Hydrogen peroxide (HOOH) is one of the rare astromolecules that is widely known in the
workaday human world. A report of its detection was announced in 2011 by
Bergman et al. toward the
cloud complex, specifically
the A core. The observations were made with the
APEX 12m telescope, a prototype of telescopes
constructed for ALMA.
A subsequent search for HOOH in a variety of
other sources did not yield any further detections of the molecule.
Hydrogen peroxide is commonly used
as a disinfectant and
is nonplanar, distorted away from the ideal combination of two 90° H–O–O bond angles and a
90° H–O–O–H torsion angle. The related compound HO2, the hydroperoxyl radical,
was discovered in 2012 toward the same source as
HOOH by two of the authors of the HOOH detection, Parise and Bergman.