There's a big debate in the record world as to whether alcohol cleans or damages records. It is well-known it damages acetates and very early records, but mine is a 78s from 1950, and by then as far as I can find RCA Victor was making them out of (at least mostly) vinyl. And if enough people use alcohol to clean vinyl, I don't think it would be a problem. Also, wouldn't I have seen something on it beforehand, like misting?