Water - Absolute Grade™ Back Catalog number: 91914 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 83611 Valeraldehyde-DNPH, 100µg/ml in Acetonitrile, 1ml Price on request 10729.20-K-ME (+)-(S)-Chlorpheniramine maleate,1000 µg base/mL,MeOH,1mL, Price on request X9147 4-Nitroquinoline-1-oxide Price on request