1,4-Naphthalenedione, 2,3-dichloro- 1,4-Naphthoquinone, 2,3-dichloro- 117-80-6 2,3-Dichlor-1,4-naphthochinon 2,3-Dichloro-.alpha.-naphthoquinone 2,3-Dichloro-1,4-naphthalenedione 2,3-Dichloro-1,4-naphthoquinone 2,3-Dichloronaphthoquinone 2,3-Dichloronaphthoquinone-1,4 Algistat CNQ Compound 604 Dichlone Dichloronaphthoquinone Diclone ENT 3,776 NSC537 Phygon Phygon Seed Protectant Phygon XL Sanquinon U.s. rubber 604 USR 604 Uniroyal WLN: L66 BV EVJ CG DG