CAS 38862-25-8 appears in our catalog under these names: N–Succinimidyl Methacrylate, N-Succinimidyl Methacrylate, >98.0%(GC), Methacrylic acid N-hydroxysuccinimide ester, N-Succinimidyl Methacrylate 98% GC, METHACRYLIC ACID N-HYDROXYSUCCINIMIDE E&. Offered by: GLPBio, TCI, Biosynth, Ambeed, Sigma-Aldrich. Available pack sizes: 25g, 1g, 5g, 2g, 10g, 50g, 250mg, 250 mg.