WS Sodium (Na) Back Catalog number: 54149 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 0978.10-10MG Naphthalene-d8, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 1146-65-2 Price on request 0447.13-K-IO 4,6,8-Trimethylazulene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 941-81-1 Price on request 58073 Tantalum (Ta) Price on request