EPA Method 8330 Analyte Back Catalog number: 82447 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71850 2-Methylthiophene Price on request 682833 Sodium Dimethyl 5-sulfoisophthalate, 1000mg Price on request 674045 Celiprolol, 10.0 µg/ml, Acetonitrile, 10ml Price on request