1,4-Naphthoquinone Back Catalog number: 79415 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 92772 Phthalate Standard, 2000µg/mL in acetone, 1ml Price on request 23112 EPA Method 8260B Surrogate Standard Price on request L20003000IO PCB No. 30, 10µg/ml in Isooctane, 10ml Price on request