2-Hydroxypropyl 2-methyl-2-propenoate 2-Hydroxypropyl methacrylate 2-Hydroxypropylmethacrylate 2-Propenoic acid, 2-methyl-, 2-hydroxypropyl ester 4-02-00-01532 (Beilstein Handbook Reference) 923-26-2 Acryester HP BRN 1752228 EINECS 213-090-3 METHACRYLIC ACID, 2-HYDROXYPROPYL ESTER beta-Hydroxypropyl methacrylate