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Basic Description
| Synonyms | Neothorin | 3-[2-(2-Arsonophenyl)diazenyl]-4,5-dihydroxy-2,7-naphthalenedisulfonic acid sodium salt (1:2) | ARSENAZO I DISODIUM SALT | disodium;3-[(2-arsonophenyl)diazenyl]-4,5-dihydroxynaphthalene-2,7-disulfonate | 2,7-Naphthalenedisulfonic acid, 3-[(2-a |
|---|---|
| Specifications & Purity | ≥90% |
| Storage Temp | Protected from light,Desiccated |
| Shipped In | Normal |
Names and Identifiers
| Pubchem Sid | 488203002 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/488203002 |
| IUPAC Name | disodium;3-[(2-arsonophenyl)diazenyl]-4,5-dihydroxynaphthalene-2,7-disulfonate |
| INCHI | InChI=1S/C16H13AsN2O11S2.2Na/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);;/q;2*+1/p-2 |
| InChi Key | XRURKGOGGBIGRV-UHFFFAOYSA-L |
| Canonical SMILES | C1=CC=C(C(=C1)N=NC2=C(C3=C(C=C(C=C3C=C2S(=O)(=O)[O-])S(=O)(=O)[O-])O)O)[As](=O)(O)O.[Na+].[Na+] |
| Isomeric SMILES | C1=CC=C(C(=C1)N=NC2=C(C3=C(C=C(C=C3C=C2S(=O)(=O)[O-])S(=O)(=O)[O-])O)O)[As](=O)(O)O.[Na+].[Na+] |
| WGK Germany | 3 |
| UN Number | 3465 |
| Molecular Weight | 592.29648(as Anhydrous) |
| Beilstein | 4111439 |
| Reaxy-Rn | 4111439 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=4111439&ln= |
Certificates（CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:
Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Date | Item |
|---|---|---|---|
 E2114301 | Certificate of Analysis | Feb 08, 2025 | N113411 |
| E23171128 | Certificate of Analysis | Mar 25, 2023 | N113411 |
| E2317861 | Certificate of Analysis | Mar 25, 2023 | N113411 |
| E23171104 | Certificate of Analysis | Mar 25, 2023 | N113411 |
| E23171096 | Certificate of Analysis | Mar 25, 2023 | N113411 |
Chemical and Physical Properties
| Solubility | Soluble in water |
|---|---|
| Sensitivity | Light sensitive. |
| Melt Point(°C) | ≥300°C |
| Molecular Weight | 592.300 g/mol |
| XLogP3 | |
| Hydrogen Bond Donor Count | 4 |
| Hydrogen Bond Acceptor Count | 13 |
| Rotatable Bond Count | 3 |
| Exact Mass | 591.882 Da |
| Monoisotopic Mass | 591.882 Da |
| Topological Polar Surface Area | 254.000 Ų |
| Heavy Atom Count | 34 |
| Formal Charge | 0 |
| Complexity | 944.000 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| The total count of all stereochemical bonds | 0 |
| Covalently-Bonded Unit Count | 3 |
Safety and Hazards(GHS)
| Pictogram(s) | GHS06, GHS09 |
|---|---|
| Signal | Danger |
| Hazard Statements | H301:Toxic if swallowed H331:Toxic if inhaled H400:Very toxic to aquatic life H410:Very toxic to aquatic life with long lasting effects |
| Precautionary Statements | P261:Avoid breathing dust/fume/gas/mist/vapors/spray. P273:Avoid release to the environment. P321:Specific treatment (see ... on this label). P405:Store locked up. P501:Dispose of contents/container to ... P264:Wash hands [and …] thoroughly after handling. P271:Use only outdoors or in a well-ventilated area. P270:Do not eat, drink or smoke when using this product. P304+P340:IF INHALED: Remove person to fresh air and keep comfortable for breathing. P403+P233:Store in a well-ventilated place. Keep container tightly closed. P391:Collect spillage. P330:Rinse mouth. P301+P316:IF SWALLOWED: Get emergency medical help immediately. P316:Get emergency medical help immediately. |
| WGK Germany | 3 |
| Reaxy-Rn | 4111439 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=4111439&ln= |
Specifications
| Ignition Residue (as sulfate)(anhydrous) | 32-37（%） |
|---|---|
| Absorbance(20 mg/L, pH 6.3, 498.0 to 502.0 nm) | ≥0.7 |
| Loss on drying | 0-10（%） |
| Solubility in H2O | Almost transparency |
| Solubility in MeOH，Clear , Red ,c = 1 mg/mL | pass |
| Purity(HPLC area) | 90-100（%） |