| http://www.w3.org/ns/prov#value | - A keto-substituted dithiacycloparalfin of seven to nine annular atoms having the formula wherein n is an integer of at least 2 and not greater than 4, a free valence of one of the annular carbon atomsis satisfied by a'monohyclroxyalkyl radical of up to 5 carbon atoms, and the remaining free valences of the annular carbon. atoms are satisfied by hydrogen. 1 8.
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