Description

Calcium L-Glutamate Dihydrate is a high-purity, crystalline salt of the amino acid L-glutamic acid. This compound serves as a vital source of bioavailable calcium and glutamate, offering superior stability and handling characteristics compared to its anhydrous form. It is essential for manufacturers in the pharmaceutical, nutraceutical, and food industries seeking a reliable, high-quality ingredient for formulations requiring precise mineral and amino acid content. Its dihydrate form provides enhanced physical stability, making it a preferred choice for quality-conscious production.

Application

• Pharmaceutical Excipient & Active Ingredient: Used as a calcium source in solid dosage forms like tablets and capsules, and as a component in electrolyte replenishment solutions.
• Dietary Supplement & Nutraceutical Formulations: A key ingredient in calcium supplements, bone health products, and sports nutrition formulas due to its combined calcium and amino acid profile.
• Food & Beverage Additive (FCC Grade): Functions as a flavor enhancer (umami), nutrient fortifier, and pH buffer in processed foods, soups, sauces, and health beverages.
• Microbiological Culture Media: Provides essential nutrients for the growth of specific microorganisms in industrial fermentation and diagnostic media.
• Biochemical Research & Cell Culture: Used as a defined component in cell culture media and as a reagent in various biochemical and enzymatic studies.
• Cosmetic Applications: Incorporated into skincare formulations for its potential moisturizing and skin-conditioning properties.

Basic Information

Product Name	Calcium L-Glutamate Dihydrate
CAS No.	5996-22-5
Molecular Formula	C10H16CaN2O8 • 2H2O
Molecular Weight	332.30 g/mol (Dihydrate)
Synonyms	Calcium L-Glutamate Hydrate; Calcium Diglutamate Dihydrate; L-Glutamic Acid Calcium Salt Dihydrate; Calcium Hydrogen Glutamate Dihydrate; (S)-2-Aminopentanedioic Acid Calcium Salt Dihydrate; Glutamic Acid, Calcium Salt, Dihydrate; Monocalcium Glutamate Dihydrate; E 623 (when used as a food additive)
EINECS	227-849-3 (for the anhydrous form; consult for hydrate specifics)

Quality Control

Our Calcium L-Glutamate Dihydrate is manufactured under a strict quality management system. Each batch is tested to meet exacting specifications for identity, purity, and heavy metal content. We can supply material compliant with relevant standards such as Food Chemicals Codex (FCC) for food-grade applications. A comprehensive Certificate of Analysis (COA) documenting assay, optical rotation, loss on drying, residue on ignition, and specific impurity limits is provided with every shipment to ensure traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture, which can affect weight and flow properties. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (on dried basis)	98.0% - 102.0%
Specific Rotation [α]20/D	+30.0° to +34.0°
Loss on Drying	10.0% - 12.0%
Residue on Ignition (Sulfated Ash)	19.0% - 21.0%
Heavy Metals (as Pb)	≤ 10 ppm
Arsenic (As)	≤ 3 ppm
pH (5% solution)	6.5 - 7.5
Chloride (Cl)	≤ 0.05%
Sulfate (SO4)	≤ 0.05%

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