137-51-9

• 常用中文名：苯胺-2,4-二磺酸
• 常用英文名：4-Amino-1,3-benzenedisulfonic acid
• CAS号：137-51-9
• 分子式：C₆H₇NO₆S₂
• 分子量：253.25300
• 相关类别： 有机原料 羧酸类化合物及衍生物 羧酸的卤化、磺化、硝化或亚硝化衍生物
• 发布时间：2018-04-11 08:00:00
• 更新时间：2024-01-10 11:21:43
• 【用途一】
  可作染料中间体。

名称

• 中文名: 苯胺-2,4-二磺酸
• 英文名: 4-Aminobenzene-1,3-disulfonic acid
• 中文别名: 2,4-二磺酸苯胺; 4-氨基-1,3-苯二磺酸
• 英文别名: EINECS 205-299-3; MFCD00035903; 4-aminobenzene-1,3-disulfonic acid

物化性质

• 密度: 1.844 g/cm3
• 分子式: C₆H₇NO₆S₂
• 分子量: 253.25300
• 精确质量: 252.97100
• PSA: 151.52000
• LogP: 2.50500
• 外观性状: 白色粉末
• 折射率: 1.666
• 储存条件: 室温，干燥
• 分子结构:

  分子性质数据：

  1、 摩尔折射率：51.06

  2、 摩尔体积（m³/mol）：137.2

  3、 等张比容（90.2K）：423.1

  4、 表面张力（3.0 dyne/cm）：90.2

  5、 极化率（0.5 10 ^-24cm ³）：20.24

• 计算化学:

  1.疏水参数计算参考值（XlogP）:无

  2.氢键供体数量:3

  3.氢键受体数量:7

  4.可旋转化学键数量:2

  5.互变异构体数量:无

  6.拓扑分子极性表面积152

  7.重原子数量:15

  8.表面电荷:0

  9.复杂度:416

  10.同位素原子数量:0

  11.确定原子立构中心数量:0

  12.不确定原子立构中心数量:0

  13.确定化学键立构中心数量:0

  14.不确定化学键立构中心数量:0

  15.共价键单元数量:1

MSDS

Material Safety Data Sheet Section1. Identification of the substance Product Name: Aniline-2,4-disulfonic acid Synonyms: Section2. Hazards identification Harmful by inhalation, in contact with skin, and if swallowed. Section3. Composition/information on ingredients. Ingredient name:Aniline-2,4-disulfonic acid CAS number:137-51-9 Section4. First aid measures Skin contact:Immediately wash skin with copious amounts of water for at least 15 minutes while removing contaminated clothing and shoes. If irritation persists, seek medical attention. Eye contact:Immediately wash skin with copious amounts of water for at least 15 minutes. Assure adequate flushing of the eyes by separating the eyelids with fingers. If irritation persists, seek medical attention. Inhalation:Remove to fresh air. In severe cases or if symptoms persist, seek medical attention. Ingestion:Wash out mouth with copious amounts of water for at least 15 minutes. Seek medical attention. Section5. Fire fighting measures In the event of a fire involving this material, alone or in combination with other materials, use dry powder or carbon dioxide extinguishers. Protective clothing and self-contained breathing apparatus should be worn. Section6. Accidental release measures Personal precautions: Wear suitable personal protective equipment which performs satisfactorily and meets local/state/national standards. Respiratory precaution:Wear approved mask/respirator Hand precaution:Wear suitable gloves/gauntlets Skin protection:Wear suitable protective clothing Eye protection:Wear suitable eye protection Methods for cleaning up: Mix with sand or similar inert absorbent material, sweep up and keep in a tightly closed container for disposal. See section 12. Environmental precautions: Do not allow material to enter drains or water courses. Section7. Handling and storage Handling:This product should be handled only by, or under the close supervision of, those properly qualified in the handling and use of potentially hazardous chemicals, who should take into account the fire, health and chemical hazard data given on this sheet. Store in closed vessels. Storage: Section8. Exposure Controls / Personal protection Engineering Controls: Use only in a chemical fume hood. Personal protective equipment: Wear laboratory clothing, chemical-resistant gloves and safety goggles. General hydiene measures: Wash thoroughly after handling. Wash contaminated clothing before reuse. Section9. Physical and chemical properties Appearance:Not specified Boiling point:No data No data Melting point: Flash point:No data Density:No data Molecular formula:C6H7NO6S2 Molecular weight:253.3 Section10. Stability and reactivity Conditions to avoid: Heat, flames and sparks. Materials to avoid: Oxidizing agents. Possible hazardous combustion products: Carbon monoxide, nitrogen oxides, sulfur oxides. Section11. Toxicological information No data. Section12. Ecological information No data. Section13. Disposal consideration Arrange disposal as special waste, by licensed disposal company, in consultation with local waste disposal authority, in accordance with national and regional regulations. Section14. Transportation information Non-harzardous for air and ground transportation. Section15. Regulatory information No chemicals in this material are subject to the reporting requirements of SARA Title III, Section 302, or have known CAS numbers that exceed the threshold reporting levels established by SARA Title III, Section 313. SECTION 16 - ADDITIONAL INFORMATION N/A

安全

• 危害码 (欧洲): Xn
• 风险声明 (欧洲): R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
• 安全声明 (欧洲): S26-S37/39
• 危险品运输编码: UN3439
• 包装等级: III
• 危险类别: 6.1
• 海关编码: 2921499090

合成路线

142-08-5 108-77-0 ~% 137-51-9

文献：US4039523 A1, ;

121-57-3 ~% 137-51-9

文献：Chemische Berichte, , vol. 21, p. 3413

88-21-1 ~% 137-51-9

文献：Justus Liebigs Annalen der Chemie, , vol. 198, p. 10

7664-93-9 121-57-3 ~% 137-51-9

文献：Justus Liebigs Annalen der Chemie, , vol. 100, p. 164

7664-93-9 103-84-4 ~% 54322-33-7 137-51-9

文献：Journal of the Chemical Society, , vol. 75, p. 278,280 Recueil des Travaux Chimiques des Pays-Bas, , vol. 49, p. 1107,1109

88-21-1 7664-93-9 ~% 137-51-9

文献：Justus Liebigs Annalen der Chemie, , vol. 198, p. 10

23133-97-3 7664-41-7 ~% 137-51-9

文献：Chemische Berichte, , vol. 24, p. 3805

上下游产品

上游产品  8
142-08-5 108-77-0 121-57-3 88-21-1
7664-93-9 103-84-4 23133-97-3 7664-41-7
下游产品  5
88-89-1 27886-55-1 64755-08-4 87743-18-8
78824-10-9

制备

由对氨基苯磺酸经发烟硫酸磺化而得。磺化锅内放入20%发烟硫酸，在搅拌下缓缓加入干燥的对氨基苯磺酸，加料时温度控制50℃，加料后搅拌20min，然后升温至60℃，保温1h，再升至80℃保温1h，再升至100℃，保温1h，最后升至128℃，保温5h，取样检定（取样品2ml，稀释于40ml蒸馏水中，振荡使之全溶，以得澄清溶液为准）。再在128℃搅拌3h，然后降温至75℃放料，收率98%

海关

海关编码	2921499090
中文概述	2921499090 其他芳香单胺及衍生物及它们的盐. 增值税率:17.0% 退税率:9.0% 监管条件:无 最惠国关税:6.5% 普通关税:30.0%
申报要素	品名, 成分含量, 用途
Summary	2921499090 other aromatic monoamines and their derivatives; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%