Description

Potassium Hydrogen D-Tartrate is the potassium acid salt of D-tartaric acid, a naturally occurring chiral organic compound. This high-purity material is valued for its role as a key chiral intermediate and resolving agent in asymmetric synthesis and pharmaceutical manufacturing. It serves critical functions in the food industry as a pH regulator and sequestrant, and in analytical chemistry as a standard. Industries requiring precise optical purity and consistent quality, such as fine chemicals, pharmaceuticals, and food additives, rely on this compound.

Application

• Pharmaceutical Intermediate: Used as a chiral building block and resolving agent for the synthesis of active pharmaceutical ingredients (APIs).
• Food Additive: Functions as an acidity regulator, stabilizer, and sequestrant (chelating agent) in food and beverage production.
• Analytical Chemistry: Serves as a standard reference material for calibrating instruments and in chiral separation methodologies.
• Fine Chemical Synthesis: Employed in asymmetric synthesis and catalysis to induce or control stereoselectivity.
• Biochemistry & Research: Utilized in buffer solutions and as a substrate or standard in enzymatic and metabolic studies.
• Wine & Beverage Industry: Acts to stabilize tartrate salts and control acidity during production processes.

Basic Information

Product Name	Potassium Hydrogen D-Tartrate
CAS No.	57341-16-9
Molecular Formula	C4H5KO6
Molecular Weight	188.18 g/mol
Synonyms	Potassium Bitartrate (D-form); Cream of Tartar (D-form); Potassium L-(+)-Hydrogen Tartrate; Monopotassium D-Tartrate; Potassium Acid D-Tartrate; E336; 2,3-Dihydroxybutanedioic acid monopotassium salt (2R,3R)-
EINECS	Contact for details

Quality Control

Our Potassium Hydrogen D-Tartrate is manufactured under a rigorous quality management system. Each batch is tested to ensure compliance with relevant specifications for identity, purity, optical rotation, and impurity profiles. We can supply material meeting various grade requirements, including Food Grade (FCC) and high-purity standards for pharmaceutical applications. Certificates of Analysis (COA) documenting all critical parameters are provided with every shipment.

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 product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (Titration)	≥ 99.0%
Specific Rotation [α]20/D	+12.0° to +12.6°
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Chloride (Cl)	≤ 0.01%
Sulfate (SO4)	≤ 0.01%

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