Boron (B) Back Catalog number: 57005 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1087.18-K-T Benz[a]anthracene-d12, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 1718-53-2 Price on request 678215 D4-Propyl paraben, 100 µg/ml, Methanol, 1ml Price on request 11902.19-K-ME Protriptyline hydrochloride ,1000 µg base/mL,MeOH,1mL, Price on request