ignition	≤0.3%	/
Lumiflavine	440nmNMT, ≤0.025	Conform
Light absorption	/	A375nm/267nm=0.31~0.33 A444nm/267nm=0.36~0.39
Content	98~102%	98~101%
Volatile organic impurities	Conform	/

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