Ammonia as N Back Catalog number: 59479 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9427.5-100MG Hexachlorocyclopentadiene, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 77-47-4 Price on request 98130 SVOC Standard Price on request 40000 EPA Method 601 Purgeable Halocarbons Price on request