AM-971P is manufactured and documented to meet pharmaceutical formulation requirements. Its core strengths are bioadhesion and sustained-release modulation, alongside thickening, rheology modification, and emulsion/suspension stabilization — making it a versatile pharmaceutical excipient across semi-solid, solution, and oral solid dosage forms.
Product · Carbomer Homopolymer · PharmaceuticalPharmaceutical Grade
Carbomer AM-971P (Homopolymer Type A, Pharma)
Comparable viscosity profile to industry-standard grades such as Carbopol 971P
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.
Technical Specifications
| Appearance | White, loose powder |
|---|---|
| pH (1% aqueous dispersion) | 2.5 – 3.5 |
| Viscosity (0.5% neutralized gel) | 4,000 – 11,000 mPa·s |
| Residual solvent | Ethyl acetate ≤0.5% |
| Residual acrylic acid | 0.1% |
| Pharmacopoeia compliance | ChP, USP |
Appearance
White, loose powder
pH (1% aqueous dispersion)
2.5 – 3.5
Viscosity (0.5% neutralized gel)
4,000 – 11,000 mPa·s
Residual solvent
Ethyl acetate ≤0.5%
Residual acrylic acid
0.1%
Pharmacopoeia compliance
ChP, USP
Key Applications
Semi-Solid & Gel Formulations
Thickener and stabilizer in semi-solid and gel formulations requiring both structure and bioadhesive contact.
Solutions & Suspensions
Suspension stabilizer, helping maintain uniform dispersion in liquid pharmaceutical formulations.
Sustained-Release Oral Solid Dosage Forms
Used as a release-modulating excipient in sustained-release tablet and oral solid formulations, where neutralization degree directly influences thickening, release rate, and gel formation.
Frequently Asked Questions
What makes AM-971P suitable for bioadhesive formulations?
AM-971P is characterized by strong bioadhesive and sustained-release modulation properties, making it well suited to formulations that need to adhere to mucosal or skin surfaces while controlling release rate.
How does neutralization degree affect AM-971P's performance?
Neutralization degree is a key factor determining thickening, release behavior, and gel formation — formulators typically adjust this parameter during development to hit their target viscosity and release profile.
Which pharmacopoeia standards does AM-971P comply with?
Manufactured to comply with ChP (Chinese Pharmacopoeia) and USP monograph requirements, with batch documentation available for regulatory filings.
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.
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Other families:AM-971P (Type A · Pharma)AM-974P (Type B · Pharma)AM-1382 (Copolymer · Pharma)AM-980P (Type C · Pharma)AM-U10/U20/U21 (Pharma)