Description

L(-)-Malic Acid Disodium Salt Monohydrate is the high-purity sodium salt of the naturally occurring L-isomer of malic acid. This compound is valued for its role as a pH regulator, flavor enhancer, and chelating agent in critical formulations. It is essential for manufacturers in the food & beverage, pharmaceutical, and personal care industries seeking consistent, high-quality ingredients for sensitive applications.

Application

• Food & Beverage Industry: Used as an acidity regulator, flavor enhancer, and preservative in beverages, confectionery, and low-sodium food products.
• Pharmaceuticals: Serves as an excipient in tablet formulations, a buffering agent in parenteral solutions, and a component in effervescent preparations.
• Personal Care & Cosmetics: Functions as a pH adjuster and skin conditioning agent in creams, lotions, and cleansers.
• Biochemical Research: Employed as a substrate or buffer component in enzymatic assays and cell culture media.
• Industrial Applications: Acts as a chelating agent in cleaning formulations and metal treatment processes.

Basic Information

Product Name	L(-)-Malic Acid Disodium Salt Monohydrate
CAS No.	64887-73-6
Molecular Formula	C4H4Na2O5 • H2O
Molecular Weight	196.07 g/mol
Synonyms	Disodium L-Malate Monohydrate; L-Malic Acid Disodium Salt Hydrate; Sodium L-Malate Monohydrate; (2S)-2-Hydroxybutanedioic Acid Disodium Salt Monohydrate; Disodium (S)-(-)-Malate Monohydrate; Disodium (2S)-2-Hydroxysuccinate Monohydrate; Butanedioic acid, hydroxy-, disodium salt, (2S)-, monohydrate
EINECS	Contact for details

Quality Control

Our L(-)-Malic Acid Disodium Salt Monohydrate is manufactured under a strict quality management system. Each batch is tested to ensure it meets high-purity standards suitable for food, pharmaceutical, and technical applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and specific tests is 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 container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Specific Rotation [α]20/D	-25° to -30° (c=5 in H2O)
pH (5% solution)	6.5 - 8.5
Loss on Drying	8.0 - 10.0%
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1%

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