Chemical Detail

Chemical NameDichlorofluoromethane (HCFC-21)
Synonym(s)Algofrene Type 5 | Dichloromonofluoromethane | F 21 | FC 21 | Fluorodichloromethane | Freon F 21 | Genetron 21 | HCFC-21 | Halon 112 | Methane, dichlorofluoro- | Monofluorodichloromethane | R 21 (refrigerant) | Refrigerant 21
CASRN75-43-4
De minimis Limit %1
M,P/OU Threshould (lb)25,000/10,000
Listing TypeIndividually listed chemical
Effective Date1995-01-01
Chemical QualifierNo
MetalNo
Chemical of Special ConcernNo
Per- or Polyfluoroalkyl SubstanceNo
Structural image
Structural representation of Dichlorofluoromethane (HCFC-21)

Rulemaking Changes Affecting This Chemical

StatusEffective Reporting YearFR Proposed RuleFR Final Rule
Added199559 FR 1788 (1/12/1994)59 FR 61432 (11/30/1994)