EPA Method 524 & 624 - Internal Standard Back Catalog number: 19494 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2180.41-5MG n-Hentetracontane, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 7194-87-8 Price on request 672843 Dimethyl phthalate, 1000mg Price on request 53102 IC-MS Verification Standard Price on request