Description

Citric Acid, Anhydrous USP

Citric Acid, Anhydrous USP is a high-purity, naturally derived organic acid widely used in pharmaceutical, nutraceutical, food, and cosmetic formulations as an acidulant, pH adjuster, chelating agent, and stabilizer. Compliant with United States Pharmacopeia (USP) standards, it provides excellent solubility, consistent performance, and strong buffering capacity across diverse applications.
Citric Acid, Anhydrous appears as a white, crystalline powder with a tart, acidic taste. It is freely soluble in water and alcohol, making it easy to incorporate into liquid and solid dosage forms. Its anhydrous grade offers improved stability and reduced moisture content compared to monohydrate forms.
In pharmaceutical, nutritional, food, and cosmetic formulations, Citric Acid, Anhydrous USP is used in:
• Effervescent tablets and powders requiring controlled acid–base reactions
• Oral solutions, syrups, and injectables as a pH adjuster or stabilizing agent
• Chelation of metal ions to improve stability of active ingredients
• Preservative systems to enhance antimicrobial effectiveness
• Buffering systems for ophthalmic, pediatric, and oral dosage forms
• Flavored beverages, nutritional supplements, and fortified consumer products
Citric Acid, Anhydrous USP enhances formulation stability by binding metal ions that may catalyze degradation. It also contributes to optimal pH for taste, solubility, and bioavailability of active ingredients. Its versatility makes it one of the most widely used excipients in modern formulation science.
CarboMer supplies Citric Acid, Anhydrous USP with control over assay, purity, optical clarity, residual solvents, and microbial quality. The material meets USP monograph specifications and is suitable for regulated pharmaceutical, food, and cosmetic manufacturing.
The material is packaged in sealed, moisture-resistant, tamper-evident containers. Available in laboratory, pilot, and industrial-scale quantities. Documentation includes Certificate of Analysis (CoA), Safety Data Sheet (SDS), and full traceability.
Each batch is tested for identity (IR), assay, moisture content, heavy metals, sulfate and oxalate impurities, and microbial limits. CarboMer provides formulation support to ensure optimal performance in both solid and liquid systems.
As with all CarboMer excipients and acidulants, Citric Acid, Anhydrous USP is backed by reliable global supply, stringent quality control, and expert technical assistance to ensure safe, effective, and high-performance product development.