EPA Method 549.1 Analytes Back Catalog number: 31079 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended XA14960000AL Methabenzthiazuron, 100μg/mL in Acetonitrile, 1ml Price on request 677713 3-Methylphenol, 100 µg/ml, Acetonitrile, 1ml Price on request 0974.29-10-IO d4 C29 alpha alpha alpha (20R)-Ethylcholestane, 10µg/mL in Isooctane, 1ml Price on request