Description

Diaqua[(2S)-2-(Hydroxy-κo)Butanedioato(2-)-κo1]Calcium is a specific calcium salt of L-malic acid, a compound of significant interest in advanced chemical synthesis and pharmaceutical development. This high-purity material is valued for its role as a chiral building block and a source of bioavailable calcium in specialized formulations. It is primarily utilized by research institutions and manufacturers in the pharmaceutical, nutraceutical, and fine chemical sectors seeking precise molecular control. The compound is supplied with full traceability and rigorous quality documentation to support critical applications.

Application

• Pharmaceutical Intermediate: Serves as a key chiral precursor in the synthesis of active pharmaceutical ingredients (APIs) requiring specific stereochemistry.
• Nutraceutical & Dietary Supplement: Used as a source of bioavailable calcium in advanced mineral supplement formulations, often paired with organic acids for enhanced absorption.
• Food Additive & Fortification: Functions as a calcium fortifier and acidity regulator in specialized food and beverage products, leveraging its malate moiety.
• Biochemical Research: Employed as a standard or reagent in enzymatic studies, metabolic pathway research, and calcium-binding experiments.
• Cosmetic Ingredients: Incorporated into skincare formulations for its potential skin-conditioning and buffering properties.
• Catalysis & Ligand Synthesis: Acts as a ligand or precursor for chiral catalysts used in asymmetric synthesis.

Basic Information

Product Name	Diaqua[(2S)-2-(Hydroxy-κo)Butanedioato(2-)-κo1]Calcium
CAS No.	410098-14-5
Molecular Formula	C4H8CaO7 • 2H2O
Molecular Weight	244.21 g/mol (Anhydrous basis: 208.18 g/mol)
Synonyms	Calcium L-Malate Dihydrate; Calcium (S)-(-)-Malate Dihydrate; L-Calcium Malate Dihydrate; (2S)-2-Hydroxybutanedioic Acid Calcium Salt Dihydrate; Calcium Hydrogen (S)-(-)-Malate Dihydrate; Calcium (S)-Hydroxysuccinate Dihydrate; Calcium (L)-Malate Dihydrate; Diaquacalcium (S)-malate
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Each batch is manufactured under a controlled quality management system and is supported by a comprehensive Certificate of Analysis (COA). Specifications are designed to meet the requirements of high-purity applications, with testing for identity, assay, chiral purity, and specific impurities. Certificates of Analysis (COA) are available upon request.

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). This material is hygroscopic (moisture-sensitive) and must be kept in a dry environment to prevent caking or decomposition. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Assay (Anhydrous Basis)	98.0% - 102.0%
Chiral Purity (Enantiomeric Excess)	≥ 99.0%
Water Content (Karl Fischer)	13.0% - 17.0%
Heavy Metals (as Pb)	≤ 10 ppm
Loss on Drying	Contact for details
Residue on Ignition (Sulfated Ash)	Contact for details

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