Metribuzin , Analysis standard , 21087-64-9

CAS NO.：21087-64-9

Empirical Formula: C8H14N4OS

Molecular Weight: 214.29

MDL number: MFCD00055525

EINECS: 244-209-7

PRODUCT Properties

• 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)

Description and Uses

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%).

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.

Safety

• Symbol(GHS): GHS07,GHS09
• Signal word: Warning
• Hazard statements: H302-H410
• Precautionary statements: P264-P270-P273-P301+P312+P330-P391-P501
• 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)