carboxyarsenazo
carboxyarsenazo iii
CAS: 3772-44-9
Molecular Formula: C23H17AsN4O13S2
carboxyarsenazo - Names and Identifiers
| Name | carboxyarsenazo iii |
| Synonyms | carboxyarsenazo Einecs 223-216-9 carboxyarsenazo iii CARBOXYARSENAZO III o-CarboxyarsenazoIII CARBOXYARSENAZO III INDICATOR 2-(2-Arsonophenylazo)-7-(2-carboxyphenylazo)chromotropic acid 2-[[7-[(2-arsonophenyl)azo]-1,8-dihydroxy-3,6-disulpho-2-naphthyl]azo]benzoic acid 6-(2-Arsonophenylazo)-3-(2-carboxyphenylazo)-4,5-dihydroxynaphthalene-2,7-disulfonic acid |
| CAS | 3772-44-9 |
| EINECS | 223-216-9 |
| InChI | InChI=1/C23H17AsN4O13S2/c29-21-18-11(9-16(42(36,37)38)19(21)27-25-14-7-3-1-5-12(14)23(31)32)10-17(43(39,40)41)20(22(18)30)28-26-15-8-4-2-6-13(15)24(33,34)35/h1-10,25-26H,(H,31,32)(H2,33,34,35)(H,36,37,38)(H,39,40,41)/b27-19-,28-20+ |
carboxyarsenazo - Physico-chemical Properties
| Molecular Formula | C23H17AsN4O13S2 |
| Molar Mass | 696.45 |
| Storage Condition | 2-8°C |
carboxyarsenazo - Risk and Safety
| Risk Codes | R23/25 - Toxic by inhalation and if swallowed. R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S20/21 - S28 - After contact with skin, wash immediately with plenty of soap-suds. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
| UN IDs | UN 3465 6.1/PG 3 |
| WGK Germany | 3 |
| Hazard Class | 6.1(b) |
| Packing Group | III |
carboxyarsenazo - Introduction
carboxyarsenazo iii(carboxyarsenazo iii) is an organic compound with the formula C22H16AsN5NaO10S3. It is a water-soluble red powder with a maximum absorption wavelength in the acidic pH range between 520-540 nm.
carboxyarsenazo III is often used as an indicator and dye in analytical chemistry. It can be used to determine the concentration of metal ions (such as aluminum, cobalt, copper, etc.), as well as the qualitative and quantitative analysis of phosphates and ketones. In addition, due to its absorption wavelength matching the visible light range, carboxyarsenazo iii is also used for fluorescence microscopy in the fields of biochemistry and medicine.
The method for preparing carboxyarsenazo iii is usually by azotization of sodium carbonate (Na2CO3) and 3-hydroxy-4-nitrobenzene, followed by reaction with 2-aminoethanesulfonic acid to obtain a finished product.
When using carboxyarsenazo III, you need to pay attention to its safety. Because it contains arsenic, it needs to be used and stored carefully, avoiding inhalation, skin contact and ingestion. Appropriate protective equipment such as gloves, goggles and protective masks should be worn. When handling carboxyarsenazo iii solutions, ensure that the operation is carried out in a well-ventilated laboratory environment. In the event of an accident, immediately stay away from the scene and seek professional first aid.
carboxyarsenazo III is often used as an indicator and dye in analytical chemistry. It can be used to determine the concentration of metal ions (such as aluminum, cobalt, copper, etc.), as well as the qualitative and quantitative analysis of phosphates and ketones. In addition, due to its absorption wavelength matching the visible light range, carboxyarsenazo iii is also used for fluorescence microscopy in the fields of biochemistry and medicine.
The method for preparing carboxyarsenazo iii is usually by azotization of sodium carbonate (Na2CO3) and 3-hydroxy-4-nitrobenzene, followed by reaction with 2-aminoethanesulfonic acid to obtain a finished product.
When using carboxyarsenazo III, you need to pay attention to its safety. Because it contains arsenic, it needs to be used and stored carefully, avoiding inhalation, skin contact and ingestion. Appropriate protective equipment such as gloves, goggles and protective masks should be worn. When handling carboxyarsenazo iii solutions, ensure that the operation is carried out in a well-ventilated laboratory environment. In the event of an accident, immediately stay away from the scene and seek professional first aid.
Last Update：2024-04-10 22:29:15
