Title: Isonitrosoacetone
CAS Registry Number: 306-44-5
CAS Name: 2-Oxopropanal 1-oxime
Additional Names: pyruvaldoxime; propanone 1-oxime
Molecular Formula: C3H5NO2
Molecular Weight: 87.08
Percent Composition: C 41.38%, H 5.79%, N 16.08%, O 36.75%
Literature References: Prepd from acetone by treatment with sodium nitrite in acetic acid at 0°: Küster, Z. Physiol. Chem. 155, 174 (1926); by the action of methyl nitrite on acetone in ether in the presence of HCl: Slater, J. Chem. Soc. 117, 589 (1920).
Properties: Leaflets from ether + petr ether or from carbon tetrachloride, mp 69°. Sublimes easily forming shiny needles. Volatile with steam. Freely sol in water, ether. Moderately sol in warm chloroform, benzene, carbon tetrachloride. Practically insol in petr ether. Sol in alkalies forming yellow solns. Faintly acid to litmus. pK (25°) 8.39.
Melting point: mp 69°
pKa: pK (25°) 8.39

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