Nitric acid-<SUP>18</SUP>O<SUB>3</SUB> CAS 724421-39-0

Purity 97%+In StockPharmaceutical Standards
CAS No.724421-39-0
Molecular FormulaHN[18O]3
Molecular Weight69.01 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Nitric acid-<SUP>18</SUP>O<SUB>3</SUB> CAS 724421-39-0 chemical structure

Description

As a certified reference material (CRM), Nitric acid-<SUP>18</SUP>O<SUB>3</SUB> 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-<SUP>18</SUP>O<SUB>3</SUB> (CAS 724421-39-0), molecular formula HN[18O]3 and molecular weight 69.01 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of Nitric acid-<SUP>18</SUP>O<SUB>3</SUB> (HN[18O]3) 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 FormulaHN[18O]3
Molecular Weight69.01 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Freely soluble in water
StabilityLight-sensitive; avoid direct strong light
CAS Registry Year (est.)1986
Nitrogen Atoms1

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