CLP Semi-Volatile Internal Standard Back Catalog number: 10019R Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10612.14-100-ME Efavirenz-13C6 Price on request 0345.19-K-IO 4-n-Heptylbiphenyl, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 59662-32-7 Price on request 58057 Lanthanum (La) Price on request