Cell Signaling Technology, Inc

2.1 Classification of the substance or mixture

This substance/mixture is considered hazardous by the 2012 OSHA Hazard Communication Standard (29 CFR 1910.1200)

Hazard statements

_____________________________________________________________________________________________ Cell Signaling Technology, Inc. Page 1 / 7 www.cellsignal.com 13844 - Calcein AM Revision Date: 2014-06-25 13844 - Calcein AM _____________________________________________________________________________________________ Revision Date: 2014-06-25 _____________________________________________________________________________________________ Causes skin irritation Causes serious eye irritation SECTION 5. Fire-fighting measures May cause respiratory irritation

Precautionary statements

Extinguishing media Avoid breathing dust Suitable Extinguishing Media Wash face, hands and any exposed skin thoroughly after handling Use extinguishing measures that are appropriate to local circumstances and the Wear eye/face protection surrounding environment. Use only outdoors or in a well-ventilated area Unsuitable Extinguishing Media CAUTION: Use of water spray when fighting fire may be inefficient. IF ON SKIN: Wash with plenty of soap and water If skin irritation occurs: Get medical advice/attention Specific hazards arising from the chemical Take off contaminated clothing and wash before reuse No information available. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing If eye irritation persists: Get medical advice/attention IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing Explosion Data Call a POISON CENTER or doctor/physician if you feel unwell Sensitivity to Mechanical Impact None. Store in a well-ventilated place. Keep container tightly closed Sensitivity to Static Discharge Store locked up None. Dispose of contents/container to an approved waste disposal plant Protective Equipment and Precautions for Firefighters Supplementary Hazard Information As in any fire, wear self-contained breathing apparatus pressure-demand, MSHA/NIOSH (approved or equivalent) and full

2.3 Other hazards

None protective gear. SECTION 6. Accidental release measures