What is Povidone CAS 9003-39-8?

Povidone, also called polyvinylpyrrolidone or PVP, is a non-ionic water-soluble synthetic polymer made from N-vinyl-2-pyrrolidone. CAS 9003-39-8 identifies the polymer, with general formula (C6H9NO)n, and it is supplied mainly as a white to yellowish-white hygroscopic powder.

What does the K-value of Povidone K30 indicate?

K-value is related to the polymer's average molecular weight and solution viscosity. A K30 grade, typically with K-value 27.0-32.0, represents a medium molecular weight product suited to standard wet granulation, direct compression, film coating, and solubility enhancement applications.

Why does Povidone require tightly closed storage?

Povidone is highly hygroscopic and readily absorbs moisture, which can cause powder caking and affect handling or formulation consistency. It should be kept in tightly sealed containers in a cool, dry, well-ventilated area, with normal dust-control measures used during handling.

Povidone (PVP) CAS 9003-39-8

Povidone, also called polyvinylpyrrolidone or PVP, CAS 9003-39-8, is a non-ionic water-soluble synthetic polymer supplied mainly as a white to yellowish-white hygroscopic powder for pharmaceutical and personal-care uses. Confirm the required grade and specification, then request a quotation with COA/TDS/SDS for bulk supply.

CAS: 9003-39-8
Synonyms: Polyvinylpyrrolidone, PVP resin, Polyvidone, Povidonum, Poly(1-vinyl-2-pyrrolidone)
Einecs: 618-363-4
Molecular Formula: (C₆H₉NO)ₙ
Grade: Pharmaceutical Grade / Industrial Grade
Package: 25kg/drum (Fiber drum with double PE inner liners)

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Product Description

Povidone (PVP) CAS 9003-39-8 is a non-ionic water-soluble synthetic polymer made from N-vinyl-2-pyrrolidone, with the repeat-unit formula (C₆H₉NO)ₙ and EINECS 618-363-4.

Synonyms: Polyvinylpyrrolidone; PVP resin; Polyvidone; Povidonum; Poly(1-vinyl-2-pyrrolidone).

CAS: 9003-39-8.

Molecular formula: (C₆H₉NO)ₙ.

It is supplied mainly as a white to yellowish-white hygroscopic powder.

The K-value is related to the average molecular weight and solution viscosity; a K30 grade typically has K-value 27.0-32.0.

In pharmaceutical formulations it is used as a tablet and capsule binder, film former, stabilizer and dissolution enhancer for poorly water-soluble actives.

It is also used in personal-care products as a film former and viscosity agent, and in industrial systems as a dispersant or steric stabilizer.

It is freely soluble in water, ethanol and chloroform, and practically insoluble in ether.

The typical moisture content is not more than 5.0%, with a pH of about 3.0-7.0 for a 5% aqueous solution.

The residue on ignition is not more than 0.1%, with heavy metals not more than 10 ppm.

Residual N-vinylpyrrolidone monomer is not more than 0.001% (10 ppm).

Store in tightly sealed containers in a cool, dry, well-ventilated area to prevent moisture absorption and caking.

Protect from moisture and contamination, and keep containers tightly closed when not in use.

Confirm appearance, K-value, pH, moisture, residue on ignition, heavy metals, residual monomer and grade as required.

Use suitable eye and skin protection during handling, and wash skin contact with soap and water.

Confirm packaging with the requested quantity and destination requirements.

The page is an RFQ entry point and does not state stock, price, MOQ or fixed lead time.

For an RFQ, state the intended application, required grade, quantity, packaging, destination and document needs.

FAQ - Technical & Supply Chain

Q:
What is Povidone CAS 9003-39-8?

A: Povidone, also called polyvinylpyrrolidone or PVP, is a non-ionic water-soluble synthetic polymer made from N-vinyl-2-pyrrolidone. CAS 9003-39-8 identifies the polymer, with general formula (C6H9NO)n, and it is supplied mainly as a white to yellowish-white hygroscopic powder.
Q:
What does the K-value of Povidone K30 indicate?

A: K-value is related to the polymer's average molecular weight and solution viscosity. A K30 grade, typically with K-value 27.0-32.0, represents a medium molecular weight product suited to standard wet granulation, direct compression, film coating, and solubility enhancement applications.
Q:
Which applications commonly use Povidone CAS 9003-39-8?

A: In pharmaceutical formulations it is used as a tablet and capsule binder, film former, stabilizer, and dissolution enhancer for poorly water-soluble actives. It is also used in personal-care products as a film former and viscosity agent, and in industrial systems as a dispersant or steric stabilizer.
Q:
Why does Povidone require tightly closed storage?

A: Povidone is highly hygroscopic and readily absorbs moisture, which can cause powder caking and affect handling or formulation consistency. It should be kept in tightly sealed containers in a cool, dry, well-ventilated area, with normal dust-control measures used during handling.

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