Magnesium Citrate, Anhydrous, USP

Catalog Number: ASC-1065

Overview

Magnesium Citrate, Anhydrous, USP is a high-purity, pharmaceutical-grade compound widely utilized in the pharmaceutical, nutraceutical, and food industries. This anhydrous form ensures minimal moisture content, making it suitable for applications requiring precise magnesium supplementation and formulation stability.

Chemical Identity

Chemical Name: Magnesium Citrate, Anhydrous
Synonyms: Trimagnesium Citrate Anhydrous, Magnesium Citrate Tribasic Anhydrous
CAS Number: 3344-18-1
Molecular Formula: C₁₂H₁₀Mg₃O₁₄
Molar Mass: 451.11

Specifications

Appearance: White to off-white granular powder
Assay (Magnesium Content): 14.5% – 16.4% (on dried basis)
pH (5% suspension): 5.0 – 9.0
Loss on Drying: ≤ 2.0%
Chloride: ≤ 0.05%
Sulfate: ≤ 0.2%
Calcium: ≤ 0.15%
Iron: ≤ 100 ppm
Heavy Metals: ≤ 10 ppm
Arsenic: ≤ 3 ppm
Lead: ≤ 0.5 ppm
Mercury: ≤ 1 ppm
Microbial Limits:
- Aerobic Plate Count: ≤ 1,000 cfu/g
- Yeast and Mold Count: ≤ 100 cfu/g
- Total Coliforms: Negative

Applications

Pharmaceuticals: Used as a saline laxative and magnesium supplement.
Nutraceuticals: Incorporated into dietary supplements for magnesium fortification.
Food Industry: Serves as a firming agent and acidity regulator.
Laboratory Use: Employed in analytical chemistry and research

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