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Diphacinone,sodium salt

CAS No.
42721-99-3
Chemical Name:
Diphacinone,sodium salt
Synonyms
sosium diphacinone;Diphacinone Sodium;Diphenadione SodiuM;Diphacinone,sodium salt;2-(2,2-diphenylacetyl)inden-2-ide-1,3-dione;2-Diphenylacetyl-1,3-indandione, sodium salt;2-(diphenylacetyl)-1H-indene-1,3(2H)-dione, monosodium salt;2-(2,2-diphenylacetyl)-1h-indene-1,3(2h)-dione ion(1-) sodium salt;2-(2,2-Diphenylacetyl)-1H-indene-1,3(2H)-dione ion(1-) sodium salt (1:1)
CBNumber:
CB3875317
Molecular Formula:
C23H15NaO3
Molecular Weight:
362.36
MDL Number:
MOL File:
42721-99-3.mol
Last updated:2026-07-31 15:25:14

Diphacinone,sodium salt Properties

FDA UNII 3P3GDA5QJC
EPA Substance Registry System Diphacinone sodium salt (42721-99-3)

SAFETY

Risk and Safety Statements

TSCA  TSCA listed

Diphacinone,sodium salt Chemical Properties, Uses, Production

Production Methods

Diphacinone sodium was produced commercially by first synthesising the parent anticoagulant diphacinone, then converting it into its more water-soluble sodium salt. Industrial manufacture of diphacinone itself followed the classical coumarin-type rodenticide route: building the indandione framework through condensation of appropriately substituted benzyl and diketone precursors, followed by cyclisation and purification to remove tarry by-products typical of indandione chemistry. Once technical-grade diphacinone was obtained, producers neutralised its weakly acidic enolic hydroxyl group with sodium hydroxide or sodium carbonate in aqueous or hydroalcoholic media, carefully controlling temperature to avoid degradation of the sensitive indandione core.

Mechanism of action

Anti-coagulant with longer activity than warfarin

Pesticide Type

Rodenticide

Diphacinone,sodium salt Preparation Products And Raw materials

Raw materials

Preparation Products

2-Diphenylacetyl-1,3-indandione, sodium salt Diphacinone Sodium Diphacinone,sodium salt 2-(diphenylacetyl)-1H-indene-1,3(2H)-dione, monosodium salt sosium diphacinone 2-(2,2-Diphenylacetyl)-1H-indene-1,3(2H)-dione ion(1-) sodium salt (1:1) Diphenadione SodiuM 2-(2,2-diphenylacetyl)inden-2-ide-1,3-dione 2-(2,2-diphenylacetyl)-1h-indene-1,3(2h)-dione ion(1-) sodium salt 42721-99-3 C23H15O3Na C23H15NaO3 INSECTICIDE