The active ingredient deltamethrin (NRDC 161 and RU 22974) is found in a variety of commercial insecticide products. Trade names for products containing deltamethrin include Butoflin, Butoss, Butox, Cislin, Crackdown, Cresus, Decis, Decis-Prime, K-Othrin, and K-Otek (1, 83, 86, 61, 20). Deltamethrin 20% SC
Deltamethrin 200 g/kg
Class: Synthetic Pyrethroid
CAS Number: 52918-63-5
Empirical formula : C22H19Br2NO3
Chemical Name
(S)-α-cyano-3-phenoxybenzyl (1R,3R)-3-(2,2-dibromovinyl)-2,2-dimethylcyclopropane carboxylate
Structural Formula :
Molecular Weight: 505.2
Description
The material shall consist of a suspension of fine particles of technical Deltamethrin, in an aqueous phase together with suitable formulants. After gentle agitation, the material shall be homogeneous and suitable for further dilution in water.
PH Range
The pH of an aqueous dispersion shall be 4.5 to 7.5
Pourability
Maximum “residue”: 5%
Spontaneity of dispersion
A minimum of 90% of the deltamethrin content found in suspension after 5 min in CIPAC Standard Water D at 30 ± 2°C
Suspensibility
A minimum of 90% of the Deltamethrin content found in suspension after 30 min in CIPAC Standard Water D at 30 ± 2°C
Wet sieve test
Maximum: 2% retained on a 75 μm test sieve.
Persistent foam
Maximum: 50 ml after 1 min
Storage stability
Stability at elevated temperature
After storage at 54 ± 2°C for 14 days, the determined average active ingredient content must not be lower than 95% relative to the determined mean content found before storage and the formulation shall continue to comply with the clauses:
– pH range
– Pourability
– Spontaneity of dispersion
– Suspensibility
– Wet sieve test
Stability at 0 °C
After storage at 0 ± 2°C for 7 days, the formulation shall continue to comply
with the clauses:
– Suspensibility
– Wet sieve test
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