GLC Reference standard 744, 100mg Back Catalog number: GLC-744 Availability: In the manufacturer's stock Price on request - + Recommended 0040.16-200-T Benzo[b]naphtho[2,1-d]furan, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 239-30-5 Price on request BFR-ISS Internal/Injection Standards, 1.2ml, toluene Price on request 1028.16-K-IO 9-Ethylphenanthrene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 3674-75-7 Price on request