Formyl cyanide, aka cyanoformaldehyde, HC(O)CN, was detected toward
Sgr B2(N) in five transitions having J+10,J+1
↔ J1,J with J =
A. J. Remijan, J. M. Hollis, F. J. Lovas, W. D. Stork, P. R. Jewell, and D. S. Meier,
Detection of Interstellar Cyanoformaldehyde (CNCHO)
Astrophys. J. 675, L85L88 (2008).