Nitric Acid CAS 7697-37-2

Purity 1+12 in WaterIn StockPharmaceutical Standards
CAS No.7697-37-2
Molecular FormulaHNO3
Molecular Weight63.01 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Nitric Acid CAS 7697-37-2 chemical structure

Description

As a certified reference material (CRM), Nitric Acid 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.

Nitric Acid (CAS 7697-37-2) is a high-purity analytical reference standard with the molecular formula HNO3 and a molecular weight of 63.01 g/mol.

The molecular framework of Nitric Acid (HNO3) is characterized by an inorganic composition. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

Physical & Chemical Properties

Molecular FormulaHNO3
Molecular Weight63.01 g/mol
Purity1+12 in Water
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Freely soluble in water
StabilityLight-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
CAS Registry Year (est.)1959
Nitrogen Atoms1

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