CAS 4919-37-3 appears in our catalog under these names: 4-Hydroxy-3,5-dimethylbenzoic Acid, >95% (HPLC), 4–Hydroxy–3,5–dimethylbenzoic acid, 4-Hydroxy-3,5-dimethylbenzoic acid, 98% , 4-Hydroxy-3,5-dimethylbenzoic Acid, >98.0%(HPLC)(T), 4-Hydroxy-3,5-dimethylbenzoic acid. Offered by: TRC, GLPBio, Thermo Scientific (Alfa Aesar), TCI, Biosynth. Available pack sizes: 25g, 5g, 100g, 1g, 10g, 50g, 250g, 500g.