Chemicals

1-ethenylpyrrolidin-2-one Cas:25249-54-1

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Synonyms：

1-ethenylpyrrolidin-2-one

Pvpp

Polyvidone

N-Vinylpyrrolidone

Poly(vinylpolypyrrolidone)

2-Pyrrolidinone,1-ethenyl

Polyvinylpyrrolidone

1-Vinyl-2-pyrrolidinone

crospovidone

Povidone

Vinylpyrrolidone

polyvinylpolypyrrolidone

Polyvinylpyrrolidone (PVP-P)

1-Vinyl-2-pyrrolidone

molecular formula: C18H27N3O3

Molecular weight: 333.42500

Physical Properties:

Appearance: powder | White to off-white

Density: 1.1±0.1 g/cm3

Boiling point: 217.6±7.0 °C at 760 mmHg

Melting point: ~165 °C (dec.)(lit.)

Vapor Pressure: 0.1±0.4 mmHg at 25°C

Refractive index: 1.593

Specification:

Test	Specification	Results
Appearance	White or yellowish-white hygroscopic powder	Complies
Identification, ABC	Positive	Complies
Appearance of solution	Solution S is clear coloration = B6,BY6,or R6	Complies
PH (in 5% solution )	3.0-7.0	5.8
Viscosity, as K-value	81.0-97.2	92.6
Lead	=10ppm	Complies
Impurity A,(1-Vinylpyrrolidin-2-one)	W0.1%	0.04%
Water	W5.0%	2.5%
Sulphated ash	M0.1%	0.05%
Assay, as Nitrogen content	11.5-12.8%	12.2%
Microbiological status	Max. 100 aerobic plate count CFU/g	<10
	Max. 100 Mold and Yeast CFU/g	<10
	No Escherichia Coli /g	Complies
	No Pseudomonas aeruginosa /g	Complies
	No Salmonella /10g	Complies
	No staphylococcus aureus /g	Complies

Application:

Polyvinylpolypyrrolidone (polyvinyl polypyrrolidone, PVPP, crospovidone, crospolividone or E1202) is a highly cross-linked modification of polyvinylpyrrolidone (PVP).
The cross-linked form of PVP is used as a disintegrant (see also excipients) in pharmaceutical tablets. PVPP is a highly cross-linked version of PVP, making it insoluble in water, though it still absorbs water and swells very rapidly generating a swelling force. This property makes it useful as a disintegrant in tablets.
PVPP can be used as a drug, taken as a tablet or suspension to absorb compounds (so-called endotoxins) that cause diarrhoea. (Cf. bone char, charcoal.); It is also used as a fining to extract impurities (via agglomeration followed by filtration). It is used in winemaking. Using the same principle it is used to remove polyphenols in beer production and thus clear beers with stable foam are produced. One such commercial product is called Polyclar. PVPP forms bonds similar to peptidic bonds in protein (especially, like proline residues) and that is why it can precipitate tannins the same way as proteins do.
PVPP has E number code E1202 and is used as a stabiliser

Package and Storage:

1kg/bottle or bag

25kgs/drum or bag

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