Skip Navigation
ChemIDplus A TOXNET DATABASE LiteBrowseAdvanced

Substance Name: Dichlorofluoromethane
RN: 75-43-4
UNII: 7GAO4CRJ0B
InChIKey: UMNKXPULIDJLSU-UHFFFAOYSA-N

Molecular Formula

  • C-H-Cl2-F

Molecular Weight

  • 102.923
 

Classification Codes

Classification Code

  • Reproductive Effect

Superlist Classification Codes

  • TWA (10 ppm)
  • TWA 1000 ppm (4200 mg/m3)

Names and Synonyms

Name of Substance

  • Dichlorofluoromethane

Synonyms

  • 4-01-00-00039 (Beilstein Handbook Reference)
  • Algofrene type 5
  • Arcton 7
  • BRN 1731041
  • CFC-21
  • Dichlorofluoromethane
  • Dichloromonofluoromethane
  • Dwuchlorofluorometan
  • Dwuchlorofluorometan [Polish]
  • EINECS 200-869-8
  • F 21
  • FC-21
  • Fluorocarbon 21
  • Fluorodichloromethane
  • Freon 21
  • Freon F 21
  • Genetron 21
  • Halon 112
  • HCFC 21
  • HCFC-21
  • HSDB 142
  • Methane, dichlorofluoro-
  • Monofluorodichloromethane
  • R 21 (refrigerant)
  • Racon 21
  • Refrigerant 21
  • UNII-7GAO4CRJ0B

Systematic Names

  • Dichlorofluoromethane
  • Methane, dichlorofluoro-

Superlist Names

  • Dichlorofluoromethane
  • Dichlorofluoromethane or Refrigerant gas R21
  • Dichlorofluoromethane or Refrigerant gas R21 [UN1029] [Nonflammable gas]
  • Dichloromonofluoromethane
  • Fluorocarbon 21
  • HCFC-21
  • Methane, dichlorofluoro-
  • Refrigerant 21
  • UN1029

Registry Numbers

CAS Registry Number

  • 75-43-4

FDA UNII

  • 7GAO4CRJ0B

Other Registry Number

  • 39289-28-6

System Generated Number

  • 0000075434

Structure Descriptors

InChI

1S/CHCl2F/c2-1(3)4/h1H

InChIKey

UMNKXPULIDJLSU-UHFFFAOYSA-N

Smiles

C(F)(Cl)Cl

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
guinea pig LCLo inhalation 10pph/1H (100000ppm)   Fluorine Chemistry Reviews. Vol. 1, Pg. 197, 1967.
mouse LC50 inhalation > 800gm/m3/2H (800000mg/m3) BEHAVIORAL: TREMOR

BEHAVIORAL: ATAXIA

LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES
Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 20(11), Pg. 38, 1976.
rat LC50 inhalation 49900ppm/4H (49900ppm)   "Documentation of the Threshold Limit Values and Biological Exposure Indices," 5th ed., Cincinnati, OH, American Conference of Governmental Industrial Hygienists, Inc., 1986Vol. 5, Pg. 187, 1986.

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point -1.35E+02 deg C   EXP
Boiling Point 8.9 deg C   EXP
log P (octanol-water) 1.55 (none)   EXP
Water Solubility 1.88E+04 mg/L 25 EXP
Vapor Pressure 1360 mm Hg 25 EXP
Henry's Law Constant 0.011 atm-m3/mole 25 EST
Atmospheric OH Rate Constant 3.03E-14 cm3/molecule-sec 25 EXP

Physical property data is provided to ChemIDplus by SRC, Inc.