Chemsolute techn. buffer pH 4.01, red, twin neck bottle, 250ml Back Catalog number: 1165-250ML Availability: In the manufacturer's stock Price on request - + Recommended 33595-1L Buffer solution pH 9.180 (25oC) with fungicide, ac Price on request 33650-6X500ML Buffer solution pH 11.0 (20 oC) boric acid / sodiu Price on request 33646-5L-VP Buffer solution pH 7.0 (20oC) potassium dihydrogen Price on request