WS Organonitrogen Pesticides Back Catalog number: 38129 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11755.12-100-IO 2,2',3,3',4,4',6-Heptachlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request 40008 EPA Method 617 - Analytes Mix #2 Price on request 98862 Formaldehyde-DNPH Level 5 (5ug/mL) Price on request