(+)-Diethyl L-tartrate
(+)-Diethyl L-tartrate (CAS: 87-91-2), with the molecular formula [-CH(OH)CO2C2H5]2 and a molecular weight of 206.19 g/mol, is a vital chiral building block. This ester, derived from L-tartaric acid, plays a crucial role in asymmetric synthesis. Its enantiomerically pure nature makes it indispensable for the stereoselective synthesis of complex organic molecules, particularly in pharmaceuticals and fine chemicals.
- IUPAC
- L-(+)-Tartaric acid diethyl ester
![(+)-Diethyl L-tartrate ([-CH(OH)CO2C2H5]2) — chemical structure, CAS 87-91-2; Chemistry, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F87-91-2.png&w=3840&q=75)
Chiral Auxiliary in Asymmetric Synthesis
(+)-Diethyl L-tartrate is frequently employed as a chiral auxiliary or a precursor to chiral ligands in various asymmetric transformations. It enables the control of stereochemistry during the formation of new chiral centres.
Precursor for Chiral Ligands and Catalysts
This compound serves as a key starting material for synthesising a range of chiral ligands and catalysts, such as those used in asymmetric epoxidation (e.g., Sharpless epoxidation) and dihydroxylation reactions.
Building Block for Organic Synthesis
Its defined stereochemistry makes it a valuable component in the synthesis of complex chiral molecules. It is used to introduce specific stereocentres in target molecules, particularly in the pharmaceutical and agrochemical industries.
| Molecular weight | 206.19 |
|---|---|
| Linear formula | [-CH(OH)CO2C2H5]2 |
| Assay | ≥99% |
| Grade | puriss. |
| Boiling point | 280 °C(lit.) |
| Density | 1.204 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.446(lit.) |
| Optical activity | [α]20/D +8.5°, neat |
| Optical purity | ee: ≥99% (GLC) |
| Protective equipment | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 93 °C / 199.4 °F |
| Transport (UN / ADR) | UN 1993 / PGIII |
| Water hazard class (WGK, DE) | 3 |
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 (+)-Diethyl L-tartrate used for?
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(+)-Diethyl L-tartrate is primarily used in asymmetric synthesis as a chiral building block, a chiral auxiliary, and a precursor for synthesising chiral ligands and catalysts for stereoselective reactions.
What are the CAS number and formula for (+)-Diethyl L-tartrate?
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The CAS number for (+)-Diethyl L-tartrate is 87-91-2, and its molecular formula is [-CH(OH)CO2C2H5]2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies (+)-Diethyl L-tartrate in a 'puriss.' grade with an assay of ≥99% and an optical purity of ee: ≥99% (GLC).
How should (+)-Diethyl L-tartrate be handled safely?
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Handling requires appropriate personal protective equipment including eyeshields and gloves. Ensure adequate ventilation and use a suitable respirator cartridge. Refer to the Safety Data Sheet for full handling and hazard information, noting it is combustible with a flash point of 93 °C.
How is (+)-Diethyl L-tartrate packed and shipped?
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(+)-Diethyl L-tartrate is packed according to industry standards for fine chemicals and is exported globally by Tech Serve Solutions. It is classified under UN 1993 / PGIII.
How can I request a sample or quote for (+)-Diethyl L-tartrate?
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To request a sample or a quote, please contact our sales team through the website or by phone, providing your specific requirements.
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