EPA Method 528 Internal Standard Back Catalog number: 93188 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0977.27-100-IOX5 d2 C27 alpha alpha alpha (20R)-Cholestane, 100µg/mL in Isooctane, 5 x 1ml Price on request 71041 Acetyl chloride Price on request 675682 Oleoyl ethanolamide, 100mg Price on request