bioallethrin 93%TC CAS No.:28434-00-6 Insecticide CAS NO.28434-00-6

bioallethrin

cas #: 584-79-2

categories: insecticides

description:

nomenclature
common name: bioallethrin; depalléthrine; d-trans-allethrin
iupac name: (rs)-3-allyl-2-methyl-4-oxocyclopent-2-enyl (1r,3r)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylate alt: (rs)-3-allyl-2-methyl-4-oxocyclopent-2-enyl (+)-trans-chrysanthemate
roth: (rs)-3-allyl-2-methyl-4-oxocyclopent-2-enyl (1r)-trans-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylate
chemical abstracts name: 2-methyl-4-oxo-3-(2-propenyl)-2-cyclopenten-1-yl 2,2-dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylate
cas rn: [584-79-2] (same as for allethrin)
eec no.: 209-542-4

physical chemistry
composition: bioallethrin contains 93% m/m total isomers, of which there is 90% trans- isomer pair and 3% cis- isomer pair. material in 'd-trans' is 90% m/m bioallethrin. for d-allethrin, see allethrin [(1r)- isomers].

mol. wt.: 302.4;

m.f.: c19h26o3;

form: bioallethrin is an orange-yellow viscous liquid. the material in 'd-trans' is an amber viscous liquid.

m.p.: not applicable; no crystallisation observed at -40c.

b.p.: bioallethrin 165-170c/0.15 mmhg;

v.p.: 43.9 mpa (25c);

kow: logp = 4.68 (25c);

henry: 2.89 pa m3 mol-1 (calc.)

s.g./density: 1.012 at 20c;

solubility: bioallethrin: in water 4.6 mg/l (25c). completely miscible with acetone, ethanol, chloroform, ethyl acetate, hexane, toluene and dichloromethane (20c). stability: degraded by u.v. light. in aqueous solution, dt501410.7 d (ph 5), 547.3 d (ph 7), 4.3 d (ph 9). specific rotation: [a]d20 -18.5 to -22.5 (50 g/l toluene); f.p.: 87c (pensky-martens

pensky-martens