Yellowish to colorless solid. Soluble in organic solvents. Used as an herbicide.
颜色/状态:
Colorless crystals
气味:
ODORLESS
闪点:
204 °C o.c.
蒸汽压力:
7.50X10-8 mm Hg at 20 °C
稳定性/保质期:
避免与氧化物接触。
分解:
When heated to decomposition it emits toxic chloride fumes.
腐蚀性:
CORROSIVE TO METALS IN PRESENCE OF WATER; CONCN SOLN (480 G AE/L) DOES NOT CORRODE IRON OR TIN PLATE OF IRON IF PH IS GREATER THAN OR EQUAL TO 8.6 & TEMP LESS THAN 70 °C.
解离常数:
pKa = 3.10
保留指数:
1756
计算性质
辛醇/水分配系数(LogP):
3.4
重原子数:
14
可旋转键数:
3
环数:
1.0
sp3杂化的碳原子比例:
0.222
拓扑面积:
46.5
氢给体数:
1
氢受体数:
3
ADMET
代谢
可能不被动物代谢。
Probably not metabolized by animals.
来源:Hazardous Substances Data Bank (HSDB)
代谢
在植物中,新陈代谢涉及侧链降解为2,4-二氯酚,环羟基化以及环开环。
In plants, metabolism involves degradation of the side-chain to 2,4-dichlorophenol, ring hydroxylation, and ring opening.
Degradation products of 2,4-DP-p include 2,4-dichlorophenol, 2,4- dichloroanisole, and carbon dioxide, which are all common degradates to 2,4-D. /2,4-DP-p/
CDDs are absorbed through oral, inhalation, and dermal routes of exposure. CDDs are carried in the plasma by serum lipids and lipoproteins, distributing mainly to the liver and adipose tissue. CDDs are very slowly metabolized by the microsomal monooxygenase system to polar metabolites that can undergo conjugation with glucuronic acid and glutathione. They may increase the rate of their own metabolism by inducing CDDs induce both phase I and phase II enzymes. The major routes of excretion of CDDs are the bile and the feces, though smaller amounts are excreted in the urine and via lactation. (L177)
CDDs cause their toxic effects by binding to the aryl hydrocarbon receptor and subsequently altering the trascription of certain genes. The affinity for the Ah receptor depends on the structure of the specific CDD. The change in gene expression may result from the direct interaction of the Ah receptor and its heterodimer-forming partner, the aryl hydrocarbon receptor nuclear translocator, with gene regulatory elements or the initiation of a phosphorylation/dephosphorylation cascade that subsequently activates other transcription factors. The affected genes include several oncogenes, growth factors, receptors, hormones, and drug-metabolizing enzymes. The change in transcription/translation of these genes is believed to be the cause of most of the toxic effects of CDDs. This includes 2,3,7,8-tetrachlorodibenzo-p-dioxin's carcinogenicity is thought to be the result of its ability to alter the capacity of both exogenous and endogenous substances to damage the DNA by inducing CYP1A1- and CYP1A2-dependent drug-metabolizing enzymes. (L177)
It is considered to be a severe eye irritant. There has been concern that chlorophenoxy herbicides including dichlorprop may cause cancer, and in 1987 the International Agency for Research on Cancer (IARC) ranked this class of compounds as group 2B "possibly carcinogenic to humans". The EPA classifies the R-isomer as “Not Likely to be Carcinogenic to Humans.”(L369) Exposure to large amounts of CDDs causes chloracne, a severe skin disease with acne-like lesions that occur mainly on the face and upper body. CDDs may also cause liver damage and induce long-term alterations in glucose metabolism and subtle changes in hormonal levels. In addition, studies have shown that CDDs may disrupt the endocrine system and weaken the immune system, as well as cause reproductive damage and birth defects, central and peripheral nervous system pathology, thyroid disorders, endometriosis, and diabetes. 2,3,7,8-Tetrachlorodibenzo-p-dioxin is also a known human carcinogen. (L177, L178)
来源:Toxin and Toxin Target Database (T3DB)
毒理性
暴露途径
这种物质可以通过摄入被身体吸收。
The substance can be absorbed into the body by ingestion.
