Glutaronitrile, C5H6N2, was the subject of unsuccessful searches
reported in 2020 by Cabezas et al.
toward four different sources: TMC-1, Orion KL, Sgr B2(N), and B1-b (the last is one of four clumps in the dark nebula
Barnard 1 in
Perseus). A total of 111
rotational transitions were measured. Insufficient matches were found for glutaronitrile in IRAM 30 m surveys by
Tercero et al.,
Belloche et al.
Marcelino et al., and
Cernicharo et al. toward the sources noted above.
Glutaronitrile or pentanedinitrile
does not appear to have any direct uses, but derivatives such as
methyldibromo glutaronitrile are used
as preservatives in some skin care products. The origin of the name is obscure, but other compounds such as
glutaric acid and
glutaraldehyde share the
X–(CH2)3–X structural motif, where X is a carbon-containing functional group
(–CN, –COOH, and –CHO).