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| OEM | OEM Services Provided |
| Feature | Good stability,Easy to Use |
| Classification | Dyes and Pigments |
| Advantage | Professional, Fast Delivery, Customizable | Samples | Apply for free，Contact us now. |
| Product Name: | Naphthol AS-D |
| Synonyms: | 1-(2',3'-Hydroxynaphthoylamino)-2-methylbenzene;2-Naphtho-o-toluidide, 3-hydroxy-;3-hydroxy-n-(2-methylphenyl)-2-naphthalenecarboxamid;Acco Naf-Sol AS-D;Acco Naphthol AS-D;Acna Naphthol E;AcnaNaphtholE;Amanil Naphthol AS-D |
| CAS: | 135-61-5 |
| MF: | C18H15NO2 |
| MW: | 277.32 |
| EINECS: | 205-205-0 |
| Product Categories: | Substrates;Intermediates of Dyes and Pigments |
| Mol File: | 135-61-5.mol |
| Melting point | 196-198 °C |
| Boiling point | 399.7±35.0 °C(Predicted) |
| density | 1.277±0.06 g/cm3(Predicted) |
| pka | 8.73±0.40(Predicted) |
| Colour Index | 37520 |
| form | powder to crystal |
| color | White to Gray to Brown |
| NIST Chemistry Reference | 2-Naphthalenecarboxamide, 3-hydroxy-n-(2-methylphenyl)-(135-61-5) |
| EPA Substance Registry System | 2-Naphthalenecarboxamide, 3-hydroxy-N-(2-methylphenyl)- (135-61-5) |
| Hazard Codes | N |
| Risk Statements | 50/53 |
| Safety Statements | 60-61 |
| RIDADR | UN 3077 9/PG 3 |
| WGK Germany | 2 |
| HS Code | 2924.29.7790 |
| HazardClass | 9 |
| PackingGroup | III |
| Provider | Language |
|---|---|
| SigmaAldrich | English |
| Chemical Properties | Beige powder. Soluble in solvent naphtha. Insoluble in water and soda ash solution. |
| O-Methylaniline and 3-Hydroxy-2-naphthoic acid condensation. | |
| Flammability and Explosibility | Non flammable |
| Purify it by recrystallisation from xylene. This gives yellow-green fluorescent solutions at pH 8.2-9.5. [IR: Schnopper et al. Anal Chem 31 1542 1959.] The naphthol AS-D acetate is obtained with AcCl, m 168-169o, and with chloroacetyl chloride naphthol AS-D-chloroacetate is obtained [Moloney et al. J Histochem Cytochem 8 200 1960, Burstone Arch Pathology 63 164 1957]. [Beilstein 12 H 505.] | |
| Properties and Applications | yellowish powder, melting point for 195 ~ 196 ℃. Insoluble in water solution and sodium carbonate, soluble in naphtha. In sodium hydroxide solution for yellow. Sensitive to air. Mainly used for cotton yarns, cotton fabric, PVA, viscose, silk and vinegar fiber dyeing, also can be used for direct printing, the cotton print and dye discharge printing, and can be used as a quick pigment and organic pigments intermediate. The affinity of cotton is low, medium coupled ability. |
| Raw materials | Carbon dioxide-->Phosphorus trichloride-->Chlorobenzene-->o-Toluidine-->3-Hydroxy-2-naphthoic acid-->3-Hydroxy-2-naphthoic acid-->o-Toluidine |
| Preparation Products | Pigment Red 13-->Chromate(3-), bis[3-(hydroxy-κO)-4-[[2-(hydroxy-κO)-3-[[(2-methylphenyl)amino]carbonyl]-1-naphthalenyl]azo-κN1]-7-nitro-1-naphthalenesulfonato(3-)]-, disodium hydrogen |
Declaration: The products displayed on this website are intended exclusively for industrial applications or scientific research. They are not intended for medical, pharmaceutical, or food use. In accordance with applicable laws and regulations, purchasing organizations must hold valid qualifications and approvals.
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