Neothorin
Arsenazo I
CAS: 520-10-5
Molecular Formula: C16H13AsN2O11S2
Neothorin - Names and Identifiers
| Name | Arsenazo I |
| Synonyms | ARSENAZO Arsenazo Neothovin Neothorin Neothoron Arsenazo I ARSENAZO 1 ARSENAZO I 2-(2-ARSONOPHENYLAZO)CHROMOTROPIC ACID DISODIUM SALT O-(1,8-DIHYDROXY-3,6-DISULFO-2-NAPHTHYLAZO)BENZENEARSONIC ACID SODIUM SALT 2-(O-ARSONOPHENYLAZO)-1,8-DIHYDROXYNAPHTHALENEDISULFONIC ACID, SODIUM SALT 2-(1,8-DIHYDROXY-3,6-DISULFO-2-NAPHTHYLAZO)PHENYLARSONIC ACID DISODIUM SALT 2-(1,8-DIHYDROXY-3,6-DISULFO-2-NAPHTHYLAZO)BENZENEARSONIC ACID TRISODIUM SALT (3E)-3-[(2-arsonophenyl)hydrazono]-5-hydroxy-4-oxo-3,4-dihydronaphthalene-2,7-disulfonic acid |
| CAS | 520-10-5 |
| EINECS | 208-285-5 |
| InChI | InChI=1/C16H13AsN2O11S2/c20-12-7-9(31(25,26)27)5-8-6-13(32(28,29)30)15(16(21)14(8)12)19-18-11-4-2-1-3-10(11)17(22,23)24/h1-7,20-21H,(H2,22,23,24)(H,25,26,27)(H,28,29,30)/b19-18+ |
Neothorin - Physico-chemical Properties
| Molecular Formula | C16H13AsN2O11S2 |
| Molar Mass | 548.33 |
| Melting Point | ≥300°C(lit.) |
| Solubility | methanol: 1mg/mL, clear, red |
| Appearance | Dark red powder. |
| pKa | -0.71±0.40(Predicted) |
| Storage Condition | Room Temprature |
| Sensitive | Sensitive to light |
| MDL | MFCD00066725 |
| Use | Sensitive reagent for Colorimetric Determination of uranium, thorium and rare earth elements |
Neothorin - 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 |
Neothorin - Reference Information
| use | as a sensitive reagent for colorimetric determination of uranium, thorium and rare earth elements |
Last Update：2024-04-09 21:04:16
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CAS: 520-10-5
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