Description

Butanedioic Acid, Hydroxy-, Sodium Salt, (2S)- CAS NO 63441-17-8 is the sodium salt of L-malic acid, a high-purity chiral compound essential for applications requiring specific stereochemistry. This product is valued for its role as a pH adjuster, flavor enhancer, and key intermediate in fine chemical synthesis. It is primarily needed by manufacturers in the food & beverage, pharmaceutical, and personal care industries seeking reliable, high-quality ingredients.

Application

• Food & Beverage Additive: Used as an acidity regulator and flavor enhancer in beverages, confectionery, and low-sodium food products.
• Pharmaceutical Intermediate: Serves as a chiral building block in the synthesis of active pharmaceutical ingredients (APIs) and as an excipient in tablet formulations.
• Personal Care & Cosmetics: Functions as a pH adjuster and skin-conditioning agent in creams, lotions, and cleansers.
• Biochemical Research: Employed as a standard or reagent in enzymatic studies and metabolic pathway analysis.
• Industrial Chelating Agent: Acts as a mild chelator in various chemical processes and cleaning formulations.

Basic Information

Product Name	Butanedioic Acid, Hydroxy-, Sodium Salt, (2S)-
CAS No.	63441-17-8
Molecular Formula	C4H5NaO5
Molecular Weight	156.07 g/mol
Synonyms	Sodium L-Malate; L-Malic Acid Sodium Salt; (2S)-2-Hydroxybutanedioic Acid Sodium Salt; Monosodium L-Malate; Sodium (S)-Hydroxysuccinate; Malic Acid Sodium Salt (L-Form); E350; 2-Hydroxysuccinic Acid Sodium Salt
EINECS	Contact for details

Quality Control

Our Butanedioic Acid, Hydroxy-, Sodium Salt, (2S)- is produced under a strict quality management system. Each batch undergoes rigorous testing to ensure it meets specifications for identity, purity, and chiral purity, aligning with standards such as FCC for food-grade applications. A comprehensive Certificate of Analysis (COA) is available for every shipment to guarantee traceability and compliance.

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); the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which can lead to caking or degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Optical Rotation [α]D20	-22.0° to -25.0° (c=5 in H2O)
pH (5% solution)	6.5 - 8.0
Loss on Drying	≤ 1.0%
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.