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Substance Name: Propionic anhydride
RN: 123-62-6

Molecular Formula

  • C6-H10-O3

Molecular Weight

  • 130.142

Classification Codes

Classification Code

  • Skin / Eye Irritant

Superlist Classification Code

  • Reportable Quantity (RQ) = 5000 lb
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Names and Synonyms

Name of Substance

  • Propionic anhydride


  • 4-02-00-00722 (Beilstein Handbook Reference)
  • AI3-26975
  • Anhydrid kyseliny propionove
  • Anhydrid kyseliny propionove [Czech]
  • BRN 0507066
  • Caswell No. 708
  • EC 204-638-2
  • EINECS 204-638-2
  • EPA Pesticide Chemical Code 077704
  • HSDB 1215
  • Methylacetic anhydride
  • Propanoic acid, anhydride
  • Propanoic anhydride
  • Propionic acid anhydride
  • Propionic anhydride
  • Propionyl oxide
  • UNII-E3A2VV18E6

Systematic Names

  • Propanoic acid, 1,1'-anhydride
  • Propanoic acid, anhydride
  • Propionic anhydride

Superlist Names

  • Propanoic acid, anhydride
  • Propionic anhydride
  • Propionic anhydride [UN2496] [Corrosive]
  • UN2496

Registry Numbers

CAS Registry Number

  • 123-62-6


  • E3A2VV18E6

System Generated Number

  • 0000123626

Structure Descriptors








Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
guinea pig LD50 skin 1mL/kg (1mL/kg) SKIN AND APPENDAGES (SKIN): "DERMATITIS, OTHER: AFTER SYSTEMIC EXPOSURE" National Technical Information Service. Vol. OTS0533570,
rabbit LD50 skin 10mL/kg (10mL/kg)   AMA Archives of Industrial Hygiene and Occupational Medicine. Vol. 10, Pg. 61, 1954.
rat LD50 oral 2360mg/kg (2360mg/kg)   AMA Archives of Industrial Hygiene and Occupational Medicine. Vol. 10, Pg. 61, 1954.

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point -4.50E+01 deg C   EXP
Boiling Point 170 deg C   EXP
log P (octanol-water) 0.400 (none)   EST
Water Solubility 4.14E+04 mg/L 25 EST
Vapor Pressure 1.36 mm Hg 25 EXP
Henry's Law Constant 6.28E-05 atm-m3/mole 25 EST
Atmospheric OH Rate Constant 9.14E-13 cm3/molecule-sec 25 EST

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