WHMIS (o-Phthalaldehyde)

Workplace Hazardous Materials Information System

WHMIS 1988 classification - Note to reader
Update: 2006-06-05
  • WHMIS pictogram : Skull and crossbones

    D1B, D2B

  • Toxic Material Causing Immediate and Serious Toxic Effects 1
  • Acute lethality : LD50 oral (rat) = 121 mg/kg
  • Toxic Material Causing Other Toxic Effects 1
  • Eye irritation in animals; Skin irritation in animals


  • ▲1.  Johnson & Johnson Medical, Executive summary. Toxicological data for ortho-phthalaldehyde (OPA) (1,2-benzenedicarboxaldehyde).

The [number] refers to the ISST database of the CSST Documentation Center.