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HomeProduct name listCoumatetralyl

Coumatetralyl

  • CAS NO.:5836-29-3
  • Empirical Formula: C19H16O3
  • Molecular Weight: 292.33
  • MDL number: MFCD00078644
  • EINECS: 227-424-0
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-03-14 15:18:27
Coumatetralyl Structural

What is Coumatetralyl?

Description

Coumatetralyl, is also called 4-hydroxy-3-(1,2,3,4- tetrahydro-1-naphthyl)coumarin, consists of colorless crystals which are slightly soluble in water (pH 7), benzene, toluene, diethyl ether, readily soluble in dimethylformamide, dichloromethane, isopropanol, soluble in alcohols, acetone.
Coumatetralyl is produced by the condensation of 4- hydroxycoumarin with 1,2,3,4-tetrahydro-1-naphthol (28). First introduced in 1956, coumatetralyl is one of the most widely used first-generation anticoagulants. It is not, however, available in the United States.

Chemical properties

Coumatetralyl is a yellowish-white, crystalline solid.

The Uses of Coumatetralyl

Coumatetralyl is used as an anticoagulant rodenticide. Coumatetralyl is widely used to control rodent populations.

Definition

ChEBI: Coumatetralyl is a hydroxycoumarin.

General Description

Yellowish-white crystalline powder; colorless when pure; odorless. Coumatetralyl is used as a rodenticide, functioning as an anticoagulant that does not induce bait-shyness.

Reactivity Profile

Ketones, such as Coumatetralyl, are reactive with many acids and bases liberating heat and flammable gases (e.g., H2). The amount of heat may be sufficient to start a fire in the unreacted portion of the ketone. Ketones react with reducing agents such as hydrides, alkali metals, and nitrides to produce flammable gas (H2) and heat. Ketones are incompatible with isocyanates, aldehydes, cyanides, peroxides, and anhydrides. They react violently with aldehydes, HNO3, HNO3 + H2O2, and HClO4.

Health Hazard

Overdosage with anticoagulants may cause acute bleeding. Pre-existing blood clotting disease or liver disease may be aggravated by exposure.

Fire Hazard

(Non-Specific -- Coumarin Derivative Pesticide, Solid, n.o.s.) Coumatetralyl may burn but does not ignite readily. Fire and runoff from fire control water may produce irritating or poisonous gases. Runoff from fire control water may give off poisonous gases. Container may explode in heat of fire. Enolic form of compound has acidic properties and can form salts with metals.

Agricultural Uses

Rodenticide: Coumatetralyl is used for rat control and functions as an anticoagulant, of the warfarin type, that does not induce bait-shyness. Not approved for use in EU countries or the U.S. There are 17 global suppliers.

Trade name

BAY® 25634; BAY ENE® 11183B; BAYER® 25,634; ENDOX®; ENDROCID®; ENDROCIDE®; RACUMIN®; RAUCUMIN® 57; RODENTIN®

Potential Exposure

Coumatetralyl is used as a rodenticide, functioning as an anticoagulant that does not induce baitshyness.

First aid

If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least15 min, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts theskin, remove contaminated clothing and wash immediatelywith soap and water. Speed in removing material from skinis of extreme importance. Shampoo hair promptly if contaminated. Seek medical attention immediately. If this chemicalhas been inhaled, remove from exposure, begin rescuebreathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if heart actionhas stopped. Transfer promptly to a medical facility. Whenthis chemical has been swallowed, get medical attention.Give large quantities of water and induce vomiting. Do notmake an unconscious person vomit. Medical observation isrecommended for 24-36 h following overexposure, aseffects may be delayed.

storage

Color Code—Blue: Health Hazard/Poison: Storein a secure poison location. Prior to working with thischemical you should be trained on its proper handling andstorage. Store in tightly closed containers in a cool, wellventilated area away from oxidizers

Shipping

UN3027 Coumarin derivative pesticides, solid, toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous materials.

Toxicity evaluation

The acute toxicity for Norway rats is given as high but, as with many of these compounds, coumatetralyl is more potent when administered in consecutive daily doses. No satisfactory data are available on the acute oral toxicity of the compound to mice. However, a complete kill of mice was obtained in the laboratory following 21 days of feeding on coumatetralyl bait (29). Proprietary baits generally carry 0.375% coumatetralyl. Powder concentrates are available (strength 0.75%) which are used for the preparation of poisoned baits and as a tracking dust (18).

Incompatibilities

Contact with oxidizers may cause fire and explosion hazard. Keep away from metals.

Waste Disposal

Dissolve in a solvent and burn in a furnace by spraying in the solution

Properties of Coumatetralyl

Melting point: 172-176 °C
Boiling point: 374.26°C (rough estimate)
Density  1.2251 (rough estimate)
refractive index  1.4200 (estimate)
Flash point: 100 °C
storage temp.  0-6°C
solubility  Chloroform (Slightly), DMSO (Slightly), Methanol (Slightly, Heated)
form  neat
pka 4.50±1.00(Predicted)
CAS DataBase Reference 5836-29-3(CAS DataBase Reference)
NIST Chemistry Reference 2H-1-benzopyran-2-one, 4-hydroxy-3-(1,2,3,4-tetrahydro-1-naphthalenyl)-(5836-29-3)
EPA Substance Registry System Coumatetralyl (5836-29-3)

Safety information for Coumatetralyl

Signal word Danger
Pictogram(s)
ghs
Skull and Crossbones
Acute Toxicity
GHS06
ghs
Health Hazard
GHS08
ghs
Environment
GHS09
GHS Hazard Statements H311:Acute toxicity,dermal
H372:Specific target organ toxicity, repeated exposure
H410:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes P201:Obtain special instructions before use.
P202:Do not handle until all safety precautions have been read and understood.
P273:Avoid release to the environment.
P280:Wear protective gloves/protective clothing/eye protection/face protection.

Computed Descriptors for Coumatetralyl

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