DOW 624 Volatile Internal/Surrogate Standard Back Catalog number: 93323 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 98622 VOC Standard Price on request 2776.10-100-DC Heptachlor, 100µg/mL, Solvent-dichloromethane, Unit 1mL, # of units-1, Cas.no. 76-44-8 Price on request 675275 Quintozene, 250mg Price on request