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Metribuzin

Product Name
Metribuzin
CAS No.
21087-64-9
Chemical Name
Metribuzin
Synonyms
Metribuzine;4-Amino-6-tert-butyl-3-(methylsulfanyl)-1,2,4-triazin-5(4H)-one;1,2,4-Triazin-5(4H)-one,4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-(9CI);ntn70;LEXONE;salute;SENCOR;Zenkor;Zizine;MISTRAL
CBNumber
CB6690573
Molecular Formula
C8H14N4OS
Formula Weight
214.29
MOL File
21087-64-9.mol
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Metribuzin Property

Melting point:
125°C
Boiling point:
132 °C(Press: 0.02 Torr)
Density 
1.28
refractive index 
1.6390 (estimate)
Flash point:
2 °C
storage temp. 
APPROX 4°C
solubility 
DMSO (Slightly), Methanol (Slightly)
pka
-0.16±0.20(Predicted)
form 
Solid
color 
White
Odor
mild odor
Water Solubility 
Slightly soluble
BRN 
746650
Exposure limits
NIOSH REL: 5 mg/m3; ACGIH TLV: TWA 5 mg/m3.
NIST Chemistry Reference
Metribuzin(21087-64-9)
EPA Substance Registry System
Metribuzin (21087-64-9)
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Safety

Hazard Codes 
Xn;N,N,Xn,F
Risk Statements 
22-50/53-36-20/21/22-11
Safety Statements 
2-60-61-36-26-16-36/37
RIDADR 
UN3077 9/PG 3
OEB
B
OEL
TWA: 5 mg/m3
WGK Germany 
3
RTECS 
XZ2990000
HazardClass 
9
PackingGroup 
III
HS Code 
29336990
Hazardous Substances Data
21087-64-9(Hazardous Substances Data)
Toxicity
LD50 orally in rats: 2200 mg/kg; LC50 in rainbow trout: >10 ppm (Loeser, Kimmerle)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P273Avoid release to the environment.

P391Collect spillage. Hazardous to the aquatic environment

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
36165
Product name
Metribuzin
Purity
PESTANAL?, analytical standard
Packaging
100mg
Price
$47.5
Updated
2024/03/01
TRC
Product number
M338920
Product name
Metribuzin
Packaging
500mg
Price
$105
Updated
2021/12/16
Usbiological
Product number
283207
Product name
Metribuzin
Packaging
250mg
Price
$355
Updated
2021/12/16
TRC
Product number
M338920
Product name
Metribuzin
Packaging
10g
Price
$460
Updated
2021/12/16
Matrix Scientific
Product number
135484
Product name
4-Amino-6-tert-butyl-3-methylsulfanyl-4H-[1,2,4]triazin-5-one
Purity
95%+
Packaging
1g
Price
$524
Updated
2021/12/16
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Metribuzin Chemical Properties,Usage,Production

Description

Metribuzin is a colorless crystalline solid witha mild sulfurous odor; Freezing/Melting point =125- -127*C; Vapor pressure=4X 10-7 mmHg. SlightlyDescription: Metribuzin is a colorless crystalline solid witha mild sulfurous odor; Freezing/Melting point =125- -127*C; Vapor pressure=4X 10-7 mmHg. Slightlysoluble in water. Available in different concentrations (4%,50%, 75%).50%, 75%).

Chemical Properties

White Solid

Chemical Properties

Metribuzin is a colorless crystalline solid. Commercial product may be a flammable solution. Mild, sulfurous odor.

Uses

Selective herbicide used for preemergence broad-leaved weed control in potatoes, tomatoes, lucerne, raspberry and sugarcane, and postemergence weed control in beets. Also used for selective control of annual grasses.

Uses

Herbicide.

Uses

Metribuzin is an is an aminotriazinone herbicide used in agriculture for both pre- and post-emergence in crops including soy bean, potatoes, tomatoes and sugar cane. Metribuzin acts by inhibiting phot osynthesis by disrupting photosystem II.

Definition

ChEBI: A member of the class of 1,2,4-triazines that is 1,2,4-triazin-5(4H)-one substituted by an amino group at position 4, tert-butyl group at position 6 and a methylsulfanyl group at position 3.

General Description

Colorless crystalline solid. Used as an herbicide. Non corrosive.

Reactivity Profile

A triazine derivative. Amines are chemical bases. They neutralize acids to form salts plus water. These acid-base reactions are exothermic. The amount of heat that is evolved per mole of amine in a neutralization is largely independent of the strength of the amine as a base. Amines may be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen is generated by amines in combination with strong reducing agents, such as hydrides.

Hazard

Toxic material. Liver damage and hemato-logic effects. Questionable carcinogen.

Health Hazard

Low to moderate acute toxicity; single highdose may cause depression of central nervoussystem; repeated high doses affect thyroidand stimulate the metabolizing liver enzymes(ACGIH) 1986; excretes out rapidly; noirritant action on skin or eye; no teratogenic,mutagenic or carcinogenic effect observed inanimal studies.
LD50 oral (rat): 1100 mg/kg
LD50 oral (mouse): 698 mg/kg
LD50 oral (guinea pig): 250 mg/kg
LD50 skin (rat): 2000 mg/kg.

Agricultural Uses

Herbicide: Metribuzin is a selective triazine herbicide which inhibits photosynthesis of susceptible plant species. It is used for control of annual grasses and numerous broadleaf weeds in asparagus, potatoes, lucerne, peas, lentils, soya beans, sugar cane, sainfoin, pineapples and cereals. It is applied to fallow lands. Metribuzin is available as liquid suspension, water dispersible granular, and dry flowable formulations.

