4-Hydroxy-7-methylamino-2-naphthalenesulfonic acid
- CAS NO.:22346-43-6
- Empirical Formula: C11H11NO4S
- Molecular Weight: 253.27
- MDL number: MFCD00128846
- EINECS: 244-924-4
- Update Date: 2023-11-06 15:27:19
What is 4-Hydroxy-7-methylamino-2-naphthalenesulfonic acid?
Chemical properties
4-Hydroxy-7-methylaminonaphthalene-2- sulfonic acid [22346-43-6], N-methyl J acid, is produced by reaction of 2,5-dihydroxynaphthalene-7-sulfonic acid with methylamine and aqueous sodium bisulfite at 96 C for 36 h (yield 83 %). It is used to produce C.I. Reactive Orange 4, C.I. Reactive Orange 13, and C.I. Reactive Red 33.
Properties of 4-Hydroxy-7-methylamino-2-naphthalenesulfonic acid
Density | 1.542 |
refractive index | 1.4790 (estimate) |
storage temp. | 2-8°C |
pka | -0.14±0.40(Predicted) |
color | Very dark brown |
CAS DataBase Reference | 22346-43-6(CAS DataBase Reference) |
EPA Substance Registry System | 2-Naphthalenesulfonic acid, 4-hydroxy-7-(methylamino)- (22346-43-6) |
Safety information for 4-Hydroxy-7-methylamino-2-naphthalenesulfonic acid
Signal word | Warning |
Pictogram(s) |
Exclamation Mark Irritant GHS07 |
GHS Hazard Statements |
H302:Acute toxicity,oral |
Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 4-Hydroxy-7-methylamino-2-naphthalenesulfonic acid
Abamectin manufacturer
Vipul Organics Ltd
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product: 4-Hydroxy-7-methylamino-2-naphthalenesulfonic acid 98%
Jemby Chem Limited
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Phone:+91-9825064400
Whatsapp: +91-9825064400
product: 4-Hydroxy-7-methylamino-2-naphthalenesulfonic acid 22346-43-6 98%
Santel Industries
1Y
Phone:+917926401417
Whatsapp: +91-7926401417
product: 22346-43-6 4-Hydroxy-7-methylamino-2-naphthalenesulfonic acid 98%
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Naphthalene-2-sulfonic acid
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