1H,3H-Naphtho(1,8-cd)pyran-1,3-dione, 5-nitro- 3-Nitro-1,8-naphthalic anhydride 3-Nitronaphthalic anhydride 3027-38-1 5-17-11-00495 (Beilstein Handbook Reference) BRN 0023762 NAPHTHALIC ANHYDRIDE, 3-NITRO- NSC 32326