p-Xylene, 1000µg/ml in MeOH, 1ml Back Catalog number: 70308 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended N-13829-100MG Tri(chloropropyl) phosphate, 100mg Price on request 678464 Paraoxon-methyl, 10 µg/ml, Acetonitrile, 10ml Price on request 9282.28-10MG Sildenafil citrate,neat,neat,10mg Price on request