Brodifacoum
Title: Brodifacoum
CAS Registry Number: 56073-10-0
CAS Name: 3-[3-(4¢-Bromo[1,1¢-biphenyl]-4-yl)-1,2,3,4-tetrahydro-1-naphthalenyl]-4-hydroxy-2H-1-benzopyran-2-one
Additional Names: 3-[3-(4¢-bromobiphenyl-4-yl)-1,2,3,4-tetrahydro-1-naphthyl]-4-hydroxycoumarin
Manufacturers' Codes: PP-581; WBA-8119
Trademarks: Talon (Zeneca Ag Prod)
Molecular Formula: C31H23BrO3
Molecular Weight: 523.42
Percent Composition: C 71.13%, H 4.43%, Br 15.27%, O 9.17%
Literature References: Coumarin analog. Prepn: M. R. Hadler, R. S. Shadbolt, DE 2424806; eidem, US 3957824 (1975, 1976 to Ward, Blenkinsop & Co.); eidem; J. Chem. Soc. Perkin Trans. 1 1976, 1190. Anticoagulant activity: M. R. Hadler, R. S. Shadbolt, Nature 253, 275 (1975). Field trials: B. D. Rennison, A. C. Dubock, J. Hyg. 80, 77 (1978); F. P. Rowe et al., ibid. 81, 197 (1978). Efficacy and toxicity: L. Yuet-Ming, Malays. Agric. J. 52, 1 (1980).
Properties: Off-white powder, mp 228-230°. Insol in water. Slightly sol in alc, benzene; sol in acetone, chloroform. LD50 orally in male, female field rats: 0.16, 0.18 mg/kg (Yuet-Ming).
Melting point: mp 228-230°
Toxicity data: LD50 orally in male, female field rats: 0.16, 0.18 mg/kg (Yuet-Ming)
Use: Rodenticide.

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