L-(-)-Malic Acid CAS 97-67-6

Purity >95%In StockPharmaceutical Standards
CAS No.97-67-6
Molecular FormulaC4H6O5
Molecular Weight134.09 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

L-(-)-Malic Acid CAS 97-67-6 chemical structure

Description

L-(-)-Malic Acid (CAS 97-67-6) is a high-purity analytical reference standard with the molecular formula C4H6O5 and a molecular weight of 134.09 g/mol.

The molecular framework of L-(-)-Malic Acid (C4H6O5) is characterized by a carbohydrate-derived structure. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

CATO manufactures L-(-)-Malic Acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC4H6O5
Molecular Weight134.09 g/mol
Purity>95%
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1957

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