pH 9.0 Standard @ 25°C Back Catalog number: 59337 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3902.40-5MG Astaxanthin, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 472-61-7 Price on request 673792 Dioxathion, 10.0 µg/ml, Ethyl acetate, 10ml Price on request 50459 Copper AA Standard (Cu) Price on request