34810-13-4

9-Anthraldehyde oxime was first synthesized by Hinkel and co-authors in 1935 (m.p. 186–187 °C). In repeating the preparation of the same compound by Fieser and Hartwell used a different procedure that afforded the desired compound in 93% yield with a different melting point of 165 °C.^[1]

[1] S. M. Ahmed,  P. Quadrelli,  Faiq H S Hussain. “9-Anthraldehyde oxime: a synthetic tool for variable applications.” Monatshefte für Chemie - Chemical Monthly 570 1 (2020): 1643–1658.