2,3,5,6-Tetrachloroterephthalic acid Back Catalog number: 78007 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4282 Internal Standard for GC-analysis of PAH compounds II S-4282 Compound Prod.no. Batch no. Purity CAS no. Grav. conc. 2,2'-Binaphthyl 0254,20 2951 99.9 % 612-78 Price on request 32003 EPA Method 500 Series Internal Std #4 Price on request 673563 Endosulfan-sulfate, 10.0 µg/ml, Ethyl acetate, 1 Price on request