Retention Time Marker Standard Back Catalog number: 93609 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3914.16-100-DRIED Crotaline,100 µg/mL,dried down,1mL, Price on request 2698.19-100MG Noramitriptyline hydrochloride, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 894-71-3 Price on request 3772.6-K-IO 2,5-Dimethylpyrazine, Research grade, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. 123-32-0 Price on request