Internal standard 2, 2000g/ml in MeOH, 1ml Back Catalog number: 30068 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 52041 Interference Standard 4 Price on request 677488 D8-Ciprofloxacin hydrochloride hydrate, 100 µg/ml, Price on request 681291 2-Aminoanthracene, 10.0 µg/ml, Cyclohexane, 10ml Price on request