9253. TFM

Nomenclature

CAS number: 88-30-2
4-Nitro-3-(trifluoromethyl)phenol; α,α,α-trifluoro-4-nitro-m-cresol; 3-trifluoromethyl-4-nitrophenol; HOE-2770; Lamprecid (Clariant).
C7H4F3NO3; mol wt 207.11.
C 40.59%, H 1.95%, F 27.52%, N 6.76%, O 23.18%.

Description and references

A substance toxic to the parasitic sea lamprey, Petromyzon marinus, which preys upon commercial fish species of the Great Lakes: Scherer et al., DE 1068505 C.A. 55, 9774d (1961) corresp to US 3157571 (1959, 1964, both to Hoechst). Toxicological studies in fish, and bibliography: Kawatski, McDonald, Comp. Gen. Pharmacol. 5, 67 (1974). Physical properties: Smith, J. Chem. Eng. Data 6, 607 (1961). Review: Schnick, Investigations in Fish Control, no. 44 (Sport Fisheries and Wildlife Bureau) 31 pp.

Chemical structure

Properties

mp 76°. pK 6.07. uv max (acid): 280 nm (ε 1930); in 1% NaOH: 300, 395 nm (ε 4650, 13,130); in 95% ethanol: 290 nm (ε 14,700).

Use

Lamprey killer.