Dicofol or kelthane is a white crystalline, wettable powder dissolved in a liquid carrier, (water). The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. Since it is a liquid it can easily penetrate the soil and contaminate groundwater and nearby streams. It can cause illness by inhalation, skin absorption, and/or ingestion. It is used as a pesticide.
颜色/状态:
Colorless solid
气味:
Solids have slight characteristic odor
沸点:
180 °C at 0.1 mm Hg
熔点:
77.5 °C
闪点:
193 °C o.c.
溶解度:
400 g/L in acetone, ethyl acetate and toluene at 25 °C. 36 g/L in methanol at 25 °C. 30 g/L in hexane and isopropanol at 25 °C
密度:
greater than 1.1 at 68 °F <0.9 at 20°C (liquid) (USCG, 1999)
蒸汽压力:
3.98X10-7 mm Hg at 25 °C (technical)
自燃温度:
986 °F (USCG, 1999)
分解:
Dangerous: when heated to decomposition ... they evolve highly toxic /hydrogen/ chloride fumes. /chlorides/
DDT in insects (drosophila) is metabolized by dechlorination to form DDE (2,2-bis(p-chlorophenyl)-1,1-dichloroethylene) or by alpha-hydroxylation to form ... Kelthane. /DDT/
The mouse has the ability to easily convert dicofol to water-soluble metabolites, eg, 4,4'-dichlorobenzhydrol. (14)C-dicofol and (3)H-dicofol were administered to male mice, then radioactivity was measured in urine. 40.7% (14)C and 49.8% (3)H of the dose was excreted within 24 hr. Metabolites in both systems were separated by gas chromatography and characterized by cleavage with beta-glucosidase and beta-glucuronidase.
Dicofol can be absorbed via oral, inhahation, and dermal routes. It is distributed primarily to the adipose tissue, as well as the adrenal glands, thyroid, and liver. Metabolism of dicofol produces the metabolites 4,4'-dichloro-benzophenone and 4,4'-dichlorodicofol. Dicofol and its metabolites are excreted mainly in the faeces. (L631, L632)
Like other organochloride pesticides, dicofol is believed to act by at least four mechanisms, possibly all functioning simultaneously. It may reduce potassium transport across the membrane. Dicofol also alters the porous channels through which sodium ions pass. These channels activate (open) normally but are inactivated (closed) slowly, thus interfering with the active transport of sodium out of the nerve axon during repolarization. Dicofol inhibits neuronal adenosine triphosphatases (ATPases), particularly Na+K+-ATPase, and Ca2+-ATPase which play vital roles in neuronal repolarization. Dicofol also inhibits the ability of calmodulin, a calcium mediator in nerves, to transport calcium ions that are essential for the release of neurotransmitters. All these inhibited functions reduce the rate of depolarization and increase the sensitivity of neurons to small stimuli that would not elicit a response in a fully depolarized neuron. Difocol is also an endocrine disruptor and binds both the androgen and estrogen receptor. In addition, it may alter sex hormone metabolism by directly inhibiting cytochrome P-450 19A1. Difocol is able to competitively bind transthyretin, which lowers plasma thyroid hormone levels. (T10, A214, A228, A229)
来源:Toxin and Toxin Target Database (T3DB)
毒理性
致癌性证据
癌症分类:C组可能的人类致癌物
Cancer Classification: Group C Possible Human Carcinogen
来源:Hazardous Substances Data Bank (HSDB)
毒理性
致癌性证据
没有关于人类的数据。动物致癌性证据有限。总体评估:第3组:该物质对人类致癌性无法分类。
No data are available in humans. Limited evidence of carcinogenicity in animals. OVERALL EVALUATION: Group 3: The agent is not classifiable as to its carcinogenicity to humans.
来源:Hazardous Substances Data Bank (HSDB)
毒理性
致癌物分类
国际癌症研究机构致癌物:敌可涕
IARC Carcinogenic Agent:Dicofol
来源:International Agency for Research on Cancer (IARC)
毒理性
致癌物分类
国际癌症研究机构(IARC)致癌物分类:第3组:无法归类其对人类致癌性
IARC Carcinogenic Classes:Group 3: Not classifiable as to its carcinogenicity to humans
来源:International Agency for Research on Cancer (IARC)
Retention of kelthane in adipose tissue /of rats/ was more marked in males than in females. The rate of disappearance of kelthane was about 3/4 in male rats and in the females about 2/5 of the stored insecticide over a 13 week period.
In rats fed 10 mg/kg dicofol in the diet for 10 weeks, the concentration in the adipose tissue of females was 31.2 mg/kg & that in males 13.9 mg/kg. After oral administration of radiolabelled dicofol to mice, radioactivity associated with water sol metabolites was detected in the urine.
来源:Hazardous Substances Data Bank (HSDB)
吸收、分配和排泄
氯化杀虫剂可能通过呼吸道、消化道和皮肤吸收,无论其途径如何,这种吸收都会被油性物质促进。
/Chlorinated insecticides/ may be absorbed through the respiratory & gastrointestinal tracts & through the skin, & whatever its route this absorption is facilitated by oily substances. /Chlorinated insecticides/
来源:Hazardous Substances Data Bank (HSDB)
吸收、分配和排泄
Metabolism studies in male and female Sprague Dawley rats used a single oral dose of 50 mg/kg of (14)C-dicofol. The radiolabel was eliminated mainly in the feces and to a lesser extent in the urine. The parent compound was preferentially stored in adipose tissue ...