Trade name

AUTHORITY®; AXIOM® Metribuzin; BAY 61597®; BAY DIC 1468®; BAYER 6159H®; BAYER 6443H®; BAYER 94337®; BOUNDARY®; CANOPY®; CONQUEST®; DIC 1468®; DOMAIN®; LEXONE®; LEXONEEX®; PREVIEW®[C]; PYTHON®; SENCOR®; SENCORAL®; SENCOREX®; SENCORER®; VAPCOR®

Safety Profile

Poison by ingestion and intraperitoneal routes. Low toxicity by skin contact. When heated to decomposition it emits very toxic fumes of NOx and SOx.

Potential Exposure

A potential danger to those involved in manufacture, formulation, and application of this herbicide. A laboratory chemical. Used to make other chemicals.

First aid

If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least15 min, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts theskin, remove contaminated clothing and wash immediatelywith soap and water. Seek medical attention immediately. Ifthis chemical has been inhaled, remove from exposure,begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR ifheart action has stopped. Transfer promptly to a medicalfacility. When this chemical has been swallowed, get medical attention. Give large quantities of water and inducevomiting. Do not make an unconscious person vomit.

Environmental Fate

Soil. In soils, metribuzin undergoes deamination and further degradation forming water soluble conjugates (Hartley and Kidd, 1987). Metribuzin degrades rapidly in soil (Kempson- Jones and Hance, 1979; LaFleur, 1980). The half-lives in soil ranged from 4 to 9 weeks at 22°C and 60% moisture content to 9 to 11 weeks at 10°C and 10% moisture content. The highest half-life reported ranged from 15 to 43 weeks in a soil having 60% moisture content maintained at 10°C (Kempson-Jones and Hance, 1979).
The dissipation rates (day–1) for metribuzin on Hillsdale silty loam, Cecil silty loam, Regina heavy clay, Melfort clay loam and White City silt loam were 0.013-0.017, 0.055- 0.131, >0.017, >0.0016 and >0.023, respectively.
Groundwater. According to the U.S. EPA (1986) metribuzin has a high potential to leach to groundwater.
Plant. Metribuzin is metabolized in soybean plants to a deaminated diketo derivative which is nonphytoxic (Duke et al., 1991).
Photolytic. The simulated sunlight (l >230 nm) photolysis as a thin film on silica gel or sand yielded 6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5-(4H)-one and two additional photoproducts. In both of the unnamed photoproducts, the methylthio group in the parent compound is replaced by oxygen and one of the compounds also underwent N-deamination (Bartl and Korte, 1975).
Chemical/Physical. Emits toxic fumes of nitrogen and sulfur oxides when heated to decomposition (Lewis, 1990).

storage

Color Code—Blue: Health Hazard/Poison: Storein a secure poison location. Store in tightly closed containers in a cool, dry area.

Shipping

UN2763 Triazine pesticides, solid, toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous materials.

Incompatibilities

Liquid is incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides.

Waste Disposal

In accordance with 40CFR165, follow recommendations for the disposal of pesticides and pesticide containers. Must be disposed properly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office. Use a licensed professional waste disposal service to dispose of this material. Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed.

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Metribuzin Suppliers

J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
94657
Advantage
76
Chemsky(shanghai)International Co.,Ltd.
Tel
021-50135380
Email
shchemsky@sina.com
Country
China
ProdList
32321
Advantage
50
Syntechem Co.,Ltd
Tel
Fax
E-Mail Inquiry
Email
info@syntechem.com
Country
China
ProdList
12984
Advantage
57
Sichuan Kulinan Technology Co., Ltd
Tel
400-1166-196 18981987031
Fax
028-84555506 800101999
Email
cdhxsj@163.com
Country
China
ProdList
11707
Advantage
57
Maya High Purity Chemicals
Tel
+86 (573) 82222445 (0)18006601000 452520369
Fax
+86 (573) 82222643
Email
sales@maya-r.com
Country
China
ProdList
11707
Advantage
57
Spectrum Chemical Manufacturing Corp.
Tel
021-021-021-67601398-809-809-809 15221380277
Fax
021-57711696
Email
marketing_china@spectrumchemical.com
Country
China
ProdList
9658
Advantage
60
Dalian Meilun Biotech Co., Ltd.
Tel
0411-62910999 13889544652
Email
meilunui@163.com
Country
China
ProdList
4727
Advantage
58
Chengdu Ai Keda Chemical Technology Co., Ltd.
Tel
4008-755-333 18080918076
Fax
028-86757656
Email
800078821@qq.com
Country
China
ProdList
9718
Advantage
55
Shanghai Aladdin Bio-Chem Technology Co.,LTD
Tel
400-400-6206333 18521732826
Fax
021-50323701
Email
market@aladdin-e.com
Country
China
ProdList
25003
Advantage
65
The future of Shanghai Industrial Co., Ltd.
Tel
021-61552785
Fax
021-55660885
Email
sales@shshiji.com
Country
China
ProdList
9545
Advantage
55
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View Lastest Price from Metribuzin manufacturers

qingdao trust agri chemical co.,ltd
Product
metribuzin 21087-64-9
Price
US $0.00/kg
Min. Order
1kg
Purity
99
Supply Ability
20tons
Release date
2024-07-25
Guangzhou Biocar Biotechnology Co.,Ltd.
Product
Metribuzin 21087-64-9
Price
US $1.00/g
Min. Order
10g
Purity
99.5%
Supply Ability
1000kg
Release date
2022-01-14
Zhuozhou Wenxi import and Export Co., Ltd
Product
Metribuzin 21087-64-9
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-07-10

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