Multi-Element Internal Std., 10ug/ml, 4x25ml Back Catalog number: 52319 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 79053 4,4’-Methoxychlor Price on request 73060 Fentanyl Price on request 8594.12 3-Amino-4-nitrobiphenyl, , Solvent-, Unit , # of units-, Cas.no. Price on request