See All ProductsMCPB

Action

Herbicide

Use

A phenoxy compound used as a selective herbicide applied postemergence for control in green peas grown for canning or freezing; spring cereals undersown with clovers, seedling clovers, maize, pastures, sainfoin.

Formulation

Aqueous solution, soluble concentrate.

Identification

Common Names

MCPB (ISO, BSI, JMAF, WSSA); 2,4-MCPB (France); 2M-4CM (2М-4ХМ) (USSR)

CAS Code

94-81-5

Other Code Numbers

EINECS 202-365-3; SHA 019201

Chemistry

Compositions

4-(4-chloro-o-tolyloxy)butyric acid (IUPAC); 4-(4-chloro-2-methylphenoxy)butanoic acid (CAS)

Properties

White crystalline solid. Solubility: At 20°-25°C in ethanol 150 g/l; acetone >200 g/l.

Molecular Formula

C11H13ClO3

Mode of Action / Resistance Management

Chemical Group

phenoxy-carboxylic-acid

Mode of Action

action like indole acetic acid (synthetic auxins)

Action Group

HRAC Group O; WSSA Group 4

Environmental Guidelines

Hazard

Fish: LC50 75 mg/l (48 h) (rainbow trout). Bee: Nontoxic

Water Solubility

44 ppm

Safety Guidelines

Signal Word

CAUTION

Toxicity Class

III

Toxicity

(Rat): Oral LD50 700 mg/kg. Dermal LD50 >2000 mg/kg. (Mouse): Oral LD50 800 mg/kg

Handling/Storage Caution

Store above 32°F. If frozen, warm for several days and mix

Spill Control/Cleanup

Large spillages should be dammed-off and pumped into containers; soak up remainder with absorbent material and dispose of in accordance with local regulations