d-Tetramethrin

CHEMICAL IDENTIFICATION
Product name: d-Tetramethrin
Other name: d-trans-tetramethrin
Chemical name: 3,4,5,6-tetrahydrophthalimidomethyl-(+)cis-trans-2,2-dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylate
Chemical family: Synthetic Pyrethroids
CAS number: 7696-12-0
Molecular formula: C19H25NO4
Molecular weight: 331.42

PHYSICAL CHEMISTRY
Purity: 93% Min.
Appearance: Yellow to brown transparent viscous liquid.
Odour: Faint characteristic odour.
Boiling point: 142℃
Flash point: 212℃ (Cleveland open-cup)
Density: 1.12 g/mL (20℃)
Vapor pressure: 0.00403 Pa (25℃)
Octanol/Water Partition Coefficient: Log Pow = 4.34 (25℃)
Solubility: Easily dissolved in hexane, methanol and xylene, be mutually soluble with such synergists as Piperonyl Butoxide and S-421. Solubility in water is 0.0046 mg/L (20℃)
Stability: Stable to heat, unstable in light and decompose with alkali and some emulsifier. Can be stored over 2 years in normal condition.

PROPERTIES
D-Tetramethrin can quickly knock down mosquitoes, flies and other flying insects and can repel cockroach well. It can drive out cockroach living in dark lift so as to increase the opportunity that cockroach contact insecticide, however, the lethal effect of this product is not so strong; therefore it is often prepared with other lethal insecticides (e.g. Permethrin) in aerosol, spray or tincture, which are especially suitable for insects prevention for family, public hygiene, food and warehouse.

APPLICATIONS
Aerosol: 0.2% to 0.8% in mixture with lethal insecticides, synergist and emulsifier.
EC: 3% to 4% in mixture with other insecticides (e.g. d-cyphenothrin, permethrin).
EW: 2% in mixture with other insecticides (e.g. beta-cypermethrin, lambda-cyhalothrin, permethrin, propoxur).
ME: 4% to 5% in mixture with other insecticides (e.g. permethrin).

TOXICOLOGY
Acute toxicity:
LD50 oral (rat) >5000 mg/kg;
LD50 dermal (rat) > 5000 mg/kg.
LC50 inhalation (rat) > 1.18 mg/L of air (4h).
(4hr exposure, maximum attainable concentration).
Irritancy:
Eye irritancy: Slight irritating.
Skin irritancy: Non irritating.
Sensitisation: Non sensitising.
Long term toxicity: Non teratogenic, non mutagenic, non carcinogenic, non genotoxic.

PACKAGING
d-Tetramethrin is supplied in the packaging described below:
PVF-lined Steel drums, standard size (net weight) -- 25 kg.