Hydrogen cyanide

CAS RN: 74-90-8

OSHA Standards

Permissible Exposure Limit: Table Z-1 8-hr Time-Weighted Avg: 10 ppm (11 mg/cu m). Skin Designation.
Vacated 1989 OSHA PEL STEL 4.7 ppm (5 mg/cu m), skin designation, is still enforced in some states.
Find more information on this substance at: PubChem, PubMed