D-Phenothrin

한글명:D-Phenothrin

카스 번호26046-85-5

상품명:D-Phenothrin

CBNumberCB9699395

분자식C23H26O3

포뮬러 무게350.45

MOL 파일26046-85-5.mol

화학적 성질

끓는 점	437.0±45.0 °C(Predicted)
밀도	1.120±0.06 g/cm3(Predicted)
증기압	1.9×10^-5Pa (21.4 °C)
저장 조건	Sealed in dry,2-8°C
용해도	클로로포름(약간 용해됨), 메탄올(약간 용해됨)
물리적 상태	기름
수용성	<0.01mg l^-1(25°C)
색상	무색~진한 노란색
CAS 데이터베이스	26046-85-5(CAS DataBase Reference)
EPA	d-Phenothrin (26046-85-5)

위험 및 안전 성명

독성	LD50 oral in mouse: > 10gm/kg

그림문자(GHS)

D-Phenothrin 화학적 특성, 용도, 생산

용도
Phenothrin is used for the control of insects for public health. It is also used to protect stored grain.
신진 대사 경로
Phenothrin is the name given to the 1RS-cis-trans isomer mixture (racemic). The product now used is d-phenothrin which is 95% 1R and 75% trans. It has no field use because the chrysanthemate moiety is very sensitive to photodegradation. Nevertheless, information on its photochemistry and its fate in soils and plants has been published. Several studies in rodents have been reported; this is a reflection of its use in public health. Phenothrin is degraded mainly by photo-oxidation and by hydrolysis and oxidation in plants and animals.
Degradation
Phenothrin is stable under normal storage conditions but it is labile to base, being hydrolysed to trans-2,2-dimethyl-3-(2-methylprop-1-enyl)- cyclopropanecarboxylic acid (11, trans-chrysanthemic acid) and 3-phenoxybenzyl alcohol (13,3PBAlc) (Scheme 2). It is sensitive to light and, for example, as a thin film at midday in the summer at 55 ° N, it was degraded with a DT₅₀ of 2.5-3.0 hours (Samsonov and Makarov, 1996).
When (lR)-trans-[¹⁴C-carboxyl]phenotwhraisn irradiated in degassed benzene solution, the only product was the cis-isomer. However, in oxygenated benzene solution, degradation was about 10-fold faster and many products were detected (Ruzo et al., 1982). A similar array of products was seen on exposure of thin films to sunlight. Major products (Scheme 1) were formed by oxidation at the isobutylene substituent giving the epoxide (2), the alcohol (3), the aldehyde (4) and the carboxylic acid (5). Caronaldehyde (6) and the caronic acid derivative (7) were formed by cleavage of ozonolysis products and the hydroperoxide (8) was formed by ene reactions at the 1’-position. Ester cleavage to 3PBAlc, 3PBAl and 3PBA (not shown in Scheme 1) was relatively minor.

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