CAS 28705-88-6 appears in our catalog under these names: Chlorpropham-4-hydroxy-o-sulfonic acid, Chlorpropham-4-hydroxy-o-sulfonic acid, min. 95 %, 5 mg, Chlorpropham-4-hydroxy-o-sulfonic acid, min. 95 %, 10 mg, Chlorpropham-4-hydroxy-o-sulfonic acid, min. 95 %, 25 mg. Offered by: Biosynth, Roth. Available pack sizes: 5mg, 10mg, 25mg, 50mg, 100mg.