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Description
(+)-Dibenzoyl-D-tartaric Acid Monohydrate, CAS number 80822-15-7, is the monohydrate form of D-configured tartaric acid in which both hydroxyl groups have been esterified with benzoic acid. Commonly abbreviated as DBTA, this compound is one of the most well-established chiral resolving agents in preparative organic chemistry and pharmaceutical chemistry. Its role in the laboratory is to convert racemic mixtures of organic bases into pairs of diastereomeric salts that differ in physical properties, so that one enantiomer can be separated by controlled crystallisation without requiring the far more expensive chiral chromatography columns.
The properties that make this material a preferred choice begin with its two aromatic benzoyl groups, which enrich intermolecular interactions within the crystal lattice, combined with two free carboxylate groups that are ready to form salts with amines. The D configuration delivers selectivity opposite to that of its L counterpart, which is why both forms are often supplied side by side so that researchers can target the enantiomer they actually want. The monohydrate form presents a stable crystalline solid that is easy to weigh out and consistent from batch to batch, and its good solubility in methanol and ethanol supports straightforward preparation of resolution media.
In Indonesian laboratories, this resolving agent is typically used in university research groups, pharmaceutical development units, and analytical or synthetic chemistry facilities that work on single-enantiomer targets. It suits laboratories that need a practical route to enantiopure amines without investing in dedicated chiral separation instrumentation, and the stable crystalline monohydrate form makes it convenient to store, handle, and dispense under ordinary tropical laboratory conditions where reproducible weighing matters.
Laboratory Applications
Classical resolution of racemic amines: the two free carboxylate groups readily form diastereomeric salts with basic nitrogen centres, allowing one enantiomer to be isolated by controlled crystallisation.
Pharmaceutical development of single-enantiomer actives: DBTA is a well-established resolving agent, giving development chemists a documented and reproducible route to enantiopure intermediates without chiral chromatography.
Chiral building block work in asymmetric synthesis: the D configuration supplies defined stereochemical information that can be carried forward into further preparative organic transformations.
Crystallisation method development: the aromatic benzoyl groups strengthen intermolecular interactions in the crystal lattice, which supports the systematic screening and optimisation of solvent and crystallisation conditions.
Cost-effective alternative to chiral chromatography: laboratories separating enantiomers on a preparative scale can use salt formation and crystallisation rather than expensive chiral columns.
Specifications
Brand: TCI (catalogue reference D1398)
CAS number: 80822-15-7
Category: Chemistry > Asymmetric Synthesis > Chiral Building Blocks
Pack sizes: available in the standard TCI catalogue pack sizes; please confirm the size you require when ordering
Physical form: crystalline solid, monohydrate
Storage: keep in a tightly closed container in a cool, dry place
Handling and Storage
Store the material in a tightly closed original container in a cool, dry, well-ventilated area, away from moisture and from incompatible reagents such as strong bases and strong oxidising agents. Because the product is supplied as a monohydrate, containers should be kept properly sealed between uses so that the crystalline solid remains consistent for weighing. Handle the solid in a fume hood or a well-ventilated workspace, and wear standard laboratory personal protective equipment including a lab coat, safety goggles, and chemical-resistant gloves. Avoid generating dust, avoid contact with skin and eyes, and wash hands thoroughly after handling. Always consult the manufacturer's safety data sheet before use and dispose of residues in accordance with applicable laboratory waste procedures.