来源:ILO-WHO International Chemical Safety Cards (ICSCs)
毒理性
症状
除了氯痤疮,二噁烷暴露还会导致皮肤皮疹、色素沉着和体毛过度生长。
In addition to chloracne, CDD exposure causes skin rashes, discoloration, and excessive body hair. (L177)
来源:Toxin and Toxin Target Database (T3DB)
吸收、分配和排泄
长时间接触溶液可能导致皮肤吸收...。
Dermal absorption can occur on prolonged contact of the soln with the skin ... .
来源:Hazardous Substances Data Bank (HSDB)
吸收、分配和排泄
被叶子吸收,并转移到根部。
Absorbed by the leaves, with translocation to the roots.
来源:Hazardous Substances Data Bank (HSDB)
吸收、分配和排泄
Dichlorprop ... 已在接触过该物质的农民和喷洒人员的尿液中检测到。
Dichlorprop ... has been detected in the urine of exposed farmers and spraymen.
... (14)C-2,4-DP-p ( ... purity 99.3% ai; (phenyl-U-(14)C)-labeled) was admin to Wistar rats (5/sex/dose) via gavage at a single dose of 5 or 100 mg/kg or a single dose of 5 mg/kg following a 14-day pretreatment with unlabeled 2,4-DP-p at 5 mg/kg/day. For each dosing regimen, (14)C-2,4-DP-p was readily absorbed by rats following oral dosing with max plasma concn being attained within 2 to 5 hr of dosing. The total recovery of dosed radioactivity was 91 to 100% within 120 hr of oral dosing at 5 mg/kg as either a single dose or a single dose following pretreatment ... The total recovery of dosed radioactivity was 100 to 102% within 168 hr of oral dosing at 100 mg/kg. For all three dosing regimens, 87 to 96% of the dose was recovered in urine, cage washing, and cage debris. Fecal elimination accounted for 4 to 12% of the dose. There were no apparent differences in elimination between the sexes or among the groups. The levels of radioactivity in tissues were insignificant. Following a single dose of (14)C-2,4-DP-p at 5 mg/kg, a mean peak plasma concn was calculated to be 19.4 and 26.2 ug equiv/g for male and female rats, respectively. A peak plasma concn was reached in 2.4 and 2.7 hr for male and female rats, respectively. The mean t1/2 of elimination was 4.4 hr (male) and 14.8 hr (female). The area under concentration vs time curve (AUC) value was 114 and 130 ug equiv hr/g for male and female rats, respectively. Plasma concn in male and female rats declined rapidly during the first 24 hr and thereafter plasma concn in both sexes were negligible. Following a single dose of (14)C-2,4-DP-p at 100 mg/kg, a mean peak plasma concn was calculated to be 412 and 425 ug equiv/g for male and female rats, respectively. A peak plasma concn was reached in 5.4 and 4.2 hr for male and female rats, respectively. The mean t1/2 of elimination was 16.5 hr (male) and 6.6 hr (female). The AUC value was 9655 and 6109 ug equiv hr/g for male and female rats, respectively. Plasma concn in male and female rats declined rapidly during the first 24 and 48 hr, respectively and thereafter plasma concn declined slowly. In both male and female rats 1 hr after dosing, plasma (26 to 27 ug/g), blood (15 to 16 ug/g), heart (7 to 8 ug/g), lung (6 to 9 ug/g), liver (7 to 8 ug/g), kidney (29 to 34 ug/g), thyroid (17 to 37 ug/g), and adrenals (7 ug/g) contained relatively higher concn of radioactivity. In female rats, gonads (10 ug/g) and uterus (8 ug/g) also contained higher concn of radioactivity. All other tissues contained less than 5 ug equiv/g. The levels of radioactivity at 3 hr after dosing in male and female rats were comparable to the levels at 1 hr after dosing. The levels of radioactivity in most tissues at 6 hr after dosing were less than the levels at 1 hr after dosing. The results of the TLC and HPLC analyses on pooled urine (0 to 6 hr) from Groups A, B and C showed that the majority of the admin dose in the urine samples was identified as unchanged parent cmpd which represented 14.11 to 32.6, 6.16 to 24.8 and 1.68 to 5.65% of the admin dose in dose groups A, B and C, respectively. The chromatograms from 6 to 12 and 12 to 24 hr pooled urine samples showed parent cmpd only. In the 0 to 6 hr urine samples, there were up to 5 minor unknown components but none of them accounted for more than 1% of the admin dose. The results of the HPLC analyses of 0 to 24 hr fecal samples (groups A and B) and 0 to 48 hr fecal samples (group C) showed that the major component in the feces was identified as unchanged parent cmpd. The amt of unchanged parent eliminated in the feces represented 2 to 7% of the admin dose in dose groups A, B and C. In the 0 to 24 hr fecal samples, there were up to 5 minor unknown components but none of them accounted for more than 1% of the admin dose. /2,4-DP-p/
