EPA Method 8081A Pesticide Standard A Back Catalog number: 92787 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11898.20-K-ME Maprotiline hydrochloride,1000 µg base/mL,MeOH,1mL, Price on request 94431 Volatile Standard Price on request M197872 (+)-Matrine-d3, 2.5mg Price on request