2-Butanone Back Catalog number: 79253 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0148.14-500-IO 4-Ethyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 89816-99-9 Price on request 1490.16-10MG 1-Hydroxypyrene-d9, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 132603-37-3 Price on request 79378 Ethylamine Price on request