EPA Method 8120 - Analytes Back Catalog number: 19218 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 682169 (-)-delta-9-THC, 10.0 µg/ml, Methanol, 1ml Price on request 682551 Vardenafil hydrochloride trihydrate, 100mg Price on request 10205.10-K-ME n-Propyl 4-hydroxybenzoate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 94-13-3 Price on request