Phloxine B - high-purity, ≥97% , CAS No.18472-87-2

CAS: 18472-87-2 Cat. No.: P102690 Molecular Weight: 829.63 Beilstein Registry Number: 3887100 EC Number: 242-355-6 PubChem CID: 6433718
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GRADE & PURITY High-purity ? High-purity grade with substantially reduced impurity levels. Use when trace contaminants would interfere with your measurement or process. ≥97%
Synonyms
Orient Water Pink 2 | C.I. Acid Red 92 | Eosin Blue | Phloxine P | Cyanosine | Phloxine B, antibacterial fluorescent dye | STK636241 | ABBOTT-705691 FREE BASE | Phloxine B, Dye content >=80 %, certified by the Biological Stain Commission | (1S,2S)-2-(2-{[
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5g
P102690-5g
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$68.90
25g
P102690-25g
1
$259.90
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Why this grade

high-purity, ≥97% High-purity for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Ships Normal Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

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Literature proof

Cited in 14 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Phloxine B is a fluorescein dye which is known to inhibit the enzyme UDP-glucuronosyltransferase (UGT), the main catalyst for the glucuronidation of 7-HC. Additionally, Phloxine B is reported to be a poly(ADP-ribose) glycohydrolase (PARG) inhibitor. As a photoactive dye, Phloxine B is reported to have efficacy against gram-positive organisms. Phloxine B has also been utilized in a study investigating the visible light-induced photodegradation kinetics when coated onto silica TLC plates and in solution. The rapid photodegradation of Phloxine B via visible light exposure was noted and the phototoxicity of the remaining residues were also reported to be decreased.
A fluorescein photoactive dye

Specifications

Synonyms
Orient Water Pink 2 | C.I. Acid Red 92 | Eosin Blue | Phloxine P | Cyanosine | Phloxine B, antibacterial fluorescent dye | STK636241 | ABBOTT-705691 FREE BASE | Phloxine B, Dye content >=80 %, certified by the Biological Stain Commission | (1S, 2S)-2-(2-{[
Specifications & Purity
high-purity, ≥97%
Biochemical and Physiological Mechanisms
Phloxine B has been demonstrated as an alternative to Gram staining. It was found to inhibit the growth of methicillin-resistant Staphylococcus aureus. Phloxine B stimulated and inhibited the channel activity of wild-type cystic fibrosis transmembrane con
Shipped In
Normal
Grade
High-purity
Purity
≥97%
Names and Identifiers
Pubchem Sid504764153
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504764153
Canonical SmilesC1=C2C(=C(C(=C1Br)[O-])Br)OC3=C(C(=C(C=C3C24C5=C(C(=C(C(=C5Cl)Cl)Cl)Cl)C(=O)O4)Br)[O-])Br.[Na+].[Na+]
IUPAC Namedisodium;2',4',5',7'-tetrabromo-4,5,6,7-tetrachloro-3-oxospiro[2-benzofuran-1,9'-xanthene]-3',6'-diolate
InChIKeyOOYIOIOOWUGAHD-UHFFFAOYSA-L
INCHI1S/C20H4Br4Cl4O5.2Na/c21-5-1-3-17(9(23)15(5)29)32-18-4(2-6(22)16(30)10(18)24)20(3)8-7(19(31)33-20)11(25)13(27)14(28)12(8)26;;/h1-2,29-30H;;/q;2*+1/p-2
Isomeric SMILES C1=C2C(=C(C(=C1Br)[O-])Br)OC3=C(C(=C(C=C3C24C5=C(C(=C(C(=C5Cl)Cl)Cl)Cl)C(=O)O4)Br)[O-])Br.[Na+].[Na+]
WGK Germany 2
RTECS LM5900000
PubChem CID 6433718
Molecular Weight 829.63
Beilstein 3887100
Reaxy-Rn 6364882

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

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✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

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📊 Datasheet

Quick-reference summary of product specifications and applications.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

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Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganoheterocyclic compounds
ClassBenzopyrans
Subclass1-benzopyrans
Intermediate Tree Nodes Dibenzopyrans
Direct ParentXanthenes
Alternative Parents Diarylethers  Phthalides  Benzofuranones  Isobenzofurans  Phenoxides  Aryl bromides  Aryl chlorides  Vinylogous halides  Carboxylic acid esters  Lactones  Oxacyclic compounds  Organic metal halides  Hydrocarbon derivatives  Organic oxides  Organic sodium salts  Organic zwitterions  Organobromides  Organochlorides  
Molecular FrameworkAromatic heteropolycyclic compounds
Substituents Xanthene - Diaryl ether - Benzofuranone - Phthalide - Isobenzofuranone - Isobenzofuran - Isocoumaran - Phenoxide - Aryl chloride - Aryl halide - Benzenoid - Aryl bromide - Vinylogous halide - Carboxylic acid ester - Lactone - Oxacycle - Organic alkali metal salt - Carboxylic acid derivative - Organic metal halide - Ether - Organic oxide - Organohalogen compound - Organobromide - Organochloride - Organic oxygen compound - Organooxygen compound - Organic zwitterion - Organic salt - Organic sodium salt - Hydrocarbon derivative - Aromatic heteropolycyclic compound
DescriptionThis 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
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

