Nessler’s reagent CAS 7783-33-7

Purity 97%+In StockPharmaceutical Standards
CAS No.7783-33-7
Molecular FormulaHgI4
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Nessler’s reagent CAS 7783-33-7 chemical structure

Description

Owing to a salt form, iodine substitution, Nessler’s reagent is typically white to off-white amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 747.29 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.

Nessler’s reagent (CAS 7783-33-7), molecular formula HgI4K and molecular weight 747.29 g/mol, is a CATO reference standard with documented purity and traceability.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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

Molecular FormulaHgI4 2*K
Molecular Weight747.29 g/mol
Purity97%+
StorageStore at room temperature
Solubility (reference)Freely soluble in water
StabilityStable under recommended storage conditions
CAS Registry Year (est.)1959
Halogen ContentI-containing

Recommended Standards

Why CATO?