(−)-O,O′-Dibenzoyl-L-tartaric acid monohydrate
(−)-O,O′-Dibenzoyl-L-tartaric acid monohydrate, CAS 62708-56-9, is a chiral resolving agent with a molecular weight of 376.31 g/mol. This monohydrate form of dibenzoyltartaric acid is essential for asymmetric synthesis, particularly in the separation of enantiomers. It functions as a crucial organic building block and finds application in chemical synthesis for creating enantiomerically pure compounds. Its reliable performance makes it a staple in research and development laboratories.
- Synonyms
- C18H14O8 · H2O

Chiral Resolution
Serves as a highly effective chiral resolving reagent for the separation of enantiomers. It forms diastereomeric salts with racemic mixtures, allowing for the isolation of individual enantiomers.
Asymmetric Synthesis
A valuable chiral building block in asymmetric synthesis, enabling the construction of enantiomerically pure molecules. Its defined stereochemistry is critical for controlling the stereochemical outcome of reactions.
Organic Synthesis Intermediate
Used as an intermediate in complex organic syntheses where chirality is a key requirement. It aids in the preparation of pharmaceuticals and other fine chemicals.
| Molecular weight | 376.31 |
|---|---|
| Empirical formula | C18H14O8 · H2O |
| Assay | ≥99.0% (T) |
| Optical activity | [α]20/D −110±3°, c = 5% in ethanol |
| Melting point | 88-89 °C(lit.) |

Hazard statements
- H319Causes serious eye irritation
Precautionary statements
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is (−)-O,O′-Dibenzoyl-L-tartaric acid monohydrate used for?
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It is primarily used as a chiral resolving agent for separating enantiomers and as a chiral building block in asymmetric synthesis and organic synthesis.
What are the CAS number and formula for this compound?
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The CAS number is 62708-56-9, and the empirical formula is C18H14O8 · H2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical with an assay of ≥99.0% (T). We do not represent it as USP, BP, EP, or pharmacopoeia grade unless explicitly stated in the product data.
What are the safety and handling precautions for this chemical?
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This compound is classified as a Warning with H319 hazard statement, indicating it causes serious eye irritation. Wear suitable personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves. In case of contact with eyes, rinse cautiously with water for several minutes, removing contact lenses if present and easy to do. Continue rinsing.
How is this chemical shipped and exported?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, capable of handling international shipments according to all regulatory requirements.
How can I request a sample or quote?
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Please contact our sales team through the website or by phone to request a sample or a quotation for (−)-O,O′-Dibenzoyl-L-tartaric acid monohydrate.
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