Ammonia as N Back Catalog number: 54213 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10580.39-1MM-CF Phosphatidylethanol sodium salt,1 millimol free acid (723.5 µg/mL),chloroform,1mL Price on request 79886 2,4,6-Trichloroanisole Price on request S-4059-0-BX5 Thiophene in Thiophene-free Benzene Units: 5x1mL ampoule, 10mL screw-capped bottle Chiron No. Concentration Light White Mineral Oil µg thiophene/g (20 cSt at 40°C) Price on request