624B Internal / Surrogate Standard Back Catalog number: 98628 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9055.6-K-IP 3,4,5-Trichlorocatechol , 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 56961-20-7 Price on request 682411 2-Dimethylaminoethanol, 1000mg Price on request 51063 ASTM D-4815 Oxygenates Calibration Set Price on request