Sodium hydrogen phthalate half-hydrate CAS 57116-34-4

Description

Compared with other compounds in its class, the molecular weight of 207.14 g/mol gives Sodium hydrogen phthalate half-hydrate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Sodium hydrogen phthalate half-hydrate (CAS 57116-34-4) is a high-purity analytical reference standard with the molecular formula C8H6O4NaH2O and a molecular weight of 207.14 g/mol.

Sodium hydrogen phthalate half-hydrate (C8H6O4NaH2O) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 Sodium hydrogen phthalate half-hydrate 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

Why CATO?

• ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
• 130,000+ catalog items in stock, COA supplied with every batch
• Worldwide shipping with full export documentation (HS code guidance available)
• Technical support: +86 18665070610 / Nicole.chen@cato-chem.com