Hafnium (Hf) Back Catalog number: 58072 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0714.12-K-IO 1-Ethylnaphthalene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1127-76-0 Price on request 0620.30-100-IO Onocerane I (8ß(H),14 alpha(H)), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 56297-92-8 Price on request 79690 Tetracycline Price on request