Diacetyl monoxime
# Diacetyl monoxime

Diacetyl monoxime is a chemical compound described by the formula $CH_3C(O)C(NOH)CH_3.$ This colourless solid is the monooxime derivative of the diketone butane-2,3-dione (also known as diacetyl and biacetyl). Its biological effects include inhibiting certain ATPases.

## Preparation

The compound can be prepared from butanone by reaction with ethyl nitrite. It is an intermediate in the preparation of dimethylglyoxime:

## Uses

Diacetyl monoxime can be used with thiosemicarbazide to selectively detect small amounts of urea in the presence of other nitrogen-containing compounds.

