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Simetryn Herbicide

Posted at: Offers to Sell and Export | Posted on: Fri 18 Jun, 2010 8:10 am | Product Category: Herbicide services [53]
simetryn herbicide
Products Photos CatalogSimetryn Herbicide Photos Catalog

Common name: simetryn; simetryne

IUPAC name: N2, N4-diethyl-6-methylthio-1, 3, 5-triazine-2, 4-diamine;

2, 4-bis(ethylamino)-6-methylthio-1, 3, 5-triazine

Chemical Abstracts name: N, N'-diethyl-6-(methylthio)-1, 3, 5-triazine-2, 4-diamine

Cas rn: [1014-70-6]

Physical chemistry

Mol. wt.: 213.3; M.f.: C8H15N5S; Form: Whitish crystals. M.p.: 82-83 C; V.p.: 9.5x10-2 mPa (20 C). KOW: logP = 2.6 (calc., unionised). Henry: 5.07x10-5 Pa m3 mol-1 (calc.) S.g./density: 1.02; Solubility: In water 400 mg/l (20 C). In methanol 380, acetone 400, toluene 300, n-hexane 4, n-octanol 160 (all in g/l, 20 C). pKa: 4.0, weak base.


Biochemistry: Photosynthetic electron transport inhibitor at the photosystem II receptor site.

Mode of action: Selective herbicide.

Uses: Used in combination with thiobencarb to control broad-leaved weeds in rice.

Formulation types: GR.

Mammalian toxicology

Oral: Acute oral LD50 for rats 750-1195 mg/kg.

Skin and eye: Acute percutaneous LD50 for rats >3200 mg/kg. Not a skin or eye irritant (rabbits).

NOEL: (2 y) for rats 1.2 mg/kg daily (2.5 mg/kg b.w.), mice 56 mg/kg daily, dogs 10.5 mg/kg daily.

ADI: 0.025 mg/kg b.w. (provisional value).

Toxicity class: WHO (a.i.) III; EPA (formulation) III

EC hazard: Xn; R22| N; R50, R53


Fish: LC50 (96 h) for trout 7, guppy 5.2 ppm.

Algae: Toxic.

Bees: Non-toxic.

Environmental fate

Animals: DT50 in rats c. 10 h. Excreted in urine and faeces; two oxidative metabolic pathways.

Plants: Selectivity and metabolism of simetryn reviewed.

Company Contact:

No member photo
Contact Name: Kevin Xu
Company Name: Shanghai Skyblue Chemical Co., Ltd.
Email: Email
Tel: 86-21-58356613
Fax: 86-21-58358362
Street Address: Rm 15A02, Changhang
Mansion, No.800, Zhangyang Road,
Pudong, Shanghai, 200122, China
Website: http://www.skybluechem.com
Member name: skybluechem
Country: China-CN China
Member Since: 17 June 2010
Total Leads: 76 skybluechem Import Export Business Leads
Business focus: Piperonyl Butoxide, D-allethrin, Diethyltoluamide, Cartap, Tetramethrin, Atrazine, Quizalofop-p-ethyl, Tribenuron-methyl, Acetochlor, Ametryn, Simazine
Verify: Safe Import Export Tips
Product Category: Herbicide services [53]

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