Phosphorochloridic acid, dibutyl ester CAS 819-43-2

Purity 97%+In StockPharmaceutical Standards
CAS No.819-43-2
Molecular FormulaC8H18ClO3P
Molecular Weight228.65 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Phosphorochloridic acid, dibutyl ester CAS 819-43-2 chemical structure

Description

Phosphorochloridic acid, dibutyl ester (C8H18ClO3P) contains a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

Phosphorochloridic acid, dibutyl ester (CAS 819-43-2), molecular formula C8H18ClO3P and molecular weight 228.65 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 FormulaC8H18ClO3P
Molecular Weight228.65 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityHygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)-0.5
CAS Registry Year (est.)1957
Halogen ContentCl-containing

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