Heptachlor Back Catalog number: X9111 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended ACQ-SE13-115 Ethanol standard in serum,1.3g/L,serum, 1.5mL Price on request C16177150 Phthalic acid, bis-n-undecyl ester, certified, 0.1g Price on request 2621.32-10UG 17ß(H),21ß(H)-(22RS)-Bishomohopane , neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 54311-28-5 Price on request