Description

Dianisoyl-L-Tartaric Anhydride is a high-purity chiral derivatizing agent and resolving reagent. This compound is essential for the separation and analysis of enantiomers in pharmaceutical and fine chemical research. It is primarily used by manufacturers and R&D laboratories requiring precise chiral resolution and asymmetric synthesis capabilities. Its specific reactivity makes it a critical tool for ensuring the stereochemical purity of active pharmaceutical ingredients (APIs).

Application

• Chiral Resolution Agent: For the separation of racemic mixtures of amines, amino alcohols, and other basic pharmaceuticals.
• Analytical Chemistry: As a derivatizing agent in High-Performance Liquid Chromatography (HPLC) and other chromatographic methods for enantiomeric purity determination.
• Asymmetric Synthesis: Employed as a chiral auxiliary or building block in the synthesis of enantiomerically pure compounds.
• Pharmaceutical Intermediate: Used in the research and development of chiral drugs, particularly in the fine-tuning of pharmacokinetic properties.
• Reference Standard: Serves as a high-purity standard for method development and validation in quality control laboratories.
• Chemical Research: Utilized in academic and industrial research exploring new methodologies in stereoselective synthesis.

Basic Information

Product Name	Dianisoyl-L-Tartaric Anhydride
CAS No.	50685-51-3
Molecular Formula	C20H18O9
Molecular Weight	402.35 g/mol
Synonyms	L-Dianisoyltartaric Anhydride; (2R,3R)-2,3-Bis(4-methoxybenzoyloxy)succinic Anhydride; Di-p-anisoyl-L-tartaric Anhydride; DATAN; L-DTTA Anhydride; (2R,3R)-2,3-Bis[(4-methoxyphenyl)carbonyloxy]butanedioic Anhydride; O,O'-Di-p-anisoyl-L-tartaric Anhydride
EINECS	Contact for details

Quality Control

Our Dianisoyl-L-Tartaric Anhydride is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity verification by HPLC, to ensure it meets the stringent requirements for chiral resolution and analytical applications. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming identity, purity, and compliance with agreed specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent decomposition. Keep the container tightly sealed when not in use.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Chiral Purity (HPLC)	≥ 99.0% (L-isomer)
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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