EPA Method 8270C Mix #27 Back Catalog number: 91006 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 70372 5-alpha-Androstane Price on request 59998 Lithium (Li) Price on request S-13102A1-1ML Prometon, 100µg/ml in Acetonitrile, 1ml Price on request