(-)-delta-9-THC-acid-13C4 Back Catalog number: 10396.21-50-ME Manufacturer: CHIRON AS Availability: 3 weeks Price on request - + Recommended L20635100CY Benzo[a]pyrene D12, 10µg/mL in Cyclohexane, 10ml Price on request 3455.8-100-CY Metribuzin Price on request 73570 4,4'-Methoxychlor olefin Price on request