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Home > Encyclopedia > 1,2-Naphthoquinone-2-diazide-4-sulfonic acid

1,2-Naphthoquinone-2-diazide-4-sulfonic acid

1,2-Naphthoquinone-2-diazide-4-sulfonic acid structure

1,2-Naphthoquinone-2-diazide-4-sulfonic acid 

structure
  • CAS No:

    20680-48-2

  • Formula:

    C10H6N2O4S

  • Chemical Name:

    1,2-Naphthoquinone-2-diazide-4-sulfonic acid

  • Synonyms:

    1-Naphthalenesulfonic acid,3-diazo-3,4-dihydro-4-oxo-;3-Diazo-3,4-dihydro-4-oxo-1-naphthalenesulfonic acid;1,2-Naphthoquinone-2-diazide-4-sulfonic acid;2-Diazo-1-naphthalenone-4-sulfonic acid;TKF 428;17688-77-6;112284-43-2;189105-24-6;1911555-85-5

  • Categories:

    Pharmaceutical Intermediates  >  Bulk Drug Intermediates

1,2-Naphthoquinone-2-diazide-4-sulfonic acid Basic Attributes

250.23

250.00500

243-965-5

Characteristics

117.21000

1.94426

Safety Information

UN 3226 4.1

3

11-36/37/38

16-26-36/37

F,Xi

P210, P220, P234, P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P370+P378, P403+P233, P403+P235, P405, P411, P420, P501

H242

1,2-Naphthoquinone-2-diazide-4-sulfonic acid Use and Manufacturing

Methods of Manufacturing

It is derived from 1-amino-2-naphthol-4-sulfonic acid (1, 2, 4-acid) by diazotization. Raw material consumption quota: 1, 2, 4-acid (40%) 1052kg/t, sodium nitrite (98%) 320kg/t, copper sulfate (96%) 11kg/t, sulfuric acid (98%) 1018kg/t, caustic soda (40%) 31kg/t.

Uses

Dye intermediate. Used in the synthesis of acid mordant dyes, azo dyes, nitro 1,2,4-acid diazonium oxide, etc.

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