2-(alpha-(4-chlorophenyl)phenylacetyl)indan-1,3-dione; 2-[(4-chlorophenyl)(phenyl)acetyl]-1H-indene-1,3(2H)-dione

3-[3-(4'-bromobiphenyl-4-yl)-1,2,3,4-tetrahydro-1-naphthyl]-4-hydroxycoumarin

C₂₃H₁₅ClO₃

Form Off-white to buff or beige powder.

Melting point 228-232℃.

Density 1.42 (25℃.).

Solubility In water 3.8×10-3 (pH 5.2), 0.24 (pH 7.4), 10 (pH 9.3) (all in mg/l, 20℃). In acetone 20, chloroform 3, benzene <6 (all in mg/l, 20℃).

Oral Acute oral LD50 for male rats 0.4, male rabbits 0.2, male mice 0.4, female guinea pigs 2.8, cats c. 25, dogs 0.25-3.6 mg/kg. Skin and eye Acute percutaneous LD50 for rabbits 0.25-0.63 mg/kg. Slight to mild skin and eye irritant (rabbits). A moderate skin sensitiser (guinea pigs), but negligible risk of sensitisation from formulated product. Inhalation LC50 (4 h) for male rats 4.86, female rats 3.95 mg/l air.

Controls most rodent pests, including Rattus norvegicus, R. rattus, Mus musculus and M. domesticus, at lower rates than many other anticoagulants (e.g. warfarin and pindone); also Cricetus cricetus, Mesocricetus auratus, Microtus pennsylvanicus, M. pinetorum, R. argentiventer, R. rattus mindanensis and rodents, such as hamsters, that are difficult to control with other anticoagulants.

Description: Off-white or yellowish solid, free from visible extraneous matter;

Active Ingredient Content(w/w): ≥97%;

Cis-trans Isomer Scale α(A/B): 1.0 ~ 4.0;

Loss on Drying(w/w): ≤1.0%;

pH Value: 4.0~8.5;

Acetone Insoluble Material(w/w): ≤0.5%