1,3,4,6,7,8-Hexahydro-4,6,6,7,8,8-hexamethylcyclopenta[g]-2-benzopyran

Chemical Name1,3,4,6,7,8-Hexahydro-4,6,6,7,8,8-hexamethylcyclopenta[g]-2-benzopyran
CASRN1222-05-5
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)100/100
Listing TypeIndividually listed chemical
Effective Date01-JAN-23
Chemical QualifierNo
MetalNo
Chemical of Special ConcernYes
Per- or Polyfluoroalkyl SubstanceNo

Rulemaking Changes Affecting This Chemical

StatusEffective Reporting YearFR Proposed RuleFR Final Rule
Added202386 FR 57614 (10/18/2021)87 FR 73475 (11/30/2022)
Structural image
Structural representation of 1,3,4,6,7,8-Hexahydro-4,6,6,7,8,8-hexamethylcyclopenta[g]-2-benzopyran