post number at every phone. - **Poison Control (US): 1-800-222-1222** - **Local emergency:** 911 (US), 112 (EU), 999 (UK). - **Chemical Spill / HazMat:** institutional EHS first; CHEMTREC (1-800-424-9300, US) for transport-related. - **SDS access:** Sigma-Aldrich, MilliporeSigma, Fisher, TCI all mai