① Health hazards

　　Invasion route: inhalation, ingestion and percutaneous absorption.

　　Health hazard: This product is a mild irritant and anesthetic. After inhalation, it may cause headache, dizziness, weakness, nausea, dyspnea, etc. Liquid or high concentration vapor is irritating. Oral irritation of the gastrointestinal tract. Long term repeated skin contact is irritating.

　　② Toxicological data and environmental behavior

　　Toxicity: It is estimated that it can enter the body through the gastrointestinal tract, skin and respiratory tract, showing moderate toxicity. Irritating than dimethyl carbonate.

　　Acute toxicity: LD501570mg/kg (rat oral); People inhale 20mg/L (steam) × 10 minutes, tears and nasal mucosa irritation.

　　Reproductive toxicity: the abdominal cavity of hamster is 11.4mg/kg (pregnant rat), which has obvious teratogenic effect.

　　Hazard characteristics: It is flammable and may cause combustion in case of open fire and high heat. Its vapor is heavier than air, and can spread to a relatively far place at a lower place. It will ignite when encountering open fire.

　　Combustion (decomposition) products: carbon monoxide and carbon dioxide.

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