Description

Mesotartaric Acid Calcium Salt is the calcium salt derivative of mesotartaric acid, a stereoisomer of tartaric acid. This specialized compound is valued for its role as a chiral auxiliary and resolving agent in asymmetric synthesis and pharmaceutical manufacturing. It serves critical functions in industries requiring precise stereochemical control, such as fine chemical synthesis, pharmaceutical intermediates, and advanced material science.

Application

• Chiral Resolution Agent: Used for the separation of racemic mixtures of acids and amines in pharmaceutical and fine chemical production.
• Pharmaceutical Intermediate: Acts as a key building block in the synthesis of optically active drug compounds and active pharmaceutical ingredients (APIs).
• Catalyst and Ligand Precursor: Employed in the preparation of chiral catalysts for asymmetric hydrogenation and other stereoselective reactions.
• Food Additive (Calcium Source): Can function as a calcium fortifier and sequestrant in specialized food and beverage applications, subject to regulatory approval.
• Analytical Chemistry: Serves as a standard or reagent in chromatographic methods for analyzing chiral compounds.
• Cosmetic Ingredient: Used in formulations requiring specific chelating or buffering properties.

Basic Information

Product Name	Mesotartaric Acid Calcium Salt
CAS No.	815-79-2
Molecular Formula	C4H4CaO6 • xH2O
Molecular Weight	188.15 (Anhydrous)
Synonyms	Calcium Mesotartrate; Calcium (R*,S*)-2,3-Dihydroxybutanedioate; meso-Tartaric Acid Calcium Salt; Calcium (2R,3S)-2,3-Dihydroxysuccinate; Calcium DL-Tartrate (meso-form); Butanedioic acid, 2,3-dihydroxy- (R*,S*)-, calcium salt (1:1); EINECS 212-423-1
EINECS	212-423-1

Quality Control

Our Mesotartaric Acid Calcium Salt is manufactured under a strict quality management system. Each batch is tested to ensure it meets high-purity standards suitable for research and industrial applications. We provide comprehensive Certificates of Analysis (COA) with key parameters including assay, chiral purity, heavy metals, and loss on drying. Specifications can be aligned with customer requirements for pharmaceutical (non-GMP) or technical grades.

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 98.0%
Chiral Purity (HPLC)	≥ 99.0% (meso-form)
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Calcium Content	20.0% - 22.0%
Solubility (in water)	Slightly soluble

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