| Title:  Amitraz CAS Registry Number:  33089-61-1 CAS Name:  N¢-(2,4-Dimethylphenyl)-N-[[(2,4-dimethylphenyl)imino]methyl]-N-methylmethanimidamide Additional Names:  N-methyl-N¢-2,4-xylyl-N-(N-2,4-xylylformimidoyl)formamidine;  N,N-di-(2,4-xylyliminomethyl)methylamine;  2-methyl-1,3-di-(2,4-xylylimino)-2-azapropane;  1,5-di-(2,4-dimethylphenyl)-3-methyl-1,3,5-triazapenta-1,4-diene;  N-methylbis(2,4-xylyliminomethyl)amine Manufacturers' Codes:  BTS-27419;  U-36059;  ENT-27967 Trademarks:  Aludex (Intervet);  Ectodex (Intervet);  Mitaban (Pharmacia & Upjohn);  Mitac (Bayer CropSci.);  Taktic (Intervet);  Topline (Intervet) Molecular Formula:  C19H23N3 Molecular Weight:  293.41 Percent Composition:  C 77.78%, H 7.90%, N 14.32% Literature References:  Formamide insecticide for use on deciduous fruit and citrus mites, and tick eradication in cattle.  Prepn:  I. R. Harrison et al., DE 2061132; eidem, US 3781355 (1971, 1973 both to Boots); and activity:  idem et al., Pestic. Sci. 4, 901 (1973).  Prepn and characterization of polymorphs:  M. M. de Villiers et al., J. Agric. Food Chem. 52, 7362 (2004).  Bacterial degradation:  E. R. Allcock, D. R. Woods, J. Appl. Bacteriol. 44, 383 (1978).  Properties and use as insecticide:  V. Labonne et al. Def. Veg. 33, 66 (1979).  Pharmacokinetics and metabolism in animals:  M. A. Pass, T. D. Mogg, J. Vet. Pharmacol. Ther. 18, 210 (1995).  Use in treatment of demodicosis in dogs:  L. Medleau, T. Willemse, J. Small Anim. Pract. 36, 3 (1995). Properties:  White monoclinic needles, mp 86-87°.  Unstable to acidic pH.  Soly at 20° (g/100 cc):  water <10-4; methanol 2.5; xylene 33; acetone 50.  LD50 in male rats, female mice, rabbits, guinea pigs, bobwhite quail (mg/kg):  800, >1600, >100, >400, 788 orally; LD50 in rabbits, male rats (mg/kg):  >200, >1600 dermally; LC50 (48 hr) in rainbow trout, Japanese carp:  3.3, 1.2 ppm (Labonne). Melting point:  mp 86-87° Toxicity data:  LD50 in male rats, female mice, rabbits, guinea pigs, bobwhite quail (mg/kg):  800, >1600, >100, >400, 788 orally; LD50 in rabbits, male rats (mg/kg):  >200, >1600 dermally; LC50 (48 hr) in rainbow trout, Japanese carp:  3.3, 1.2 ppm (Labonne) Use:  Acaricide; insecticide. Therap-Cat-Vet:  Ectoparasiticide.  |