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Merck
CN

32677

Difenacoum

PESTANAL®, analytical standard

Synonym(s):

3-(3-Biphenyl-4-yl-1,2,3,4-tetrahydro-1-naphthyl)-4-hydroxycoumarin, 3-(3-Biphenyl-4-yl-1,2,3,4-tetrahydro-naphthalen-1-yl)-4-hydroxychromen-2-one

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About This Item

Empirical Formula (Hill Notation):
C31H24O3
CAS Number:
56073-07-5
Molecular Weight:
444.52
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
329754289
EC Number:
259-978-4
Beilstein/REAXYS Number:
8360065
MDL number:
MFCD01632770

Key Documents

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InChI key

FVQITOLOYMWVFU-UHFFFAOYSA-N

InChI

1S/C31H24O3/c32-30-26-12-6-7-13-28(26)34-31(33)29(30)27-19-24(18-23-10-4-5-11-25(23)27)22-16-14-21(15-17-22)20-8-2-1-3-9-20/h1-17,24,27,32H,18-19H2

SMILES string

OC1=C(C2CC(Cc3ccccc23)c4ccc(cc4)-c5ccccc5)C(=O)Oc6ccccc16

grade

analytical standard

product line

PESTANAL®

shelf life

limited shelf life, expiry date on the label

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

application(s)

agriculture
environmental

format

neat

Quality Level

100

Related Categories

General description

Difenacoum is a coumarin anticoagulant, which is developed as a rodenticide, in order to control warfarin‐resistant rodents.

Application

Difenacoum may be used as a reference standard in the determination of difenacoum in tissue samples using high performance liquid chromatography (HPLC).
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Legal Information

PESTANAL is a registered trademark of Merck KGaA, Darmstadt, Germany

signalword

Danger

Hazard Classifications

Acute Tox. 1 Dermal - Acute Tox. 1 Inhalation - Acute Tox. 1 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Repr. 1B - STOT RE 1

target_organs

Blood

Storage Class

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk

WGK 3

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

Regulatory Information

非剧毒-急性毒性1
危险化学品
农药列管产品
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Certificates of Analysis (COA)

Lot/Batch Number
BCCL1265
BCCG1520
BCCD4919
BCBT5181

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M J Kelly et al.
Journal of chromatography, 620(1), 105-112 (1993-10-22)
A rapid and sensitive high-performance liquid chromatographic method for the analysis of cis and trans diastereomers of the anticoagulant rodenticide difenacoum has been described. The methodology demonstrates potential for the analysis of diastereomers of related 4-hydroxycoumarin anticoagulants. Separations were achieved
Field trials of second-generation anticoagulants against difenacoum-resistant Norway rat population.
Greaves HJ, et al.
Epidem. Inf., 89(2), 295-301 (1982)
R Wallin
The Biochemical journal, 236(3), 685-693 (1986-06-15)
In the liver, it appears that there are two different pathways for vitamin K reduction. One pathway is irreversibly inhibited by coumarin anticoagulant drugs. The other pathway has been shown in the present study to be composed of enzymes that
S C Smolinske et al.
Pediatrics, 84(3), 490-494 (1989-09-01)
This prospective study was undertaken to determine the incidence, severity, time of onset, and duration of coagulopathy in children following accidental ingestion of long-acting anticoagulant rodenticides, often called "superwarfarins." Of 110 children, who ingested superwarfarins and in whom one or
S Terneu et al.
Acta clinica Belgica, 58(4), 241-244 (2003-11-26)
A 36-year-old woman presented to the Emergency Room because of abdominal pain associated with hematuria and red blood blending to stool. On admission, the physical examination revealed abdominal tenderness and diffuse cutaneous hematoma. The laboratory findings showed abnormal clotting tests
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