Description

Tri-Magnesium Dicitrate Nonahydrate is a high-purity, hydrated magnesium salt of citric acid, offering a bioavailable and well-tolerated source of magnesium. This compound is valued for its excellent stability and solubility profile, making it a preferred mineral fortifier and functional ingredient. It is essential for manufacturers in the pharmaceutical, nutraceutical, and food industries seeking a reliable magnesium source for dietary supplements, functional foods, and specialized chemical synthesis.

Application

• Dietary Supplements & Nutraceuticals: As a key active ingredient in magnesium capsules, tablets, and powder formulations to support bone health, muscle function, and electrolyte balance.
• Food & Beverage Fortification: Used as a nutritional additive in cereals, dairy alternatives, sports drinks, and functional beverages to enhance magnesium content.
• Pharmaceutical Preparations: Employed in the formulation of antacids, laxatives, and magnesium-replacement therapies due to its good bioavailability and mild nature.
• Technical & Industrial Applications: Serves as a catalyst or buffering agent in specific chemical processes and as a starting material for other magnesium compounds.
• Cosmetic & Personal Care: Incorporated into skincare products for its potential skin-soothing and stabilizing properties.

Basic Information

Product Name	Tri-Magnesium Dicitrate Nonahydrate
CAS No.	153531-96-5
Molecular Formula	C12H10Mg3O14 • 9H2O
Molecular Weight	703.33 g/mol (Anhydrous: 451.11 g/mol)
Synonyms	Magnesium Citrate Tribasic Nonahydrate; Trimagnesium Dicitrate Nonahydrate; Citric Acid, Trimagnesium Salt, Nonahydrate; Magnesium Citrate (3:2) Nonahydrate; E345; INS 345; Trimagnesium 2-hydroxypropane-1,2,3-tricarboxylate nonahydrate
EINECS	Contact for details

Quality Control

Our Tri-Magnesium Dicitrate Nonahydrate is manufactured under strict quality management systems. We offer grades suitable for food, nutraceutical, and pharmaceutical applications, with quality parameters aligned with standards such as FCC (Food Chemicals Codex) and USP (United States Pharmacopeia). Every batch undergoes rigorous analytical testing to ensure identity, purity, and safety. Certificates of Analysis (COA) documenting all critical specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); the original container must be kept tightly sealed after use to prevent absorption of atmospheric moisture, which can lead to caking or degradation.

Specification

Item	Specification
Appearance	White or almost white crystalline powder
Identification (IR)	Conforms
Assay (MgO)	15.0% - 17.0%
Water (Karl Fischer)	20.0% - 24.0%
Heavy Metals (as Pb)	≤ 10 ppm
Lead (Pb)	≤ 2 ppm
Arsenic (As)	≤ 3 ppm
Loss on Drying	Contact for details
Microbiological Criteria	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.