Description

Dl-Tartaric Acid CAS NO 138508-61-9 is the racemic mixture of the naturally occurring chiral organic acid, offering a versatile and cost-effective alternative to its optically active isomers. This compound is a critical chiral building block and resolving agent in fine chemical synthesis, valued for its ability to form diastereomeric salts. It serves a wide range of industries, including pharmaceuticals, food and beverage, cosmetics, and industrial chemical manufacturing, where it functions as an acidulant, chelating agent, and key intermediate.

Application

• Pharmaceutical Intermediate: A key starting material and resolving agent in the synthesis of chiral active pharmaceutical ingredients (APIs).
• Food & Beverage Additive: Used as an acidulant, flavor enhancer, and sequestrant in beverages, confectionery, and baking powders.
• Chemical Synthesis: Acts as a chiral auxiliary and catalyst in asymmetric synthesis and as a precursor for esters and salts.
• Cosmetics & Personal Care: Functions as a pH adjuster and antioxidant in creams, lotions, and other formulations.
• Metal Cleaning & Polishing: Employed in metal surface treatment and electroplating solutions due to its chelating properties.
• Laboratory Reagent: Utilized in analytical chemistry and biochemical research as a buffer component and standard.

Basic Information

Product Name	Dl-Tartaric Acid
CAS No.	138508-61-9
Molecular Formula	C4H6O6
Molecular Weight	150.09 g/mol
Synonyms	Racemic Tartaric Acid; (±)-Tartaric Acid; DL-2,3-Dihydroxybutanedioic Acid; uvic acid; Paratartaric Acid; Resolvable Tartaric Acid; 2,3-Dihydroxysuccinic Acid
EINECS	Contact for details

Quality Control

Our Dl-Tartaric Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets the required specifications for purity, identity, and safety. We can supply material compliant with various pharmacopeial standards (e.g., USP, EP, BP) or food-grade specifications (FCC) upon request. A comprehensive Certificate of Analysis (COA) documenting all test results is 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); ensure the container is 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]	0.0° ± 0.2°
Loss on Drying	≤ 0.5%
Sulfated Ash	≤ 0.1%
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.