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The reaction of 2,3-dichloro-1,4-naphthoquinone with p-nitrobenzhydrazide yeilds the disubstituted product bis-(p-nitrobenzhydrazino)-1,4-napthtquinone.
H. M. Ali,; S. N. Abdul Halim,; S. W. Ng. Bis[5-bromo-1H-indole-3-carbaldehyde (2-nitrobenzoyl)hydrazonato-[kappa]2N,O]bis(pyridine-[kappa]N)nickel(II) pyridine disolvate. Acta Cryst. 2005, E61, m1682-m1683.
F. I. Carrolla,; H. Wayne Millera. The Reaction Of 2,3-Dichloro-1,4-Naphthoquinone With P-Nitrobenzhydrazide1 . Organic Preparations and Procedures. 1970, 2 (4), 259-263.
Hazard Statements: H315-H319-H335
Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Precautionary Statements: P261-P280a-P305+P351+P338-P304+P340-P405-P501a
Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves and eye/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.