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Biological Stain Biological Stain for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Protected from light,Room temperature,Desiccated 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 187 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Rose Bengal is the sodium salt of tetraiodotetrachlorouorescein, C20H2O5I4Cl4Na2. It is an anionic water-soluble xanthene dye.
Product Application:
Rose bengal has several microbilogical staining applications including:
Conn′s technique for bacteria in soil and Kreyberg′s stain for keratin and mucus
counterstaining hematoxylin
staining cellular inclusions, together with Bismark brown
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 | Benzopyrans |
| Subclass | 1-benzopyrans |
| Intermediate Tree Nodes | Dibenzopyrans |
| Direct Parent | Xanthenes |
| Alternative Parents | Diarylethers Phthalides Benzofuranones Isobenzofurans Phenoxides Aryl chlorides Aryl iodides Vinylogous halides Carboxylic acid esters Lactones Oxacyclic compounds Organic metal halides Monocarboxylic acids and derivatives Hydrocarbon derivatives Organic sodium salts Organic zwitterions Organic oxides Organoiodides Organochlorides |
| Molecular Framework | Aromatic heteropolycyclic compounds |
| Substituents | Xanthene - Diaryl ether - Isobenzofuranone - Benzofuranone - Phthalide - Isocoumaran - Isobenzofuran - Phenoxide - Aryl chloride - Aryl halide - Aryl iodide - Benzenoid - Vinylogous halide - Carboxylic acid ester - Lactone - Organic metal halide - Carboxylic acid derivative - Oxacycle - Organic alkali metal salt - Ether - Monocarboxylic acid or derivatives - Organic oxygen compound - Organic sodium salt - Hydrocarbon derivative - Organic oxide - Organohalogen compound - Organochloride - Organoiodide - Organooxygen compound - Organic salt - Organic zwitterion - Aromatic heteropolycyclic compound |
| Descrizione | 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 | Data | Oggetto |
|---|---|---|---|
| Certificate of Analysis | Sep 04, 2026 | R104991 | |
| Certificate of Analysis | Sep 04, 2026 | R104991 | |
| Certificate of Analysis | Aug 02, 2025 | R104991 | |
| Certificate of Analysis | Aug 02, 2025 | R104991 | |
| Certificate of Analysis | Aug 02, 2025 | R104991 | |
| Certificate of Analysis | May 06, 2025 | R104991 | |
| Certificate of Analysis | May 06, 2025 | R104991 | |
| Certificate of Analysis | May 06, 2025 | R104991 | |
| Certificate of Analysis | Oct 28, 2022 | R104991 | |
| Certificate of Analysis | Oct 28, 2022 | R104991 | |
| Certificate of Analysis | Oct 28, 2022 | R104991 | |
| Certificate of Analysis | Oct 28, 2022 | R104991 | |
| Certificate of Analysis | Oct 28, 2022 | R104991 |
| Sensibilità | Light sensitive. |
|---|---|
| Punto di fusione (°C) | >300℃ |
| Peso molecolare | 1017.600 g/mol |
| XLogP3 | |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 5 |
| Rotatable Bond Count | 0 |
| Exact Mass | 1017.46 Da |
| Monoisotopic Mass | 1015.46 Da |
| Topological Polar Surface Area | 81.700 Ų |
| Heavy Atom Count | 35 |
| Formal Charge | 0 |
| Complexity | 780.000 |
| 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 |
Our grade selection guide covers purity, stabilizer status, and application suitability for all variants in our catalog.
View Biological Stain grade guide →