3,3-Dimethyl-2-oxobutanenitrile 3,3-Dimethyl-2-oxobutyronitrile 42867-40-3 Butanenitrile, 3,3-dimethyl-2-oxo- EINECS 255-978-3 Pivaloyl cyanide Trimethylacetyl cyanide Trimethylbrenztraubensaurenitril [German] Trimethylpyruvonitrile