Determine the necessary mass, volume, or concentration for preparing a solution.
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Biological stain Biological Stain 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.
Orcein (Synthetic) is a red dye used in microscopy as a mordant for the staining of flagella, as well as for detecting elastic tissue in sputum.
Red in acidic pH and blue in alkaline pH
| Pubchem Sid | 488184702 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/488184702 |
| Sorrisi canonici | CC1=CC(=CC(=C1NC2=C(C3=C(C=C2O)OC4=CC(=O)C(=NC5=C(C=C(C=C5C)O)O)C(=C43)C)C)O)O |
| IUPAC Name | 8-(2,4-dihydroxy-6-methylanilino)-2-(2,4-dihydroxy-6-methylphenyl)imino-7-hydroxy-1,9-dimethyldibenzofuran-3-one |
| InChIKey | QFIIYGZAUXVPSZ-UHFFFAOYSA-N |
| INCHI | 1S/C28H24N2O7/c1-11-5-15(31)7-17(33)25(11)29-27-13(3)23-21(9-19(27)35)37-22-10-20(36)28(14(4)24(22)23)30-26-12(2)6-16(32)8-18(26)34/h5-10,29,31-35H,1-4H3 |
| Isomeri SMILES | CC1=CC(=CC(=C1NC2=C(C3=C(C=C2O)OC4=CC(=O)C(=NC5=C(C=C(C=C5C)O)O)C(=C43)C)C)O)O |
| WGK Germania | 3 |
| PubChem CID | 72685 |
| Peso molecolare | 500.5 |
| Beilstein | 6885 |
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 |
| Classe | Benzofurans |
| Subclass | Not available |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Benzofurans |
| Alternative Parents | p-Aminophenols o-Aminophenols Resorcinols Meta cresols Aniline and substituted anilines Aminotoluenes 1-hydroxy-4-unsubstituted benzenoids 1-hydroxy-2-unsubstituted benzenoids Secondary ketimines Heteroaromatic compounds Furans Azomethines Cyclic ketones Secondary amines Propargyl-type 1,3-dipolar organic compounds Oxacyclic compounds Organopnictogen compounds Organic oxides Hydrocarbon derivatives |
| Molecular Framework | Aromatic heteropolycyclic compounds |
| Substituents | Benzofuran - P-aminophenol - O-aminophenol - Aminotoluene - Aniline or substituted anilines - Resorcinol - M-cresol - Aminophenol - 1-hydroxy-4-unsubstituted benzenoid - 1-hydroxy-2-unsubstituted benzenoid - Toluene - Phenol - Benzenoid - Monocyclic benzene moiety - Heteroaromatic compound - Secondary ketimine - Furan - Azomethine - Cyclic ketone - Ketone - Ketimine - Oxacycle - Organic 1,3-dipolar compound - Propargyl-type 1,3-dipolar organic compound - Secondary amine - Organic nitrogen compound - Organic oxygen compound - Organopnictogen compound - Organic oxide - Hydrocarbon derivative - Organooxygen compound - Organonitrogen compound - Imine - Carbonyl group - Amine - Aromatic heteropolycyclic compound |
| Descrizione | This compound belongs to the class of organic compounds known as benzofurans. These are organic compounds containing a benzene ring fused to a furan. Furan is a five-membered aromatic ring with four carbon atoms and one oxygen atom. |
| External Descriptors | Not available |
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Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Data | Oggetto |
|---|---|---|---|
| Certificate of Analysis | Oct 13, 2025 | O121730 | |
| Certificate of Analysis | Oct 13, 2025 | O121730 | |
| Certificate of Analysis | Oct 13, 2025 | O121730 | |
| Certificate of Analysis | Oct 13, 2025 | O121730 | |
| Certificate of Analysis | Oct 13, 2025 | O121730 | |
| Certificate of Analysis | Feb 23, 2024 | O121730 | |
| Certificate of Analysis | Mar 09, 2023 | O121730 |
| Solubilità | Soluble in acetone, alcolhol, acetic acid (red color), and dillute aqueous alkali (blue-violet color). Insoluble in water., Soluble in acetone, alcolhol, acetic acid (red color), and dillute aqueous alkali (blue-violet color). Insoluble in water. |
|---|---|
| Peso molecolare | 500.500 g/mol |
| XLogP3 | 3.900 |
| Hydrogen Bond Donor Count | 6 |
| Hydrogen Bond Acceptor Count | 9 |
| Rotatable Bond Count | 3 |
| Exact Mass | 500.158 Da |
| Monoisotopic Mass | 500.158 Da |
| Topological Polar Surface Area | 152.000 Ų |
| Heavy Atom Count | 37 |
| Formal Charge | 0 |
| Complexity | 1010.000 |
| 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 | 1 |
Our grade selection guide covers purity, stabilizer status, and application suitability for all variants in our catalog.
View Biological Stain grade guide →