Hettler, Hans published the artcileMass-spectroscopic fragmentation behavior of benzisothiazole S,S-dioxide derivatives, Name: 3-Aminobenzo[d]isothiazole 1,1-dioxide, the publication is Organic Mass Spectrometry (1969), 2(11), 1117-33, database is CAplus.
The fragmentation behavior of derivatives of benzisothiazole S,S-dioxide is discussed. A series of degradation processes typical for this class of compounds is observed, whose relative importance, however, largely depends on the substituents present. Provided it is energetically favorable, fragmentation of the substituents (frequently followed by expulsion of SO2) prevails; otherwise, degradation of the heteroaromatic ring is observed (sometimes with rearrangements involving the SO2 group). No parallels between thermal and electron-impact-induced rearrangements have been observed
Organic Mass Spectrometry published new progress about 7668-28-2. 7668-28-2 belongs to isothiazole, auxiliary class Sulfamide,Amine,Benzothiazole, name is 3-Aminobenzo[d]isothiazole 1,1-dioxide, and the molecular formula is C7H6N2O2S, Name: 3-Aminobenzo[d]isothiazole 1,1-dioxide.
Referemce:
https://en.wikipedia.org/wiki/Isothiazole,
Isothiazole – ScienceDirect.com