Spiking Standard 4 Back Catalog number: 58651 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 73177 Glutaric acid Price on request 684313 D6-N-Nitrosodimethylamine, 100 µg/ml, Acetonitril Price on request 676556 D7-Propamocarb, 100 µg/ml, Acetone, 1ml Price on request