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Difethialone

HCID 91771
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Basic information

CAS
104653-34-1
Standard SMILES
O=c1c(C2CC(c3ccc(-c4ccc(Br)cc4)cc3)Cc3ccccc32)c(O)sc2ccccc12
InChIKey
JHELOZJAKXYVBE-UHFFFAOYSA-N
Molecular formula
C31H23BrO2S
Average molar mass
539.5 g/mol
Monoisotopic mass
538.06021

Overview

Difethialone is a member of benzenes, a member of naphthalenes and a ring assembly.

Names & identifiers

Preferred name
Difethialone
IUPAC
3-[3-[4-(4-bromophenyl)phenyl]-1,2,3,4-tetrahydronaphthalen-1-yl]-2-hydroxythiochromen-4-one
English name
DIFETHIALONE
Molecular formula
C31H23BrO2S
Molecular weight
539.48

Names & synonyms

Difethialone104653-34-1DifethiaroDTXSID4032374Baraki;LM 22193-[3-[4-(4-bromophenyl)phenyl]-1,2,3,4-tetrahydronaphthalen-1-yl]-2-hydroxythiochromen-4-one3-(3-(4'-Bromo(1,1'-biphenyl)-4-yl)-1,2,3,4-tetrahydro-1-naphthalenyl)-4-hydroxy-2H-1-benzothiapyran-2-one3-[3-(4'-Bromo[1,1'-biphenyl]-4-yl)-1,2,3,4-tetrahydro-1-naphthalenyl]-4-hydroxy-2H-1-benzothiopyran-2-oneDifethialone [ISO]3-(3-(4'-bromo-[1,1'-biphenyl]-4-yl)-1,2,3,4-tetrahydronaphthalen-1-yl)-4-hydroxy-2H-thiochromen-2-oneHSDB 7119UNII-KOL4VXI5O0
Show more names
LM2219BarakiRODILONGENERATIONDifethiarolifethialoneDifethialone-13C6
C31H23BrO2SDifethialon2H-1-Benzothiopyran-2-one, 3-[3-(4'-bromo[1,1'-biphenyl]-4-yl)-1,2,3,4-tetrahydro-1-naphthalenyl]-4-hydroxy-; 3-[3-(4'-Bromo[1,1'-biphenyl]-4-yl)-1,2,3,4-tetrahydro-1-naphthalenyl]-4-hydroxy-2H-1-benzothiopyran-2-one; Baraki; Difethialone; Difethiarol; LM 2219Difethiarol (JAN)KOL4VXI5O0SCHEMBL435721SCHEMBL435722orb1737937

Properties

Computed structural properties

XLogP
8.3
Topological polar surface area
62.6 Ų
Hydrogen bond donors
1
Hydrogen bond acceptors
3
Rotatable bonds
3
Heavy atoms
35
Formal charge
0
Complexity
794

Physicochemical properties

Melting point
203 · 203-227°
Boiling point
658.3 · 658.3±55.0 °C(Predicted)
Density
1.3614 g/cm3 · 1.3614 g/cm3(Temp: 25 °C)
solubility
Chloroform: slightly soluble; Methanol: slightly soluble
form
A solid
pka
4.5 · 4.50±1.00(Predicted)
Henry's Law Constant
9.9 · 9.9×100 mol/(m3Pa) at 25℃, Duchowicz et al. (2020)
FDA UNII
4 VXI5O0 · KOL4VXI5O0
Pesticides Freedom of Information Act (FOIA)
Difethialone
EPA Substance Registry System
Difethialone (104653-34-1)
Symbol(GHS)
8 · GHS08,GHS06,GHS09
Signal word
Danger
Hazard statements
300 · H300-H310-H330-H360D-H372-H410
Precautionary statements
264 · P264-P270-P301+P310-P321-P330-P405-P501-P262-P264-P270-P280-P302+P350-P310-P322-P361-P363-P405-P501-P260-P271-P284-P304+P340-P310-P320-P403+P233-P405-P501-P260-P264-P270-P314-P501-P273-P391-P501

Safety & regulation

Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.

Safety data

ridadr
UN2588 (Pesticide, solid, poi- sonous, n.o.s.); UN2902 (Pesticide, liquid, poisonous, n.o.s.)
hs_code
29349990
Toxicity
LD50 orally in male, female rats, mice (mg/kg): 0.62, 0.42, 0.52, 0.43 (non-resistant); 0.27, 0.39, 0.46, 0.52 (warfarin resistant); LD50 in hare: 0.75 mg/kg; LC50 in mallard duck, bobwhite quail (ppm): 1.94, 0.56; LD50 at 48 hrs in daphnia magna, bluegill sunfish, rainbow trout (mg/l): 4.4, 110, 67 (Lechevin)
Signal word
Danger
Symbol(GHS)
GHS08,GHS06,GHS09
Hazard statements
H300-H310-H330-H360D-H372-H410
Precautionary statements
P264-P270-P301+P310-P321-P330-P405-P501-P262-P264-P270-P280-P302+P350-P310-P322-P361-P363-P405-P501-P260-P271-P284-P304+P340-P310-P320-P403+P233-P405-P501-P260-P264-P270-P314-P501-P273-P391-P501
Hazardous Substances Data
104653-34-1(Hazardous Substances Data)

Chemistry & industry

Applications · 3 items

DescriptionDifethialone[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].

UsesPesticide.

UsesDifethialone is an anticoagulant rodenticide widely used to control rodent infestations.

Preparation methods

PreparationDifethialone 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).

Additional notes

DefinitionChEBI: Difethialone is a member of benzenes, a member of naphthalenes and a ring assembly.

Related reactions

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Compound notes

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Database identifiers

CAS
104653-34-1
PubChem CID
91771
DTXSID
DTXSID4032374
ChEMBL
CHEMBL3188653
ChEBI
CHEBI:81893
Nikkaji
J576.168I
RIDADR
2588 · UN2588 (Pesticide, solid, poi- sonous, n.o.s.); UN2902 (Pesticide, liquid, poisonous, n.o.s.)
HS Code
29349990 · 29349990
Hazardous Substances Data
104653 · 104653-34-1(Hazardous Substances Data)
Toxicity
50 orally · LD50 orally in male, female rats, mice (mg/kg): 0.62, 0.42, 0.52, 0.43 (non-resistant); 0.27, 0.39, 0.46, 0.52 (warfarin resistant); LD50 in hare: 0.75 mg/kg; LC50 in mallard duck, bobwhite quail (ppm): 1.94, 0.56; LD50 at 48 hrs in daphnia magna, bluegill sunfish, rainbow trout (mg/l): 4.4, 110, 67 (Lechevin)