Malic Acid Impurity 15 CAS 4198-33-8

Purity 97%+In StockPharmaceutical Standards
CAS No.4198-33-8
Molecular FormulaC4H5ClO4
Molecular Weight152.53 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Malic Acid Impurity 15 CAS 4198-33-8 chemical structure

Description

The occurrence of Malic Acid Impurity 15 is closely related to a carbohydrate-derived structure, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Malic Acid Impurity 15 (CAS 4198-33-8), molecular formula C4H5ClO4 and molecular weight 152.53 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a carbohydrate-derived structure, chlorine substitution, Malic Acid Impurity 15 is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 152.53 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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.

As a certified reference material (CRM), Malic Acid Impurity 15 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC4H5ClO4
Molecular Weight152.53 g/mol
Purity97%+
StorageStore at 2-8°C, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityHygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1958
Halogen ContentCl-containing

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Why CATO?