Propham

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Chemical Identification | General Product Information | Physical & Safety Data

Chemical Identification

Common Name

Propham

中文通用名

苯胺灵

IUPAC

isopropyl carbanilate
or
isopropyl phenylcarbamate

CAS

1-methylethyl phenylcarbamate

CAS No.

122-42-9

Molecular Formula

C₁₀H₁₃NO₂

Molecular Structure

General Product Information

Category

Plant growth regulators > Growth inhibitors
Herbicides > Carbanilate herbicides

Activity

Herbicide, plant growth regulator

Premix

Dust, flowable suspension, wettable powder.
Premix Parters: copper oxychloride; copper oxychloride triadimefon; cymoxanil; cymoxanil triadimefon; iprovalicarb; oxadixyl; triadimefon;

Physical & Safety Data

Physical Properties

Molecular weight:179.2; Physical form:Colourless crystals. Density:1.09 (20 °C); Composition:Tech. grade is 99% pure. Melting point:87.0-87.6 °C; ( tech., 86.5-87.5 °C); Vapour pressure:Considerable at 85 °C (sublimes slowly at room temperature); Solubility:In water 250 mg/l (20 °C). Soluble in esters, alcohols, acetone, benzene, cyclohexane and xylene.; Stability:Stable up to 100 °C. Not sensitive to light. Hydrolysed slowly in acidic and alkaline media.

Toxicology

Tech (Rat): Oral LD₅₀ >5000 mg/kg. Dermal LD₅₀ >5000 mg/kg.

Environmental Profile

Ecotoxicology:
Algae: EC₅₀ (cell volume) for Chlorella fusca 111µmol/l (Pestic. Sci., 47, 337 (1996)).Bees:Not hazardous to bees when used as recommended.Birds:Acute oral LD₅₀ for mallard ducks >2000 mg/ kg.Fish: LC₅₀ (48 h) for bluegill sunfish 32, guppies 35 mg/l.

Environmental fate:
Animals:In mammals, the major metabolic route is N-oxidation to hydroxy-IPC.Soil:In soil, readily degraded by micro-organisms, with enzymic hydrolysis of the ester bond and degradation of the unstable N-phenylcarbamic acid to aniline and CO₂, with further microbial degradation of aniline. DT₅₀N-2-hydroxycarbanilate, which is found as water-soluble conjugates of glucose or other plant components. WATER SOLUBILITY: 0.25 g/l at 20°C

Transport Information

Signal Word:CAUTION; Hazard Class:III(Slightly hazardous)