Description

Magnesium Maleate, Dihydrate is a white to off-white crystalline powder that serves as a vital source of bioavailable magnesium and maleic acid. This compound is valued for its role as a functional additive and intermediate in high-purity applications where controlled release and stability are paramount. It is primarily utilized by manufacturers in the pharmaceutical, nutraceutical, and specialty chemical industries seeking a reliable, high-quality magnesium salt for formulation and synthesis.

Application

• Pharmaceutical Excipient & Active Ingredient: Used as a magnesium supplement in tablet and capsule formulations, often for its bioavailability and buffering properties.
• Nutraceutical & Dietary Supplements: Incorporated into mineral supplement blends and functional food products to provide essential magnesium.
• Chemical Synthesis Intermediate: Serves as a key starting material or catalyst in organic synthesis and the production of specialty polymers.
• Food Additive & Fortification Agent: Employed as a nutrient fortifier and pH regulator in select food and beverage applications.
• Cosmetic & Personal Care Formulations: Used in skincare products for its potential skin-conditioning and stabilizing effects.
• Laboratory & Research Reagent: Sourced for analytical testing, biochemical research, and process development.

Basic Information

Product Name	Magnesium Maleate, Dihydrate
CAS No.	869-06-7
Molecular Formula	C4H2MgO4·2H2O
Molecular Weight	170.39 g/mol (Anhydrous basis: 134.36)
Synonyms	Magnesium maleate dihydrate; Maleic acid, magnesium salt, dihydrate; Magnesium (Z)-butenedioate dihydrate; Magnesium cis-butenedioate dihydrate; Magnesium hydrogen maleate dihydrate; Magnesii maleas dihydricus; EINECS 212-779-1
EINECS	212-779-1

Quality Control

Our Magnesium Maleate, Dihydrate is produced under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and composition. Certificates of Analysis (COA) documenting key parameters such as assay, heavy metals, and loss on drying are provided with every shipment. We can support compliance requirements for various standards, including pharmaceutical (USP/EP) and food-grade (FCC) applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept in a dry environment to prevent caking or degradation. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Assay (MgO)	23.0% - 25.5%
Loss on Drying	19.0% - 22.0%
Heavy Metals (as Pb)	≤ 20 ppm
Arsenic (As)	≤ 3 ppm
pH (5% solution)	6.0 - 8.0
Residue on Ignition	28.0% - 32.0%

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