7143-21-7

• 常用中文名：β-萘酚紫
• 常用英文名：2,7-Naphthalenedisulfonicacid, 3-hydroxy-4-[2-(4-nitrophenyl)diazenyl]-, sodium salt (1:2)
• CAS号：7143-21-7
• 分子式：C₁₆H₉N₃Na₂O₉S₂
• 分子量：497.367
• 发布时间：2018-06-26 21:48:39
• 更新时间：2025-08-25 18:04:24

名称

• 中文名: β-萘酚紫
• 英文名: β-Naphthol Violet
• 中文别名: 1-(4-硝基苯偶氮基)-2-萘酚-3,6-二磺酸二钠盐; 萘酚紫; 4-[[4-(苯甲酰氨基)-2-甲氧基-5-甲基苯基]偶氮]-3-羟基-N-苯基-2-萘甲酰胺
• 英文别名: Disodium 3-hydroxy-4-[(E)-(4-nitrophenyl)diazenyl]-2,7-naphthalenedisulfonate; MFCD00021457; ~-Naphthol Violet; EINECS 230-443-7; 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[(E)-2-(4-nitrophenyl)diazenyl]-, sodium salt (1:2); Disodium 3-hydroxy-4-[(E)-(4-nitrophenyl)diazenyl]naphthalene-2,7-disulfonate; Disodium 3-hydroxy-4-((4-nitrophenyl)azo)naphthalene-2,7-disulphonate

物化性质

• 密度: 1.8g/cm3
• 分子式: C₁₆H₉N₃Na₂O₉S₂
• 分子量: 497.367
• 精确质量: 496.957550
• PSA: 221.93000
• LogP: 5.36200
• 外观性状: 固体;Dark red to Brown powder to crystal
• 折射率: 1.749
• 储存条件:

  密封于阴凉干燥处。

• 稳定性:

  遵照规格使用和储存则不会分解。

• 分子结构:

  1、摩尔折射率：无可用

  2、 摩尔体积（cm³/mol）： 无可用

  3、 等张比容（90.2K）：无可用

  4、 表面张力（dyne/cm）：无可用

• 计算化学:

  1、 疏水参数计算参考值（XlogP）：无可用

  2、 氢键供体数量：1

  3、 氢键受体数量：11

  4、 可旋转化学键数量：2

  5、 拓扑分子极性表面积（TPSA）：199

  6、 重原子数量：32

  7、 表面电荷：0

  8、 复杂度：952

  9、 同位素原子数量：0

  10、 确定原子立构中心数量：0

  11、 不确定原子立构中心数量：0

  12、 确定化学键立构中心数量：1

  13、 不确定化学键立构中心数量：0

  14、 共价键单元数量：3

• 更多:

  1. 性状：深红色粉末.

