| prov:value
| - The stripping composition of claim 5 wherein the inhibitor is a compound selected from the group consisting of: ##STR1## wherein R1, R2, R3 and R4 are the same or different and each represent H, OH, NHR4, CO2 R6, COR7 and SH, wherein R5 and R6 are the same or different and each represent H or lower alkyl, and R6 represents lower alkyl, with the proviso that when R4 is H, not more than one of R1, R
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