Isobutyric acid Back Catalog number: 71809 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11902.19-K-ME Protriptyline hydrochloride ,1000 µg base/mL,MeOH,1mL, Price on request 3198.12-K-IO 11-cis-Dodecenoic acid , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 65423-25-8 Price on request 10860.18-100MG Tobramycin Price on request