SPECTRUM

Chemical Fact Sheet

Chemical Abstract Number (CAS #) 101279
CASRN 101-27-9
SynonymsBarban
Carbyne
Carbamic acid, m-chloro, 4-chloro-2-butynyl ester
Analytical Method EPA Method 632
Molecular FormulaC11H9Cl2NO2

Link to the National Library of Medicine's Hazardous Substances
Database for more details on this compound.

Use SELECTIVE POST-EMERGENCE HERBICIDE FORMER USE HERBICIDE FOR CONTROL OF WILD OATS IN FIELD CROPS FOR POSTEMERGENCE CONTROL OF CANARYGRASS IN BARLEY, FLAX, LENTILS, MUSTARD (GROWN FOR OIL), PEAS, SAFFLOWER, SUGAR BEETS, WHEAT, SEMI-DWARF WHEAT, SUNFLOWER & SOYBEANS. FOR POSTEMERGENCE CONTROL OF ITALIAN RYEGRASS IN BARLEY, FLAX, LENTILS, MUSTARD (GROWN FOR OIL), PEAS, SAFFLOWER, SUGAR BEETS, WHEAT, SEMI-DWARF SUNFLOWER, AND SOYBEANS IN CALIFORNIA AND OREGON. FORMER USE
Consumption Patterns 100% AS AN HERBICIDE ON WHEAT (1975)
Apparent Color CRYSTALLINE SOLID; COLORLESS
Odor ODORLESS SOLID
Boiling Point Degrades before boiling
Melting Point 75-76 DEG C
Molecular Weight 258.11
Density Sp: 1.403 at 25 deg C/25 deg C
Sensitivity Data Irritant and dermal sensitizer.
Environmental Fate Decomposes within 28-38 days of the last plant spraying. TERRESTRIAL FATE: RESULTANT AVG PERSISTENCE @ RECOMMENDED RATES: DOWN TO TRACE AMT WITHIN 3 WK IN MOST SOILS. Terrestrial fate: Duration of residual activity in soil 2-3 months (at 3 kg/ha).

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