| Identification | Back Directory | [Name]
4-(benzoylamino)-5-hydroxynaphthalene-1,7-disulphonic acid | [CAS]
6361-49-5 | [Synonyms]
Einecs 228-838-4
4-Benzamido-5-hydroxy-1,7-naphthalenedisulfonic acid
4-benzamido-5-hydroxynaphthalene-1,7-disulfonic acid
4-Benzoylamino-5-hydroxy-1,7-naphthalenedisulfonic acid
5-Hydroxy-4-(benzoylamino)-1,7-naphthalenedisulfonic acid
4-(Benzoylamino)-5-hydroxy-1,7-naphthalenedisulfonic acid
4-(benzoylamino)-5-hydroxynaphthalene-1,7-disulphonic acid
1,7-Naphthalenedisulfonic acid, 4-(benzoylamino)-5-hydroxy- | [EINECS(EC#)]
228-838-4 | [Molecular Formula]
C17H13NO8S2 | [MOL File]
6361-49-5.mol | [Molecular Weight]
423.42 |
| Hazard Information | Back Directory | [Uses]
4-Benzamido-5-hydroxynaphthalene-1,7-disulfonic acid [6361-49-5], N-benzoyl K acid, is produced by reacting purified K acid with benzoyl chloride in aqueous alkaline sodium carbonate solution at 35 – 40 ℃ for 18 h, followed by heating for 1 h at 90℃ to hydrolyze the O-benzoyl derivative (yield 80 %). It is used to produce C.I. Acid Red 133, C.I. Acid Red 157, and C.I. Mordant Red 21. |
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