Chemical Identification
Common Name
Methoprene
中文通用名
烯虫酯
IUPAC
isopropyl (E,E)-(RS)-11-methoxy-3,7,11-trimethyldodeca-2,4-dienoate
CAS
1-methylethyl (2E,4E)-11-methoxy-3,7,11-trimethyl-2,4-dodecadienoate
CAS No.
40596-69-8
Molecular Formula
C19H34O3
Molecular Structure
Category
Activity
Insect Growth Regulator
Premix
S-Methoprene
Physical Properties
Molecular weight:310.5; Physical form:Tech. is a pale yellow liquid, with a fruity odour. Density:0.924 (20 °C), 0.921 (25 °C); Composition:Except where indicated otherwise, all data refer to the (RS)- (E,E)- isomer pair. Flash point:136 °C (closed cup); Vapour pressure:0.79 mPa (25 °C, gas saturation method); Henry constant:4.76 × 10-1 Pa m3 mol-1 ( calc.); Partition coefficient(n-octanol and water):logP >6; Solubility:In water 0.76 mg/l (20 °C); ((S)-methoprene) 6.85 mg/l (20 °C). Miscible with all common organic solvents.; Stability:Stable in water, organic solvents, and in the presence of aqueous acids and alkalis. Sensitive to u.v. light.;
Toxicology
Oral:Acute oral LD50 for rats >5000 mg/kg. Percutaneous:Acute percutaneous LD50 for rabbits >2000 mg/kg, ((S)- isomer >5050 mg/kg). Non-irritating to eyes, moderately irritating ((S)- isomer slight Inhalation: LC50 for rats >4.94 mg/l, ((S)- isomer >2.38 mg/l). ADI:( JMPR) 0.03 mg/kg b.w. [1994].
Environmental Profile
Ecotoxicology: 
Algae: EC50 (48-96 h) for Scenedesmus subspicatus 1.33 mg/ml.Bees:Non-toxic to adult bees; LD50 (oral and topical) >1000 mg/bee. Bee larvae are sensitive at 0.2 mg/bee.Birds:Dietary LC50 (8 d) for chickens >4640 mg/ kg.Daphnia: LC50 (48 h) 360 mg/l.Fish: LC50 (96 h) for bluegill sunfish 4.6, trout 4.4 mg/l.Other aquatic spp.:Toxic to aquatic Diptera. 

Environmental fate: 
Animals:In mammals, the secondary metabolite cholesterol has been identified.Soil:In soil, rapidly degraded, DT50 c. 10 d.Plant:In plants, degradation principally involves ester hydrolysis, O-demethylation, and oxidative cleavage of the double bond at the 4-position. In alfalfa and rice, the principal metabolite is 7-methoxycitronellal.
Transport Information
Signal Word:CAUTION; Hazard Class:III(Slightly hazardous)

Porduct NewsMore

2-Bromoheptafluoropropane: A Key Intermediate of Broflanilide, a Meta-Diamide Insecticide with Huge Commercial Potential

broflanilide

AlgaPure seaweed extract flakes help farmer grow yield

Biostimulants

Pesticides terbufos and iprodione to be recommended for Rotterdam listing

Terbufos Iprodione

Argentina starts producing Rynaxypyr locally

Chlorantraniliprole

Chitosan Oligosaccharide:Zhongke Runyao to explore ways to industrialize research achievements on virus and cold resistant

Biostimulants

Gliforte, a unique glyphosate product with lower impact on environment

Glyphosate

MSU Licenses Technology to Adjuvants Plus Inc.

2,4-D

Amicarbazone is the active ingredient indicated for sugarcane in Brazil, points out UPL Brasil

Amicarbazone

Syngenta Portugal presents Camix herbicide

S-metolachlor Mesotrione

New president of Aprosoja Brazil says it is “better not to use dicamba”

Dicamba

Related CompaniesMore

Synergetica,Inc.

Country:  United States

Agroquisa – Agroquimicos, SA

Country:  Portugal

Wellmark International

Country:  United States

Vyzkumny ustav organickych syntez a.s.(VUOS)

Country:  Czech Republic