pH 12.45 Standard @ 25°C Back Catalog number: 50708 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 97935 Surrogate Standard Price on request 10378.20-K-ME EDDP perchlorate,1000 µg/mL (as pyrrolinium) ,MeOH,1mL, Price on request 71040 2,4-Dimethylhexane Price on request