Chemical Detail

Chemical NameMethyl mercaptan
Synonym(s)1-Methanethiol | Mercaptomethane | Methanethiol | Methyl sulfhydrate | Thiomethanol | Thiomethyl alcohol
De minimis Limit %1
M,P/OU Threshould (lb)25,000/10,000
Listing TypeIndividually listed chemical
Effective Date1994-01-01 (This chemical is currently stayed and reporting is not required)
Chemical QualifierNo
Stayed ListingYes
Chemical of Special ConcernNo
Per- or Polyfluoroalkyl SubstanceNo

Rulemaking Changes Affecting This Chemical

StatusEffective Reporting YearFR Proposed RuleFR Final Rule
Stayed1994No proposed rule for this action59 FR 43048 (8/22/1994)
Added199457 FR 41020 (9/8/1992)58 FR 63500 (12/1/1993)