www.ymparisto.fi
 
 
Data bank of environmental chemicals     |     The Finnish Environment Institute (SYKE)
 


29.3.2024

Data bank of environmental properties of chemicals


Chemical
Methoprene
CAS-number :
40596-69-8
 
Synonyms :
(isopropyl(2E-4E)-11-methoxy-3,7,11-trimethyl-dodeca-2,4-dienoate
2,4-Dodecadienoic acid, 11-methoxy-3,7,11-trimethyl-, 1- methylethyl ester, (E,E)-
altosid-SR-10
Metopreeni
ZR-515
 
Sumformula of the chemical :
C19H34O3
EINECS-number :
2549932
 
Uses :
Insect growth regulator; prevents adult emergence of
mosquitoes, houseflies, stable-flies and blackflies by
preventing metamorphosis of final instar larvae.
 
State and appearance :
Amber liquid.
 
Spesicif gravity (water=1) :
0.9261  at 20 °C
 
Vapor pressure, mmHg :
0.0000237  at 25 °C
0.00016  at 40 °C
 
LD50 values to mammals in oral exposure, mg/kg :
34600  orl-rat, Martin 1968
 
LD50 values to mammals in non-oral exposure , mg/kg :
3000  skn-rbt, Martin 1968
 
Teratogenicity :
Teratogenicity: no effects on rats at 1000 mg/kg (Martin 1968).
 
LC50 values to crustaceans, mg/l :
2.15  adult female,96hr, Gammarus aequieaudu
1.95  adult male,96hr, Gammarus aequieaudu
  Gradon et al. 1976
 
LC50 values to fishes, mg/l :
106  96hr, Salmo gairdneri
86  96hr, Oncorhynchus kisutch
  McKague & Pridmore 1978
  --
4.39  act, Salmo trutta, Martin 1968
 
Effects on reproduction of water organisms :
Decapod: Rhithropanopeus harrissii: adult: 1.30 mg/l, 12 - 15
days. 
Progressive inhibition of vitellogenesis and stimulation
of spermatogenesis after 30 - 45 days (Payen & Costlow 1977).

References
497Gradom, L. et al. 1976. Toxicity of altosid to the crustacean Gammarus aequicauda. Mosquito News, 36: 294.
897Martin, H. 1968. Pesticide manual, British crop protection council, Clacks Farm, Boreley, Ombersley, Droitwich, Worcester, U.K.
919McKague, A.B. & Pridmore, R.B. 1978. Toxicity of altoxid and dimilin to juvenile rainbow trout and coho salmon, Bull. Environm. Contam. Toxicol. 20: 167 - 169.
1852Payen, G.G. & Costlow, J.D. 1977. Effects of a juvenile hormone mimic on male and female gametogesis of the mud-crab, Rhithropanopeus harrisii (Gould) (Brachyura: Xanthidae). Biol Bull. 152: 199.

 
 
© Copyright Environmental Administration