  2. 密度（g/mL,25/4℃）： 无可用

  4. 熔点（ºC）：无可用

  5. 沸点（ºC,常压）：无可用

  6. 沸点（ºC,5.2kPa）： 无可用

  7. 折射率： 无可用

  8. 闪点（ºC）：无可用

  9. 比旋光度（º）：无可用

  10. 自燃点或引燃温度（ºC）：无可用

  11. 蒸气压（kPa,25ºC）：无可用

  12. 饱和蒸气压（kPa,60ºC）：无可用

  13. 燃烧热（KJ/mol）：无可用

  14. 临界温度（ºC）：无可用

  15. 临界压力（KPa）：无可用

  16. 油水（辛醇/水）分配系数的对数值：无可用

  17. 爆炸上限（%,V/V）：无可用

  18. 爆炸下限（%,V/V）： 无可用

  19. 溶解性：可溶于水

MSDS

β-Naphthol Violet Revision number: 5 SAFETY DATA SHEET Section1. IDENTIFICATION Product name:β-Naphthol Violet Revision number:5 Section2. HAZARDS IDENTIFICATION GHS classification PHYSICAL HAZARDSNot classified HEALTH HAZARDSNot classified ENVIRONMENTAL HAZARDSNot classified GHS label elements, including precautionary statements Pictograms or hazard symbolsNone Signal wordNo signal word Hazard statementsNone Precautionary statements:None Section3. COMPOSITION/INFORMATION ON INGREDIENTS Substance Substance/mixture: Components:β-Naphthol Violet Percent:.... CAS Number:7143-21-7 Synonyms:1-(4-Nitrophenylazo)-2-naphthol-3,6-disulfonic Acid Disodium Salt Chemical Formula:C16H9N3Na2O9S2 Section4. FIRST AID MEASURES Inhalation:Remove victim to fresh air and keep at rest in a position comfortable for breathing. Get medical advice/attention if you feel unwell. Skin contact:Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. If skin irritation or rash occurs: Get medical advice/attention. Eye contact:Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical advice/attention. Ingestion:Get medical advice/attention if you feel unwell. Rinse mouth. A rescuer should wear personal protective equipment, such as rubber gloves and air- Protection of first-aiders: tight goggles. Section5. FIRE-FIGHTING MEASURES Suitable extinguishingDry chemical, foam, water spray, carbon dioxide. media: Specific hazards arising Take care as it may decompose upon combustion or in high temperatures to from the chemical:generate poisonous fume. β-Naphthol Violet Section5. FIRE-FIGHTING MEASURES Precautions for firefighters: Fire-extinguishing work is done from the windward and the suitable fire-extinguishing method according to the surrounding situation is used. Uninvolved persons should evacuate to a safe place. In case of fire in the surroundings: Remove movable containers if safe to do so. When extinguishing fire, be sure to wear personal protective equipment. Special protective equipment for firefighters: Section6. ACCIDENTAL RELEASE MEASURES Personal precautions,Use personal protective equipment. Keep people away from and upwind of spill/leak. protective equipment and Entry to non-involved personnel should be controlled around the leakage area by emergency procedures: roping off, etc. Environmental precautions: Prevent product from entering drains. Methods and materials for Sweep dust to collect it into an airtight container, taking care not to disperse it. containment and cleaning Adhered or collected material should be promptly disposed of, in accordance with up: appropriate laws and regulations. Section7. HANDLING AND STORAGE Precautions for safe handling Technical measures:Handling is performed in a well ventilated place. Wear suitable protective equipment. Prevent dispersion of dust. Wash hands and face thoroughly after handling. Use a local exhaust if dust or aerosol will be generated. Advice on safe handling: Avoid contact with skin, eyes and clothing. Conditions for safe storage, including any incompatibilities Storage conditions:Keep container tightly closed. Store in a cool and dark place. Store away from incompatible materials such as oxidizing agents. Packaging material:Comply with laws. Section8. EXPOSURE CONTROLS / PERSONAL PROTECTION Engineering controls:Install a closed system or local exhaust as possible so that workers should not be exposed directly. Also install safety shower and eye bath. Personal protective equipment Respiratory protection: Dust respirator. Follow local and national regulations. Hand protection:Protective gloves. Eye protection:Safety glasses. A face-shield, if the situation requires. Skin and body protection: Protective clothing. Protective boots, if the situation requires. Section9. PHYSICAL AND CHEMICAL PROPERTIES Solid Physical state (20°C): Form:Crystal- Powder Colour:Deep yellow red - Deep red Odour:No data available pH: No data available Melting point/freezing point:No data available Boiling point/range:No data available Flash point:No data available Flammability or explosive limits: Lower:No data available No data available Upper: Relative density:No data available Solubility(ies): [Water]No data available [Other solvents]No data available β-Naphthol Violet Section10. STABILITY AND REACTIVITY Stable under proper conditions. Chemical stability: Possibility of hazardous No special reactivity has been reported. reactions: Incompatible materials: Oxidizing agents Hazardous decomposition Carbon monoxide, Carbon dioxide, Nitrogen oxides (NOx), Sulfur oxides products: Section11. TOXICOLOGICAL INFORMATION Acute Toxicity:No data available Skin corrosion/irritation: No data available Serious eyeNo data available damage/irritation: Germ cell mutagenicity: No data available Carcinogenicity: IARC =No data available NTP =No data available Reproductive toxicity:No data available Section12. ECOLOGICAL INFORMATION Ecotoxicity: Fish:No data available No data available Crustacea: Algae:No data available Persistence / degradability: No data available BioaccumulativeNo data available potential(BCF): Mobility in soil No data available Log Pow: Soil adsorption (Koc):No data available No data available Henry's Law constant(PaM3/mol): Section13. DISPOSAL CONSIDERATIONS Recycle to process, if possible. Consult your local regional authorities. You may be able to dissolve or mix material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber system. Observe all federal, state and local regulations when disposing of the substance. Section14. TRANSPORT INFORMATION Does not correspond to the classification standard of the United Nations Hazards Class: UN-No:Not listed Section15. REGULATORY INFORMATION Safe management ordinance of dangerous chemical product (State Council announces on January 26, 2002 and revised on February 16,2011): Safe use and production, the storage of a dangerous chemical, transport, loading and unloading were prescribed. β-Naphthol Violet SECTION 16 - ADDITIONAL INFORMATION N/A

毒性和生态

生态学数据: 该物质对环境可能有危害，对水体应给予特别注意。

安全

• 风险声明 (欧洲): R36/37/38
• 安全声明 (欧洲): S26-S36