(Trimethylsilyl)diazomethane, ca. 2M solution in diethylether

2.1 Classification of the substance or mixture

This chemical is considered hazardous by the 2012 OSHA Hazard Communication Standard (29 CFR 1910.1200) Flammable liquids Category 1 Acute oral toxicity Category 4 Acute Inhalation Toxicity - Vapors Category 2 Carcinogenicity Category 1B Specific target organ toxicity (single exposure) Category 3 Target Organs - Central nervous system (CNS), Respiratory system. Specific target organ toxicity - (repeated exposure) Category 1 Target Organs - Liver.

Signal word

Danger

Hazard statements

Extremely flammable liquid and vapor Harmful if swallowed Fatal if inhaled May cause respiratory irritation May cause drowsiness or dizziness May cause cancer Causes damage to organs through prolonged or repeated exposure

Prevention

Obtain special instructions before use Do not handle until all safety precautions have been read and understood Use personal protective equipment as required Wash face, hands and any exposed skin thoroughly after handling Do not eat, drink or smoke when using this product Do not breathe dust/fume/gas/mist/vapors/spray Use only outdoors or in a well-ventilated area Wear respiratory protection Keep away from heat/sparks/open flames/hot surfaces. - No smoking Keep container tightly closed Ground/bond container and receiving equipment Use explosion-proof electrical/ventilating/lighting equipment Use only non-sparking tools Take precautionary measures against static discharge Keep cool

Response

IF exposed or concerned: Get medical attention/advice Inhalation IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing Immediately call a POISON CENTER or doctor/physician Skin IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower Ingestion IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell Rinse mouth Fire In case of fire: Use CO2, dry chemical, or foam for extinction

Storage

Store locked up Store in a well-ventilated place. Keep container tightly closed

Disposal

Dispose of contents/container to an approved waste disposal plant

2.3 Other hazards

May form explosive peroxides Repeated exposure may cause skin dryness or cracking