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
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
Parameter
Specification
AM-974P
Appearance
White, loose powder
Conforms
pH (1% aqueous dispersion)
2.5 – 3.5
Conforms
Viscosity (0.5% neutralized)
25,000 – 45,000 mPa·s
Conforms
Residual solvent
Ethyl acetate ≤0.5%
Conforms
Residual acrylic acid
0.1%
Conforms
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.
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.