6034. 2-Methyl-3-butyn-2-ol

Nomenclature

CAS number: 115-19-5
2-Hydroxy-2-methyl-3-butyne.
C5H8O; mol wt 84.12.
C 71.39%, H 9.59%, O 19.02%.

Description and references

Toxicity data: W. Keil et al., Arzneim.-Forsch. 4, 477 (1954); K. Soehring et al., ibid. 5, 161 (1955).

Chemical structure

Properties

Liquid. d2020 0.8672. 7.24 lbs/gal. mp 2.6°. bp760 104-105°; bp80 52°; bp12 20°. Flash pt 77°F (25°C). nD20 1.4211. Surface tension at 25° = 23.8 dynes/cm; 5% aq soln = 41.7 dynes/cm. Miscible with water, acetone, benzene, carbon tetrachloride, Cellosolve, cyclohexanone, diethylene glycol, ethyl acetate, kerosine, methyl ethyl ketone, mineral spirits, monoethanolamine, neatsfoot oil, petr ether, soybean oil, Stoddard solvent. Azeotrope with water, bp 90.7°, contains 28.4% H2O. LD50 in mice (mg/kg): 1800 orally (Keil); 2340 s.c. (Soehring).