IC Cal Standard High Back Catalog number: 59563 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679999 4-Ethyltoluene, 100 µg/ml, Methanol, 1ml Price on request 31241 EPA Method 531.1 Individual Analytes Price on request 2761.14-1ML 3,3'-Dimethoxybenzidine, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 119-90-4 Price on request