| 2-Diazo-1-naphthol-5-sulfonyl chloride |
| 5,6-dihydro-6-diazo-5-oxo-1-naphthalenesulfonyl chlorid |
| 6-diazo-5,6-dihydro-5-oxo-1-naphthalenesulfonyl chlorid |
| 5,6-dihydro-6-diazo-5-oxo-1-naphthalenesulfonyl chloride |
| 6-diazo-5,6-dihydro-5-oxo-1-naphthalenesulfonyl chloride |
| 2-Diazo-1,2-dihydro-1-oxonaphthalene-5-sulfonyl chloride |
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