Description

Butanedioic Acid,2,3-Dihydroxy- (2R,3R)-, Ammonium Salt (1:) is the ammonium salt of the naturally occurring (2R,3R)-tartaric acid enantiomer. This compound is valued for its role as a chiral intermediate and pH-adjusting agent in high-purity synthesis. It is essential for manufacturers in the pharmaceutical, fine chemical, and food ingredient sectors requiring precise stereochemistry and consistent quality. Our supply ensures reliable access to this specialized material for critical formulation and research applications.

Application

• As a chiral building block and resolving agent in the synthesis of active pharmaceutical ingredients (APIs).
• Used in the preparation of catalysts and ligands for asymmetric synthesis.
• Acts as a pH buffer and stabilizer in diagnostic reagent formulations.
• Employed as a nutrient source and fermentation aid in microbiological culture media.
• Serves as a tartness control agent and pH regulator in specialty food and beverage applications.
• Utilized in electroplating baths and metal surface treatment solutions.
• Functions as a chelating agent in various chemical processes.

Basic Information

Product Name	Butanedioic Acid,2,3-Dihydroxy- (2R,3R)-, Ammonium Salt (1:)
CAS No.	14307-43-8
Molecular Formula	C4H12N2O6
Molecular Weight	184.15 g/mol
Synonyms	Ammonium L-(+)-Tartrate; L-(+)-Tartaric Acid Ammonium Salt; (2R,3R)-2,3-Dihydroxybutanedioic Acid Ammonium Salt; Ammonium Bitartrate; Ammonium Hydrogen Tartrate; Ammonium Tartrate; EINECS 238-252-7
EINECS	238-252-7

Quality Control

Our Ammonium L-(+)-Tartrate is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets exacting standards for identity, purity, and chiral integrity. Certificates of Analysis (COA) documenting key parameters such as assay, optical rotation, and impurity profiles are available upon request. We can support compliance requirements for various applications, including those following ICH guidelines.

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 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%
Specific Optical Rotation	+28.0° to +30.0° (c=10 in H2O)
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm
pH (5% solution)	6.0 - 7.5

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