4-acetamido-5-hydroxynaphthalene-2,7-disulfonic acid
- CAS NO.：134-34-9
- Empirical Formula: C12H11NO8S2
- Molecular Weight: 361.35
- MDL number: MFCD00467602
- EINECS: 205-139-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-20 15:44:19
What is 4-acetamido-5-hydroxynaphthalene-2,7-disulfonic acid?
Chemical properties
?4-Acetylamino-5-hydroxynaphthalene-2,7- disulfonic acid [134-34-9] , N-acetyl H acid, is produced by reacting H acid in aqueous alkaline solution with acetic anhydride at 70℃ for 1 h, followed by heating at 95 C for 2 h to hydrolyze the O-acetyl derivative (yield 88 %). It is used to produce C.I. Acid Red 1, C.I. Acid Red 35, and C.I. Acid Violet 7.
Properties of 4-acetamido-5-hydroxynaphthalene-2,7-disulfonic acid
| Density | 1.801±0.06 g/cm3(Predicted) |
| pka | -0.30±0.40(Predicted) |
| EPA Substance Registry System | 4-Acetamido-5-hydroxy-2,7-naphthalenedisulfonic acid (134-34-9) |
Safety information for 4-acetamido-5-hydroxynaphthalene-2,7-disulfonic acid
Computed Descriptors for 4-acetamido-5-hydroxynaphthalene-2,7-disulfonic acid
4-acetamido-5-hydroxynaphthalene-2,7-disulfonic acid manufacturer
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