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Specifications

Polyvinylpyrrolidone 40,000 MW is a synthetic polymer consisting of linear 1-vinyl-2-pyrrolidinone groups with an average molecular weight of 40,000 and is characterized by its viscosity in aqueous solution, expressed as K value. It is used in pharmaceutical manufacturing as well in plant and embryo tissue culture as a solubilizer and complexing agent.
Catalog #	P4502
Appearance	White powder
Water	5%
N-Vinylpyrrolidone	0.001%
	pH (5%):
	3.0-5.0
K Value	27.0-32.4
Residue on Ignition	0.1%
Nitrogen	11.5-12.8%
Acetaldehydes	0.05%
Lead	0.0005%
Heavy Metals	0.001%
Hydrazine	0.0001%
Peroxides	0.04%
	Meets or exceeds USP specifications
CAS Number	9003-39-8
Molecular Weight	40kD
Important Note	This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.