DIFETHIALONE
- CAS NO.：104653-34-1
- Empirical Formula: C31H23BrO2S
- Molecular Weight: 539.48
- MDL number: MFCD01663605
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-09-23 13:47:07
What is DIFETHIALONE?
Description
Difethialone[104653-34-1], 3-[(1RS,3RS; 1RS,3SR)-3- (4 -bromobiphenyl-4-yl)-1,2,3,4-tetrahydro-1-naphthyl]- 4-hydroxy-1-benzothiin-2-one, C31H23BrO2S, MW 539.5, mp 233–236 ?C, is a slightly yellowish powder which is practically insoluble in water, moderately soluble in ethanol, methanol, hexane, acetone, readily soluble in chloroform, dimethylformamide [9, p. 393].
The Uses of DIFETHIALONE
Difethialone is an anticoagulant rodenticide widely used to control rodent infestations.
The Uses of DIFETHIALONE
Pesticide.
Preparation
Difethialone is made by condensation of 4-hydroxy-2H- 1-benzothiapyran-2-one with 3-(4 -bromo-4-biphenyl)-1,2, 3,4-tetrahydro-1-naphthol in acetic acid containing concentrated sulfuric acid (62).
Definition
ChEBI: Difethialone is a member of benzenes, a member of naphthalenes and a ring assembly.
Agricultural Uses
Rodenticide, Pesticide: Introduced in 1986, this second-generation anticoagulant rodenticide (member of the hydroxy-4-benzothiopyranone family) is used to control mice and rats, including those resistant to first-generation anticoagulants. Not approved for use in most EU countries. Approved for use in the U.S.
Trade name
LM-2219®; PROTECTA RAT BAIT STATION®; VETERAN PELLET®; VETERAN WAX BLOCK®
Properties of DIFETHIALONE
| Melting point: | 203-227° |
| Boiling point: | 658.3±55.0 °C(Predicted) |
| Density | 1.3614 g/cm3(Temp: 25 °C) |
| solubility | Chloroform: slightly soluble; Methanol: slightly soluble |
| form | A solid |
| pka | 4.50±1.00(Predicted) |
| EPA Substance Registry System | Difethialone (104653-34-1) |
Safety information for DIFETHIALONE
Computed Descriptors for DIFETHIALONE
New Products
2-(3-Methyl-1,2,4-oxadiazol-5-yl)acetic acid (as potassium salt) 2-fluoro-4-iodoaniline 4-Iodo-3,5-dimethylbenzonitrile Atorvastatin amide impurity/Atorvastatin EP Impurity F(Calcium Salt) Lantanoprost rc B Clidinium Bromide Impurity Noradrenaline EP Impurity D/Noradrenaline Methyl Ether Cetirizine EP Impurity A/Cetirizine CBHP Impurity N-Nitroso hydroxy Cetrizine EP Impurity-A (4-Fluoro-2-methoxy-5-nitro- phenyl)-[4- (1-methyl-1H- indol-3- yl)-pyrimidin-2-yl]- amine 6-bromo-4-fluoro-1-isopropyl-2-methyl-1H-benzo[d]imidazole tert-butyl 4-(6-((7-cyclo pentyl -6-(dimethyl carbamoyl) -7H-pyrrolo [2,3-d]pyrimidin-2-yl) amino)pyridin-3-yl) piperazine-1-carboxylate 2-Fluoro-4-nitrotoluene 1-(2-amino-5-hydroxy phenyl)propan-1-one (3R,4R)-1-benzyl-N,4-dimethylpiperidin-3- amine 3-(Dimethylamino)benzoic acid 2-Amino-5-chloropyridine 4-(Methylamino)-3-nitrobenzoic Acid 5-Chloro-2-Nitroaniline 3,5-dibenzyloxy Acetophenone 2,4-Diamino-6-hydroxypyrimidine 2-Chloro Benzylcyanide 3-chlorobenzyl cyanide 3,4 Diethoxy BenzylcyanideRelated products of tetrahydrofuran
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