Chemical Name2,3,7,8-Tetrachlorodibenzo-p-dioxin
Synonym(s)2,3,7,8-TCDD | 2,3,7,8-Tetrachloro-p-dioxin | 2,3,7,8-Tetrachlorodibenzo-1,4-dioxin | 2,3,7,8-Tetrachlorodibenzo[b,e][1,4]dioxin | 2,3,7,8-Tetrachlorodibenzodioxin | D 48 | Dibenzo-p-dioxin, 2,3,7,8-tetrachloro- | Dibenzo[b,e][1,4]dioxin, 2,3,7,8-tetrachloro- | Dioxin | Dioxin (herbicide contaminant) | PCDD 48 | TCDBD | TCDD | Tetrachlorodibenzo-p-dioxin | Tetrachlorodibenzodioxin
Category MemberN150: Dioxin and dioxin-like compounds
De minimis Limit %*
The de minimis exemption is not available for this chemical
De minimis NotesThe de minimis exemption is not available for this chemical
M,P/OU Threshould (lb)0.1 gram/0.1 gram
Listing TypeChemical category member
Effective Date01-JAN-00
Chemical QualifierNo
Chemical of Special ConcernYes
Per- or Polyfluoroalkyl SubstanceNo

Rulemaking Changes Affecting This Chemical

StatusEffective Reporting YearFR Proposed RuleFR Final Rule
Added to category200062 FR 24887 (5/7/1997)64 FR 58666 (10/29/1999)

Basis of OSHA Carcinogens

Structural image
Structural representation of 2,3,7,8-Tetrachlorodibenzo-p-dioxin