≥95% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Argon charged,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 1 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Fluorescin is a fluorescent probe in biology used to detect protein location and activation, identify protein complex formation and conformational changes and monitor biological processes in vitro or in vivo.
A fluorescent probe
| Pubchem Sid | 488184103 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/488184103 |
| Canonical Smiles | C1=CC=C(C(=C1)C2C3=C(C=C(C=C3)O)OC4=C2C=CC(=C4)O)C(=O)O |
| IUPAC Name | 2-(3,6-dihydroxy-9H-xanthen-9-yl)benzoic acid |
| InChIKey | MURGITYSBWUQTI-UHFFFAOYSA-N |
| INCHI | 1S/C20H14O5/c21-11-5-7-15-17(9-11)25-18-10-12(22)6-8-16(18)19(15)13-3-1-2-4-14(13)20(23)24/h1-10,19,21-22H,(H,23,24) |
| Isomeric SMILES | C1=CC=C(C(=C1)C2C3=C(C=C(C=C3)O)OC4=C2C=CC(=C4)O)C(=O)O |
| Molecular Weight | 334.32 |
| Beilstein | 19(3/4)2904 |
| Reaxy-Rn | 316067 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=316067&ln= |
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 Benzoic acids Benzoyl derivatives 1-hydroxy-2-unsubstituted benzenoids Oxacyclic compounds Monocarboxylic acids and derivatives Carboxylic acids Organic oxides Hydrocarbon derivatives |
| Molecular Framework | Aromatic heteropolycyclic compounds |
| Substituents | Xanthene - Diaryl ether - Benzoic acid or derivatives - Benzoic acid - Benzoyl - 1-hydroxy-2-unsubstituted benzenoid - Monocyclic benzene moiety - Benzenoid - Oxacycle - Carboxylic acid derivative - Carboxylic acid - Ether - Monocarboxylic acid or derivatives - Organic oxygen compound - Organic oxide - Organooxygen compound - Hydrocarbon derivative - 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 | xanthenes |
Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Date | Item |
|---|---|---|---|
 D2415388 | Certificate of Analysis | Jan 21, 2026 | F131512 |
| C2328439 | Certificate of Analysis | Jan 15, 2025 | F131512 |
| C2328485 | Certificate of Analysis | Jan 15, 2025 | F131512 |
| C2328500 | Certificate of Analysis | Jan 15, 2025 | F131512 |
| C2328521 | Certificate of Analysis | Jan 15, 2025 | F131512 |
| C2328522 | Certificate of Analysis | Jan 15, 2025 | F131512 |
| C2307168 | Certificate of Analysis | Dec 05, 2024 | F131512 |
| L2516645 | Certificate of Analysis | Jul 01, 2024 | F131512 |
| J2129803 | Certificate of Analysis | Aug 02, 2023 | F131512 |
| C2328728 | Certificate of Analysis | Mar 07, 2023 | F131512 |
| L2018048 | Certificate of Analysis | Oct 17, 2022 | F131512 |
| I2209067 | Certificate of Analysis | Sep 29, 2021 | F131512 |
| Sensitivity | Air sensitive |
|---|---|
| Melt Point(°C) | 127 °C |
| Molecular Weight | 334.300 g/mol |
| XLogP3 | 3.700 |
| Hydrogen Bond Donor Count | 3 |
| Hydrogen Bond Acceptor Count | 5 |
| Rotatable Bond Count | 2 |
| Exact Mass | 334.084 Da |
| Monoisotopic Mass | 334.084 Da |
| Topological Polar Surface Area | 87.000 Ų |
| Heavy Atom Count | 25 |
| Formal Charge | 0 |
| Complexity | 468.000 |
| 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 |
| 1. Zixiang Qu, Lizhen Wang, Shimin Fang, Dawei Qin, Jianhua Zhou, Geng Yang, Hongdong Duan. (2019) Fluorescein-immobilized optical hydrogels: Synthesis and its application for detection of Hg2+. MICROCHEMICAL JOURNAL, [PMID:] [10.1016/j.microc.2019.104198] |
