6259-50-3
6-dimethylamino-4-hydroxynaphthalene-2-sulphonic acid
CAS: 6259-50-3
Molecular Formula: C12H13NO4S
6259-50-3 - Names and Identifiers
| Name | 6-dimethylamino-4-hydroxynaphthalene-2-sulphonic acid |
| Synonyms | 6-DIMETHYLAMINO-4-HYDROXY-2-NAPHTHALENESULFONIC ACID 6-dimethylamino-4-hydroxynaphthalene-2-sulphonic acid 6-(dimethylamino)-4-hydroxynaphthalene-2-sulfonic acid 2-Naphthalenesulfonic acid, 6-(dimethylamino)-4-hydroxy- 4-amino-N-(2,6-dibromo-4-tert-butylphenyl)benzenesulfonamide 6-DIMETHYLAMINO-4-HYDROXY-2-NAPHTHALENE- SULFONIC ACID, TECH. |
| CAS | 6259-50-3 |
| EINECS | 228-404-4 |
| InChI | InChI=1/C12H13NO4S/c1-13(2)9-4-3-8-5-10(18(15,16)17)7-12(14)11(8)6-9/h3-7,14H,1-2H3,(H,15,16,17) |
6259-50-3 - Physico-chemical Properties
| Molecular Formula | C12H13NO4S |
| Molar Mass | 267.3 |
| Density | 1.462±0.06 g/cm3(Predicted) |
| Melting Point | 251-252°C (dec.)(lit.) |
| pKa | -0.15±0.40(Predicted) |
| Refractive Index | 1.683 |
6259-50-3 - Risk and Safety
| Hazard Symbols | C - Corrosive |
| Risk Codes | 34 - Causes burns |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S27 - Take off immediately all contaminated clothing. S28 - After contact with skin, wash immediately with plenty of soap-suds. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
| UN IDs | UN 3261 8/PG 2 |
| WGK Germany | 3 |
| Hazard Class | 8 |
| Packing Group | III |
6259-50-3 - Introduction
Acid is an organic compound whose chemical formula is C12H13NO4S. The following is a description of its nature, use, preparation and safety information:
Nature:
1. Appearance: acid is a light yellow solid.
2. Solubility: It is soluble in water, but has poor solubility in organic solvents.
3. pH value: its acidity is strong, and the pH value is generally between 2 and 3.
4. Melting point: The melting point of this compound is about 284-286 degrees Celsius.
Use:
1. Dye: It can be used as a synthetic intermediate for organic dyes and can be used for color adjustment of dyes.
2. indicator: due to the nature of its acid-base indicator, it is widely used in chemical analysis methods such as acid-base titration.
3. photosensitive material: the compound can be used to prepare photosensitive materials, such as photosensitive materials used in the photographic and printing industries.
Preparation Method:
The preparation method of acid is more complicated and generally requires a multi-step reaction. These include the reaction of methylated naphthyl compounds with nitrous acid through a series of organic synthesis reactions to obtain 6-methoxy-4-hydroxy-2-naphthalenesulfonic acid. Subsequent reduction and amination reactions give the final product, acid.
Safety Information:
The safety of this compound is high, but the following matters still need to be paid attention:
1. contact: direct skin contact should be avoided. if contact occurs, rinse immediately with plenty of water.
2 inhalation: should avoid inhalation of its dust, if the inhalation of excessive dust, should go to a well-ventilated place, keep rest.
3. Fire resistance: This compound is a flammable substance and should be stored away from fire sources.
4. storage: should be stored in a dry, cool place, away from direct sunlight.
Nature:
1. Appearance: acid is a light yellow solid.
2. Solubility: It is soluble in water, but has poor solubility in organic solvents.
3. pH value: its acidity is strong, and the pH value is generally between 2 and 3.
4. Melting point: The melting point of this compound is about 284-286 degrees Celsius.
Use:
1. Dye: It can be used as a synthetic intermediate for organic dyes and can be used for color adjustment of dyes.
2. indicator: due to the nature of its acid-base indicator, it is widely used in chemical analysis methods such as acid-base titration.
3. photosensitive material: the compound can be used to prepare photosensitive materials, such as photosensitive materials used in the photographic and printing industries.
Preparation Method:
The preparation method of acid is more complicated and generally requires a multi-step reaction. These include the reaction of methylated naphthyl compounds with nitrous acid through a series of organic synthesis reactions to obtain 6-methoxy-4-hydroxy-2-naphthalenesulfonic acid. Subsequent reduction and amination reactions give the final product, acid.
Safety Information:
The safety of this compound is high, but the following matters still need to be paid attention:
1. contact: direct skin contact should be avoided. if contact occurs, rinse immediately with plenty of water.
2 inhalation: should avoid inhalation of its dust, if the inhalation of excessive dust, should go to a well-ventilated place, keep rest.
3. Fire resistance: This compound is a flammable substance and should be stored away from fire sources.
4. storage: should be stored in a dry, cool place, away from direct sunlight.
Last Update：2024-04-10 22:29:15