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
Estimation of dioxin emission from fires in chemicals
摘要:
The formation of the 17 toxic 2,3,7,8-substituted PCDDs and PCDFs during combustion of selected chemicals were measured by high-resolution GC/MS. The 16 chemicals studied were commonly used chlorinated pesticides, industrial chemicals, and PVC. In a series of experiments carried out in a DIN 53,436 furnace, 2.5 g of these compounds were burned at 500 degrees C and 900 degrees C, respectively. The resultant yields ranged from 740 ng ITEQ/g for pentachlorophenol, to below 0.01 ng ITEQ/g for PVC and dichlobenil. The results show that some chemicals generate PCDD/F in very high possibly dangerous - amounts during burning, whereas others generate insignificant amounts. The influence of scale were studied for chlorobenzene and 4-chloro-3-nitro-benzoic acid in additional experiments, carried out in a cone calorimeter burning 20 g substance, and in ISO 9705 room test burning about 50 kg. A good agreement between the results for large and small scale indicated that formation of PCCD/F during a fire may be estimated from laboratory experiments. This suggest laboratory test may be used to screen for chemicals posing a hazard for release of PCDD/F during fires. (C) 1999 Elsevier Science Ltd. All rights reserved.
[EN] ACC INHIBITORS AND USES THEREOF<br/>[FR] INHIBITEURS DE L'ACC ET UTILISATIONS ASSOCIÉES
申请人:GILEAD APOLLO LLC
公开号:WO2017075056A1
公开(公告)日:2017-05-04
The present invention provides compounds I and II useful as inhibitors of Acetyl CoA Carboxylase (ACC), compositions thereof, and methods of using the same.
[EN] 3-[(HYDRAZONO)METHYL]-N-(TETRAZOL-5-YL)-BENZAMIDE AND 3-[(HYDRAZONO)METHYL]-N-(1,3,4-OXADIAZOL-2-YL)-BENZAMIDE DERIVATIVES AS HERBICIDES<br/>[FR] DÉRIVÉS DE 3-[(HYDRAZONO))MÉTHYL]-N-(TÉTRAZOL-5-YL)-BENZAMIDE ET DE 3-[(HYDRAZONO)MÉTHYL]-N-(1,3,4-OXADIAZOL-2-YL)-BENZAMIDE UTILISÉS EN TANT QU'HERBICIDES
申请人:SYNGENTA CROP PROTECTION AG
公开号:WO2021013969A1
公开(公告)日:2021-01-28
The present invention related to compounds of Formula (I): or an agronomically acceptable salt thereof, wherein Q, R2, R3, R4, R5 and R6 are as described herein. The invention further relates to compositions comprising said compounds, to methods of controlling weeds using said compositions, and to the use of compounds of Formula (I) as a herbicide.
[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。
[EN] HERBICIDALLY ACTIVE HETEROARYL-S?BSTIT?TED CYCLIC DIONES OR DERIVATIVES THEREOF<br/>[FR] DIONES CYCLIQUES SUBSTITUÉES PAR HÉTÉROARYLE À ACTIVITÉ HERBICIDE OU DÉRIVÉS DE CELLES-CI
申请人:SYNGENTA LTD
公开号:WO2011012862A1
公开(公告)日:2011-02-03
The invention relates to a compound of formula (I), which is suitable for use as a herbicide wherein G is hydrogen or an agriculturally acceptable metal, sulfonium, ammonium or latentiating group; Q is a unsubstituted or substituted C3-C8 saturated or mono-unsaturated heterocyclyl containing at least one heteroatom selected from O, N and S, or Q is heteroaryl or substituted heteroaryl; m is 1, 2 or 3; and Het is an optionally substituted monocyclic or bicyclic heteroaromatic ring; and wherein the compound is optionally an agronomically acceptable salt thereof.
The present invention provides triazole compounds useful as inhibitors of Acetyl CoA Carboxylase (ACC), compositions thereof, and methods of using the same.