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2743-38-6 Usage


Dibenzoyl-L-tartaric acid is a white to light yellow crystalline powder, which is a derivative of tartaric acid with two benzoyl groups attached. It is an important chiral compound used in various chemical and pharmaceutical applications.


Used in Pharmaceutical Industry:
Dibenzoyl-L-tartaric acid is used as a reagent for the production of chiral salts, which are essential in the synthesis of various pharmaceutical compounds. These chiral salts play a crucial role in the development of enantiomerically pure drugs, ensuring the desired therapeutic effects and minimizing potential side effects.
Used in Organic Chemistry:
Dibenzoyl-L-tartaric acid serves as an organic chemical synthesis intermediate, contributing to the formation of complex organic molecules with specific stereochemistry. Its unique structure allows for the creation of a wide range of compounds with potential applications in various industries, including pharmaceuticals, agrochemicals, and materials science.

Flammability and Explosibility


Safety Profile

Dibenzoyl-L-tartaric acid is an eye irritant. When heated to decomposition it emits acrid smoke and irritating fumes.

Check Digit Verification of cas no

The CAS Registry Mumber 2743-38-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,7,4 and 3 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 2743-38:
86 % 10 = 6
So 2743-38-6 is a valid CAS Registry Number.

2743-38-6 Well-known Company Product Price

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  • (Code)Product description
  • CAS number
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  • Detail
  • TCI America

  • (D3492)  (-)-Dibenzoyl-L-tartaric Acid  >98.0%(HPLC)(T)

  • 2743-38-6

  • 25g

  • 250.00CNY

  • Detail
  • TCI America

  • (D3492)  (-)-Dibenzoyl-L-tartaric Acid  >98.0%(HPLC)(T)

  • 2743-38-6

  • 250g

  • 1,250.00CNY

  • Detail
  • Alfa Aesar

  • (A16181)  (-)-Dibenzoyl-L-tartaric acid, anhydrous, 99%   

  • 2743-38-6

  • 25g

  • 341.0CNY

  • Detail
  • Alfa Aesar

  • (A16181)  (-)-Dibenzoyl-L-tartaric acid, anhydrous, 99%   

  • 2743-38-6

  • 100g

  • 771.0CNY

  • Detail
  • Alfa Aesar

  • (A16181)  (-)-Dibenzoyl-L-tartaric acid, anhydrous, 99%   

  • 2743-38-6

  • 500g

  • 986.0CNY

  • Detail
  • Aldrich

  • (345849)    98%

  • 2743-38-6

  • 345849-25G

  • 263.25CNY

  • Detail
  • Aldrich

  • (345849)    98%

  • 2743-38-6

  • 345849-100G

  • 636.48CNY

  • Detail



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017


1.1 GHS Product identifier

Product name 2,3-Bis(benzoyloxy)-butanedioic acid, [R-(R*,R*)]-

1.2 Other means of identification

Product number -
Other names (-)-Dibenzoyl-L-tartaric Acid

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:2743-38-6 SDS

2743-38-6Relevant articles and documents



, p. 2605 (1933)


A L - dibenzoyl tartaric acid for the preparation of dimethyl


, (2019/03/23)

The invention belongs to the technical field of chemical synthesis method, in particular to a L - dibenzoyl tartaric acid for the preparation of dimethyl, the L - dibenzoyl tartaric acid for the preparation of dimethyl, comprises the following steps: S1, to L - tartaric acid, benzoyl chloride, thionyl chloride as the raw material, Lewis acid as catalyst, toluene as the solvent, through esterification, Anhydrized reaction, purification L - dibenzoyl tartaric acid [...]; S2, will be L - dibenzoyl tartaric acid [...] in pure water in the hydrolysis to obtain L - dibenzoyl tartaric acid hydrate wet product; S3, L - dibenzoyl tartaric acid hydrate the wet product in methanol and catalyst under the action of the esterification reaction, purify to get the L - dibenzoyl tartaric acid dimethyl ester. The invention the raw materials used are cheap and easy to obtain, mild reaction conditions, to recycle the methanol can be used repeatedly, after treatment is convenient, and is suitable for industrial production, it is worth.

New chiral zwitterionic phosphorus heterocycles: Synthesis, structure, properties and application as chiral solvating agents

Sheshenev, Andrey E.,Boltukhina, Ekaterina V.,Grishina, Anastasiya A.,Cisa?ova, Ivana,Lyapkalo, Ilya M.,Hii, King Kuok

, p. 8136 - 8143 (2013/07/27)

A family of new chiral zwitterionic phosphorus-containing heterocycles (zPHC) have been derived from methylene-bridged bis(imidazolines). These structures were unambiguously determined, including single-crystal XRD analysis for two compounds. The stability, acid/base and electronic properties of these dipolar phosphorus heterocycles were subsequently investigated. zPHCs can be successfully employed as a new class of chiral solvating agents for the enantiodifferentiation of chiral carboxylic and sulfonic acids by NMR spectroscopy. The stoichiometry and binding constants for the donor-acceptor complexes formed were established by NMR titration methods. A convenient synthetic approach to a new class of chiral zwitterionic phosphorus-containing heterocycles starting from methylene-bridged bis(imidazolines) was designed and executed. Stability and properties of the synthesized compounds were investigated. The applicability of the designed compounds as chiral solvating agents for the determination of the enantiomeric excesses of chiral acids was demonstrated. Copyright

Tartaric acid and its acyl derivatives. Part 5. Direct synthesis of monoacyltartaric acids and novel mono(benzoyl)tartaric anhydride: Unusual findings in tartaric acid acylation

Bernas, Urszula,Hajmowicz, Halina,Madura, Izabela D.,Majcher, Monika,Synoradzki, Ludwik,Zawada, Krzysztof

scheme or table, p. 1 - 12 (2010/12/24)

Practical acylation of unprotected tartaric acid 1 by acyl chlorides to the corresponding monoacyltartaric acids 2 has been shown. Several unusual cases in the acylation of 1 are observed; it has been found that two routes of acylation are possible. In the benzoylation of 1, in addition to the expected products, the formation of a previously undescribed monobenzoyltartaric anhydride 7a is reported. An unusual DME cleavage during the course of acylation was also observed. ARKAT USA, Inc.

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