7U320R238A 7774-41-6 Arsenic acid hemihydrate Arsenic acid, hemihydrate Orthoarsenic acid hemihydrate UNII-7U320R238A CAS 7774-41-6

Description

Compared with other compounds in its class, the molecular weight of 159.96 g/mol gives 7U320R238A 7774-41-6 Arsenic acid hemihydrate Arsenic acid, hemihydrate Orthoarsenic acid hemihydrate UNII-7U320R238A distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

7U320R238A 7774-41-6 Arsenic acid hemihydrate Arsenic acid, hemihydrate Orthoarsenic acid hemihydrate UNII-7U320R238A (CAS 7774-41-6), molecular formula H3AsO4H2O and molecular weight 159.96 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 7U320R238A 7774-41-6 Arsenic acid hemihydrate Arsenic acid, hemihydrate Orthoarsenic acid hemihydrate UNII-7U320R238A (H3AsO4H2O) contains an inorganic composition. The molecule exhibits a degree of unsaturation (DBE) of 0, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 159.96 g/mol, it falls into the medium-molecular-weight range.

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.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

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