3-(4-클로로페닐)-1,1-디메틸요소

3-(4-클로로페닐)-1,1-디메틸요소 속성

3-(4-클로로페닐)-1,1-디메틸요소 C화학적 특성, 용도, 생산

화학적 성질

White, crystalline solid; odorless. Very low solubility in water and hydrocarbonsolvents; slightly soluble in oils; partially soluble inalcohols; stable toward oxidation and moisture.

용도

Monuron may be used as a reference standard in the determination of monuron in rice and corn using high performance liquid chromatography coupled with fluorescence detection combined with ultraviolet decomposition and post-column derivatization.

정의

ChEBI: A member of the class of ureas that is urea in which one of the nitrogens is substituted by a p-chlorophenyl group while the other is substituted by two methyl groups.

일반 설명

White crystalline solid or white powder with a slight odor. Melting point 175°C. Moderately toxic by ingestion. Used as an herbicide.

공기와 물의 반응

Insoluble in water. Is hydrolyzed slowly by acids and alkalis, and more rapidly on heating .

반응 프로필

MONURON is a chlorinated urea derivative. May react with azo and diazo compounds to generate toxic gases. May react with strong reducing agents to generate flammable gases. Reacts as a weak base. Combustion generates mixed oxides of nitrogen (NOx).

위험도

Questionable carcinogen.

건강위험

Toxic properties are similar to Diuron; hydro-lyzes under acidic or alkaline conditions top-chloroaniline, which can cause anemia andmethemoglobinemia; LD50 data published inthe literature differ; acute and chronic tox-icity of this herbicide is probably of loworder; no reported case of human poisoning; showed clear evidence of carcinogenicity in male F344/N rats fed diets containing 750 ppm monuron for 2 years; causedcancers in the kidney and liver (NationalToxicology Program 1988); female rats andmale and female mice (B6C3F1) showed noevidence; induced cytomegaly of the renalepithelial cells in rats.
LD50 oral (rat): 3700 mg/kg (Bailey andWhite, 1965)
LD50 oral (rat): 1053 mg/kg (Lewis 1995).

화재위험

Flash point data for MONURON are not available; however, MONURON is probably combustible.

Safety Profile

Moderately toxic by ingestion, intraperitoneal, and possibly other routes. Experimental teratogenic and reproductive effects. Questionable carcinogen with experimental carcinogenic data. Mutation data reported. An herbicide. When heated to decomposition it emits very toxic fumes of NOx and Cl-.

환경귀착

Biological. Monuron was mineralized in sewage samples obtained from a water treatment plant in Ithica, NY. (4-Chlorophenyl)urea and 4-chloroaniline were tentatively identified as metabolites (Wang et al., 1985).
Soil/Plant. In soils and plants, monuron is demethylated at the terminal nitrogen atom coupled with ring hydroxylation forming 3-(2-hydroxy-4-chlorophenyl)urea and 3-(3- hydroxy-4-chlorophenyl)urea (Hartley and Kidd, 1987). Walln?efer et al. (197
Photolytic. When an aqueous solution of monuron was exposed to sunlight or simulated sunlight, the major degradative pathways observed were the photooxidation and demethylation of the N-methyl groups (Crosby and Tang, 1969; Tanaka et al., 1982a),
Tanaka et al. (1981) studied the photolysis of monuron in dilute aqueous solutions in order to fully characterize a substituted diphenylamine that was observed in an earlier investigation (Tanaka et al., 1977). They identified this compound as an isomeric mixture containing 92% 2-chloro-4￠,5-bis(N￠,N￠-dimethylureido)biphenyl and 8% 5-chloro-2,4￠- bis(N￠,N￠-dimethylureido)biphenyl (Tanaka et al., 1981).
Tanaka et al. (1982) undertook a study to identify the several biphenyls formed in earlier photolysis studies (Tanaka et al., 1979, 1981). They identified these compounds as 2,4￠-, 3,4￠- and 4,4￠-bis-(N￠,N￠-dimethylureido)biphenyls (fenuron biphenyls) (Ta

Purification Methods

Crystallise monuron from MeOH. [Beilstein 12 IV 1191.]

3-(4-클로로페닐)-1,1-디메틸요소 준비 용품 및 원자재

원자재

준비 용품

3-(4-클로로페닐)-1,1-디메틸요소 공급 업체

공급자	전화	이메일	국가	제품 수	이점
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21691	55
Hangzhou FandaChem Co.,Ltd.	008657128800458; +8615858145714	fandachem@gmail.com	China	9348	55
Hubei Jusheng Technology Co.,Ltd.	18871490254	linda@hubeijusheng.com	CHINA	28180	58
Hubei xin bonus chemical co. LTD	86-13657291602	linda@hubeijusheng.com	CHINA	22968	58
Chongqing Chemdad Co., Ltd	+86-023-61398051 +8613650506873	sales@chemdad.com	China	39916	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49390	58
career henan chemical co	+86-0371-86658258 15093356674;	factory@coreychem.com	China	29826	58
Hefei TNJ Chemical Industry Co.,Ltd.	0551-65418671	sales@tnjchem.com	China	34572	58
Hebei Duling International Trade Co. LTD	+8618032673083	sales05@hbduling.cn	China	15745	58
GIHI CHEMICALS CO.,LIMITED	+8618058761490	info@gihichemicals.com	China	49999	58

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