Internal Standard Back Catalog number: 93185 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended SCP150-200-001 CONOSTAN Cl Standard, 0.001% (10ppm), 100g Price on request 71165 Trichlorphon, 1000µg/ml in MeOH, 1ml Price on request 90755 1,4-Dichlorobenzene-d4 Price on request