Product · Carbomer Homopolymer · PharmaceuticalPharmaceutical Grade

Carbomer AM-974P (Homopolymer Type B, Pharma)

Comparable viscosity profile to industry-standard grades such as Carbopol 974P

Pharmaceutical-grade Carbomers are manufactured under distinct process controls specific to pharmaceutical formulation requirements. Additional pharmaceutical-grade options beyond those listed may be available — contact us with your target application.

CAS: 9007-20-9Grade: Type B (Pharma)Ascend Model: AM-974PFamily Overview

Technical Specifications

Viscosity (Cp, 0.5wt% neutralized gel in water)

25,000 – 45,000

Polymerization solvent

Ethyl acetate / cyclohexane co-solvent, or pure ethyl acetate (benzene-free)

Pharmacopoeia compliance

EP / USP

Process controls

Pharmaceutical-grade process controls — batch documentation for regulatory filings

CAS Number

9007-20-9

Quality Standards

Appearance

White, loose powder

AM-974P: Conforms

pH (1% aqueous dispersion)

2.5 – 3.5

AM-974P: Conforms

Viscosity (0.5% neutralized)

25,000 – 45,000 mPa·s

AM-974P: Conforms

Residual solvent

Ethyl acetate ≤0.5%

AM-974P: Conforms

Residual acrylic acid

0.1%

AM-974P: Conforms

AM-974PReference grade (Carbopol 974P)

AM-974P demonstrates viscosity performance closely aligned with industry-standard reference grades across the neutralization concentration range tested (0.20%–1.00%).

Key Applications

Taste-Masking Agents & Release Retardants

Type B's cohesive crosslinked network suppresses bitterness in oral granules and slows drug release from tablets, supporting extended-release profiles.

Direct-Compression Oral Granules

A key excipient in new direct-compression oral granule formats, contributing binding and controlled hydration during processing.

Gels, Ointments & Creams

Pharmaceutical-grade thickening for topical systems where a fuller gel body and stable emulsion are desired.

Films

Clear, cohesive gel-forming behavior for pharmaceutical film applications requiring a stronger body than Type A.

Carbomer AM-974P (homopolymer Type B, pharmaceutical grade) is the medium-viscosity tier of our pharmaceutical Carbomer range, combining a fuller gel body with the cohesive, sustained-release behavior required in oral solid dosage applications.

Pharmaceutical-grade Carbomers are manufactured under distinct process controls specific to pharmaceutical formulation requirements.

Frequently Asked Questions

What's the primary positioning of AM-974P?
AM-974P is the pharmaceutical-grade homopolymer Type B — the medium-viscosity tier of our pharmaceutical Carbomer range. Its full, cohesive gel body makes it the go-to grade for oral solid dosage work — taste-masking agents and release retardants in tablets and granules — while remaining versatile enough for gels, ointments, creams, and films.
What does "pharmaceutical grade" mean for this product?
Pharmaceutical-grade Carbomers are manufactured under distinct process controls specific to pharmaceutical formulation requirements. This covers tighter specification bands, documented manufacturing controls, and batch-level documentation suitable for regulatory filings.
How is Type B used in oral solid dosage forms?
As a taste-masking agent, Type B binds and coats active ingredients to suppress bitterness in chewable and oral granules. As a release retardant, its crosslinked gel network slows drug release from tablets and granules, supporting extended-release profiles. It is also used in new direct-compression oral granule formats.
Is this grade benzene-free?
Yes. It's manufactured using an ethyl acetate/cyclohexane co-solvent system or pure ethyl acetate as the polymerization solvent, with low solvent residue compliant with current regulatory requirements.
Do you provide certificates of analysis for each batch?
Yes, a batch-specific COA is provided with every shipment, along with ISO certification and MSDS/TDS on request. Regulatory documentation for pharmaceutical filings is available on request.