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
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 |
| Description | 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 | Date | Article |
|---|---|---|---|
| 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 |
| Solubilité | 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. |
|---|---|
| Poids moléculaire | 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 →