2,3,3',4,4',5’,6-Heptachlorobiphenyl Back Catalog number: 66191 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended X9001 Acenaphthene Price on request 34161 2-Nitropropane Price on request H918750 (+)-20-Hydroxyecdysone, 1g Price on request