5] ያልተመረጠ-3,9-dioxide እና ሰልፋይድ የተከማቸ ሃይድሮጂን አዲስ ስፔሮሮድ የተባለ ንፅፅር ለመለወጥ ሙከራ ተደረገ, 3,9-dihydro-3,9-dithio-2,4,8,10-tetraoxa-3,9-diphospho [5.
Tusaale ahaan: Rudi iyo al. 3,9-dichloro-2,4,8,10-tetraoxa-3,9-diphosphaspiro [5.5] undecane-3,9-dioxide iyo sulfide Hydrogen ayaa la isku dayey in uu soo saaro qalab cusub oo spiro ah, 3,9-dihydro-3,9-dithio-2,4,8,10-tetraoxa-3,9-diphospho [5.5] undecane.