for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Room temperature Ships Normal Check lot-specific COA for exact specifications.
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Azure B eosinate is a small molecule dye useful in hematology and histology applications.
| Pubchem Sid | 488192243 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/488192243 |
| Canonical Smiles | CNC1=CC2=C(C=C1)N=C3C=CC(=[N+](C)C)C=C3S2.CNC1=CC2=C(C=C1)N=C3C=CC(=[N+](C)C)C=C3S2.C1=CC=C2C(=C1)C(=O)OC23C4=CC(=C(C(=C4OC5=C(C(=C(C=C35)Br)[O-])Br)Br)[O-])Br |
| IUPAC Name | dimethyl-[7-(methylamino)phenothiazin-3-ylidene]azanium;2',4',5',7'-tetrabromo-3-oxospiro[2-benzofuran-1,9'-xanthene]-3',6'-diolate |
| InChIKey | NCBQBFXQRBYYGY-UHFFFAOYSA-N |
| INCHI | 1S/C20H8Br4O5.2C15H15N3S/c21-11-5-9-17(13(23)15(11)25)28-18-10(6-12(22)16(26)14(18)24)20(9)8-4-2-1-3-7(8)19(27)29-20;2*1-16-10-4-6-12-14(8-10)19-15-9-11(18(2)3)5-7-13(15)17-12/h1-6,25-26H;2*4-9H,1-3H3 |
| Isomeric SMILES | CNC1=CC2=C(C=C1)N=C3C=CC(=[N+](C)C)C=C3S2.CNC1=CC2=C(C=C1)N=C3C=CC(=[N+](C)C)C=C3S2.C1=CC=C2C(=C1)C(=O)OC23C4=CC(=C(C(=C4OC5=C(C(=C(C=C35)Br)[O-])Br)Br)[O-])Br |
| WGK Germany | 3 |
| PubChem CID | 2724069 |
| Molecular Weight | 1186.6 |
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA →Full quality attributes and acceptance criteria for this grade.
View spec sheet →Taxonomy Tree
| Kingdom | Organic compounds |
|---|---|
| Superclass | Organoheterocyclic compounds |
| Class | Benzopyrans |
| Subclass | 1-benzopyrans |
| Intermediate Tree Nodes | Dibenzopyrans |
| Direct Parent | Xanthenes |
| Alternative Parents | Diarylethers Phthalides Benzofuranones Benzothiazines Isobenzofurans Secondary alkylarylamines Phenoxides Aryl bromides Secondary ketimines Heteroaromatic compounds Carboxylic acid esters Lactones Oxacyclic compounds Azacyclic compounds Monocarboxylic acids and derivatives Organic salts Organic zwitterions Organobromides Organic oxides Hydrocarbon derivatives Organopnictogen compounds |
| Molecular Framework | Not available |
| Substituents | Xanthene - Diaryl ether - Benzofuranone - Benzothiazine - Isobenzofuranone - Phthalide - Isocoumaran - Isobenzofuran - Phenoxide - Secondary aliphatic/aromatic amine - Aryl bromide - Aryl halide - Benzenoid - Heteroaromatic compound - Secondary ketimine - Carboxylic acid ester - Lactone - Carboxylic acid derivative - Secondary amine - Azacycle - Oxacycle - Ether - Monocarboxylic acid or derivatives - Organic zwitterion - Organohalogen compound - Organobromide - Organonitrogen compound - Organooxygen compound - Hydrocarbon derivative - Amine - Organic oxide - Organopnictogen compound - Organic oxygen compound - Organic nitrogen compound - Organic salt - Aromatic heteropolycyclic compound |
| Description | This compound belongs to the class of organic compounds known as xanthenes. These are polycyclic aromatic compounds containing a xanthene moiety, which consists of two benzene rings joined to each other by a pyran ring. |
| External Descriptors | Not available |
Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Date | Item |
|---|---|---|---|
 F2313833 | Certificate of Analysis | Mar 18, 2026 | A331879 |
| F2313834 | Certificate of Analysis | Mar 18, 2026 | A331879 |
| F2313836 | Certificate of Analysis | Mar 18, 2026 | A331879 |
| F2313837 | Certificate of Analysis | Mar 18, 2026 | A331879 |
| F2313838 | Certificate of Analysis | Mar 18, 2026 | A331879 |
| F2313841 | Certificate of Analysis | Mar 18, 2026 | A331879 |
| F2313842 | Certificate of Analysis | Mar 18, 2026 | A331879 |
| F2313847 | Certificate of Analysis | Mar 18, 2026 | A331879 |
| Solubility | Soluble in water，acetic acid: 1 mg/mL |
|---|---|
| Refractive Index | n20D~1.89 (Predicted) |
| Boil Point(°C) | 640.3° C at 760 mmHg (Predicted) |
| Molecular Weight | 1186.600 g/mol |
| XLogP3 | |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 11 |
| Rotatable Bond Count | 2 |
| Exact Mass | 1185.9 Da |
| Monoisotopic Mass | 1181.91 Da |
| Topological Polar Surface Area | 187.000 Ų |
| Heavy Atom Count | 67 |
| Formal Charge | 0 |
| Complexity | 1140.000 |
| 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 |
