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Propiolic acid

Catalog No. A13245 Name Alfa Aesar
CAS Number 471-25-0 Website
M. F. C3H2O2 Telephone
M. W. 70.04678 Fax
Purity 98+% Email
Storage Chembase ID: 87502

SYNONYMS

Title
丙炔酸
IUPAC name
prop-2-ynoic acid
IUPAC Traditional name
propiolic acid
Synonyms
Acetylenecarboxylic acid
Propargylic acid

DATABASE IDS

Merck Index 147824
EC Number 207-437-8
MDL Number MFCD00004360
CAS Number 471-25-0
Beilstein Number 878176

PROPERTIES

Purity 98+%
Boiling Point 102°C/200mm
Density 1.136
Flash Point 58°C(136°F)
Melting Point 18°C
Refractive Index 1.4330
GHS Pictograms GHS02
GHS Pictograms GHS05
GHS Pictograms GHS06
GHS Hazard statements H301-H310-H314-H318-H226
European Hazard Symbols Toxic Toxic (T)
GHS Precautionary statements P210-P301+P310-P303+P361+P353-P305+P351+P338-P361-P405-P501A
Risk Statements 24/25-34
RTECS UD9300000
Safety Statements 20-23-26-27-36/37/39-45-60
TSCA Listed
Hazard Class 8
UN Number UN2920
Packing Group II

DETAILS

REFERENCES

  • Alkylation of the dilithio-derivative leads to higher 2-alkynoic acids. Reaction with epoxides, partial reduction (Lindlar) of the triple bond and cyclization has been used in the synthesis of unsaturated lactones: Tetrahedron Lett., 2615 (1974); J. Org. Chem., 40, 1610 (1975).