| http://www.w3.org/ns/prov#value | - one hydroxy substituent, R5 has at least one hydroxy substituent, the molecular weight of any one of R1, R2, R3, R4, or R5 is less than or equal to about 1000 daltons, n is a positive integer or zero, and y is zero or a positive integer less than or equal to (2n+1).
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