| Chemical |
Decamethrin |
| CAS-number : |
52820-00-5 |
| |
| Synonyms : |
| (S)-alpha-cyano-3-phenoxybenzyl-(1R,3R)-3-(2,2-dibromovinyl)-2,2-dimethylcyclopropanecarboxylate. |
| cyclopropanecarboxylic acid,3-(2,2-dibromoethenyl)-2,2-dimethyl-,cyano(3-phenoxyphenyl)methyl ester |
| decamethrin,(1R-(1-alpha(S*),3-alpha))- (CAS 52918-63-5) |
| Dekametriini |
| deltamethrin |
| |
| Sumformula of the chemical : |
| C22H19Br2NO3 |
| |
| Uses : |
Active ingredient in insecticides.
|
| |
| Molecular weight : |
505.24 |
| |
| Vapor pressure, mmHg : |
| 0.0000001 |
at 25°C, exact 0.000000015 mmHg, KEMI 1990 |
| |
| Water solubility, mg/l : |
| 0.002 |
<0.002 mg/l, 20°C, KEMI 1990 |
| |
| Melting point, °C : |
| 98 |
98 - 102 °C, KEMI 1990 |
| 102 |
|
| |
| Log octanol/water coefficient, log Pow : |
| 5.4 |
KEMI 1990 |
| |
| Mobility : |
The leaching behaviour of deltametrin was studied in different
soil types.
Deltametrin didn't leach or only a few.
The
transformationproducts were leaching more than deltametrin.
Rf-values for transformationproducts were 0.1 - 0.7.
(KEMI 1990)
|
| |
| Total degradation in soil : |
Deltametrin was degraded by microorganisms.
Degradation was
quicklier in acidic and/or granular soils with low contents of
organic carbon.
Half-lives of deltametrin were 11 - 72 days,
depends on temperature.
(KEMI 1990)
|
| |
| Other information of bioaccumulation : |
BCF-value for fish was determined 972 for viscera and 144 for
hole fish.
(KEMI 1990)
|
| |
| LD50 values to mammals in oral exposure, mg/kg : |
| 31 |
orl-rat, Lewis & Sweet 1984 |
| |
-- |
| 80 |
52820-00-5, orl-rat, Sweet 1987 |
| |
-- |
| 3450 |
52918-63-5, orl-mus, Sweet 1987 |
| 30 |
52918-63-5, orl-rat, Sweet 1987 |
| |
-- |
| 77 |
52918-63-5, orl-rat, KEMI 1990 |
| |
| LD50 values to mammals in non-oral exposure , mg/kg : |
| 2940 |
>2940 mg/kg, 52918-63-5, idr-rbt |
| |
KEMI 1990 |
| |
| LC50 values to mammals in inhalation exposure, mg/m3 : |
| 785 |
2hr, ihl-rat, Lewis & Sweet 1984 |
| |
-- |
| 600 |
6hr, 52918-63-5, ihl-rat, KEMI 1990 |
| |
| LDLo values to mammals in non-oral exposure , mg/kg : |
| 6 |
52820-00-5, ivn-mus, Sweet 1987 |
| 0.08 |
52918-63-5, icb-mus, Sweet 1987 |
| 1 |
52918-63-5, ivn-rat, Sweet 1987 |
| |
| TDLo values to mammals in oral exposure, mg/kg : |
| 30 |
52918-63-5, orl-mus, 7 - 16d preg, |
| |
specific developmental abnormalities |
| 70 |
52918-63-5, orl-rat, 7 - 20d preg, |
| |
effects on newborn |
| |
Sweet 1987 |
| |
| Other information of mammals : |
In 3 months studies with rat and dog it was found effects in
reflexs and in moving.
NOEL: 1.0 mg/kg/day.
(KEMI 1990)
|
| |
| Carcinogenicity : |
In the chronic toxicity studies the only effect was degreasing
bodyweight with rat and mouse.
Anything about cancer wasn't
observed.
NOEL: 2.5 mg/kg/day (rat) and 13 mg/kg/day (mouse).
(KEMI 1990)
|
| |
| Mutagenicity : |
Cytogenetic analysis: fish-multiple; 100 nl/l, CAS 52918-63-5.
(Sweet 1987)
|
| |
| Other information of birds : |
Acute and subacute toxicity for birds was low and moderate,
respectively.
The toxicity was biggest for duck.
LD50:>4000 mg/kg (duck); LC50:>4640 mg/kg feed (duck)
(KEMI 1990)
|
| |
| Effects on bees : |
Deltametrin has found to be very high toxicity for bees at
laboratory.
LD50 (acute contact) 0.047 - 0.067 ug/bee.
(KEMI 1990)
|
| |
| LC50 values to fishes, mg/l : |
| 0.0005 |
48hr, Salmo gairdneri, |
| 0.0006 |
48hr, Cyprinodon macularis, |
| 0.001 |
48hr, Gambusia affinis |
| 0.008 |
48hr, Tilapia mossambica |
| |
52918-63-5, Mulla et al. 1978 |
| |
-- |
| 0.01 |
0.01 - 0.001, fishes, act |
| 0.001 |
52918-63-5, Pesticide Manual 1983 |
| |
| Other information of water organisms : |
Deltametrin has found to be very high acute toxicity for fish in
the laboratory studies.
LC50: 0.0004 - 0.002 mg/l, different
fishes, 50 - 96 hr.
(KEMI 1990)
Deltametrin has found to be very high toxicity for Daphnia.
LC50: 0.005 mg/l.
(KEMI 1990)
|
References |
| 70 | Anon. 1983c.
Pesticide Manual.
Worthing, C.R.
(toim.)
A world compedium.
The British Crop Biotection Council.
London. 7 th edition. |
| 3101 | KEMI 1990 - 1991.
Kemikalieinspektionens ämnesblad.
Faktablad
för verksamma ämnen i bekämpningsmedel avsedda för jordbruk och
trädgårdsnäring mm. |
| 1589 | Lewis, R.J. & Sweet, D.V. 1984.
Registry of toxic effects of
chemical substances.
National Institute for Occupational Safety
and Health.
No. 83-107-4. |
| 999 | Mulla, M.S. et al. 1978.
Toxicity of mosquito larvicidal
pyrethroids to four species of freshwater fishes Environm.
Entomol. 7: 428. |
| 2101 | Sweet, D. 1987.
Registry of toxic effects of chemical
substances 1985 - 1986 edition.
U.S.
Department of health and
human services. |