对雄性和雌性Sprague Dawley大鼠进行的代谢研究使用了单次口服剂量为50毫克/千克的(14)C-百菌清。放射性标记主要通过粪便排出,少量通过尿液排出。母化合物优先储存在脂肪组织中...
Metabolism studies in male and female Sprague Dawley rats used a single oral dose of 50 mg/kg of (14)C-dicofol. The radiolabel was eliminated mainly in the feces and to a lesser extent in the urine. The parent compound was preferentially stored in adipose tissue ...
1.周国泰,化学危险品安全技术全书,化学工业出版社,1997 2.国家环保局有毒化学品管理办公室、北京化工研究院合编,化学品毒性法规环境数据手册,中国环境科学出版社.1992 3.Canadian Centre for Occupational Health and Safety,CHEMINFO Database.1998 4.Canadian Centre for Occupational Health and Safety, RTECS Database, 1989
Development of a Panel of Immunoassays for Monitoring DDT, Its Metabolites, and Analogues in Food and Environmental Matrices
摘要:
A panel of antisera was prepared using analogues and derivatives of metabolites of the organochlorine insecticide, p,p'-DDT as haptens. The assays developed exhibited differing cross-reactions for different DDT analogues and metabolites, and the choice of hapten for the detecting enzyme conjugate had almost as much effect on assay specificity and sensitivity as the structure of the hapten used for antibody production. Those assays developed using hapten I, based on esters of bis(p-chlorophenyl)acetic acid (DDA), typically detected DDA with greater sensitivity than p,p'-DDT or p,p'-DDE. The most sensitive assay for p,p'-DDT (lower limit of detection of 0.3 mu g/L) was obtained using an immunogen based on bis(p-chlorophenyl)ethanol (hapten IV), although a significant crossreaction with dichlorodiphenyltrichloroethane (DDD) and DDE was obtained. The most specific assay for p,p'-DDT was obtained using an immunogen (hapten VI) that includes all elements of the DDT structure, except that one of the p-chloro groups was replaced by beta-alanine carboxamide for coupling to carrier proteins. Antibodies based on a similar DDE hapten (V) exhibited specificity for p,p'-DDE over p,p'-DDT. Greater specificity and sensitivity for dicofol were obtained by using an immunogen derived from ester hydrolysis of chlorbenzilate (hapten II). The assays provided methods for detection of p,p'-DDT plus p,p'-DDE either by using the antibody raised to hapten IV with conjugate based on hapten Ib or by using the assay based on hapten V, with treatment of samples with warm alcoholic KOH, which converted DDT to DDE. Some of the immunoassays were applied to the detection of DDT and DDE in water, soil, and selected foods.
[EN] BICYCLYL-SUBSTITUTED ISOTHIAZOLINE COMPOUNDS<br/>[FR] COMPOSÉS ISOTHIAZOLINE SUBSTITUÉS PAR UN BICYCLYLE
申请人:BASF SE
公开号:WO2014206910A1
公开(公告)日:2014-12-31
The present invention relates to bicyclyl-substituted isothiazoline compounds of formula (I) wherein the variables are as defined in the claims and description. The compounds are useful for combating or controlling invertebrate pests, in particular arthropod pests and nematodes. The invention also relates to a method for controlling invertebrate pests by using these compounds and to plant propagation material and to an agricultural and a veterinary composition comprising said compounds.
The present invention relates to azoline compounds of formula (I) wherein A, B1, B2, B3, G1, G2, X1, R1, R3a, R3b, Rg1 and Rg2 are as defined in the claims and the description. The compounds are useful for combating or controlling invertebrate pests, in particular arthropod pests and nematodes. The invention also relates to a method for controlling invertebrate pests by using these compounds and to plant propagation material and to an agricultural and a veterinary composition comprising said compounds.
Compounds of the formula (I) wherein the substituents are as defined in claim 1, useful as a pesticides, especially fungicides.
式(I)的化合物,其中取代基如权利要求1所定义,作为杀虫剂特别是杀菌剂有用。
[EN] INSECTICIDAL TRIAZINONE DERIVATIVES<br/>[FR] DÉRIVÉS DE TRIAZINONE INSECTICIDES
申请人:SYNGENTA PARTICIPATIONS AG
公开号:WO2013079350A1
公开(公告)日:2013-06-06
Compounds of the formula (I) or (I'), wherein the substituents are as defined in claim 1, are useful as pesticides.
式(I)或(I')的化合物,其中取代基如权利要求1所定义的那样,可用作杀虫剂。
THIENYLPYRIDYLCARBOXAMIDES
申请人:Dunkel Ralf
公开号:US20110105564A1
公开(公告)日:2011-05-05
Novel thienylpyridylcarboxamides of the formula (I)
The present application is also directed to a plurality of processes for preparing these compounds and their use for controlling unwanted microorganisms, and also novel intermediates and their preparation.