11 results found

Lot NumberCertificate TypeDateItem
L2404095Certificate of AnalysisDec 11, 2024 P102690
L2320086Certificate of AnalysisDec 25, 2023 P102690
A2405370Certificate of AnalysisJul 03, 2023 P102690
C2427042Certificate of AnalysisJul 03, 2023 P102690
F2326193Certificate of AnalysisJul 03, 2023 P102690
F2326210Certificate of AnalysisJul 03, 2023 P102690
B2301228Certificate of AnalysisSep 14, 2022 P102690
B2303119Certificate of AnalysisSep 14, 2022 P102690
B2303534Certificate of AnalysisSep 14, 2022 P102690
B2303541Certificate of AnalysisSep 14, 2022 P102690
D2307371Certificate of AnalysisSep 14, 2022 P102690

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Chemical and Physical Properties
SolubilitySoluble in water (1 mg/ml) (clear red solution).,
Molecular Weight829.600 g/mol
XLogP3
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count5
Rotatable Bond Count0
Exact Mass829.511 Da
Monoisotopic Mass823.519 Da
Topological Polar Surface Area81.700 Ų
Heavy Atom Count35
Formal Charge0
Complexity780.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count3
Citations of This Product
References
1. Hong Yi, Zhou Zhou, Yu Lingzi, Jiang Keyang, Xia Jiamiao, Mi Yuling, Zhang Caiqiao, Li Jian.  (2021)  Lactobacillus salivarius and Lactobacillus agilis feeding regulates intestinal stem cells activity by modulating crypt niche in hens.  APPLIED MICROBIOLOGY AND BIOTECHNOLOGY,  105  (23): (8823-8835).  [PMID:34708278] [10.1007/s00253-021-11606-2]
2. Huang Yejing, Han Xiufen, Yu Xiao, Wang Shumei, Zhai Haiyun.  (2021)  Capillary Electrophoresis-Indirect Laser-Induced Fluorescence Detection of Neomycin in Fish.  CHROMATOGRAPHIA,  84  (9): (861-868).  [PMID:] [10.1007/s10337-021-04075-2]
3. Lingzi Yu, Xiaochen Xie, Keyang Jiang, Yi Hong, Zhou Zhou, Yuling Mi, Caiqiao Zhang, Jian Li.  (2020)  Paneth cells mediated the response of intestinal stem cells at the early stage of intestinal inflammation in the chicken.  POULTRY SCIENCE,      [PMID:33518114] [10.1016/j.psj.2020.11.055]
4. Yuxin Huang, Yanan Tian, Jie Shu, Fu Wang, Xunbin Wei.  (2020)  Oxygen self-enriched single-component “black carbon nitride” for near-infrared phototheranostics.  Nanoscale,  12  (42): (21812-21820).  [PMID:33103711] [10.1039/D0NR05871H]
5. Hai XU, Pan ZHANG, Shao-Yan ZHOU, Qiong JIA.  (2020)  Fullerene Functionalized Magnetic Molecularly Imprinted Polymer: Synthesis, Characterization and Application for Efficient Adsorption of Methylene Blue.  CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,      [PMID:] [10.1016/S1872-2040(20)60045-7]
6. Yihua Yin, Mengdan Yang, Jing Xi, Weiquan Cai, Ying Yi, Guanghua He, Yue Dai, Ting Zhou, Mengqing Jiang.  (2020)  A sodium alginate-based nano-pesticide delivery system for enhanced in vitro photostability and insecticidal efficacy of phloxine B.  CARBOHYDRATE POLYMERS,      [PMID:32829805] [10.1016/j.carbpol.2020.116677]
7. Xiaoda Wang, Xin Xu, Qinglian Wang, Zhixian Huang, Jianyang He, Ting Qiu.  (2020)  Fatty Acid Methyl Ester Synthesis through Transesterification of Palm Oil with Methanol in Microchannels: Flow Pattern and Reaction Kinetics.  ENERGY & FUELS,      [PMID:] [10.1021/acs.energyfuels.9b03365]
8. Ruimin Li, Yuting Zhang, Jing Tan, Jiaxun Wan, Jia Guo, Changchun Wang.  (2016)  Dual-Mode Encoded Magnetic Composite Microsphere Based on Fluorescence Reporters and Raman Probes as Covert Tag for Anticounterfeiting Applications.  ACS Applied Materials & Interfaces,      [PMID:27010437] [10.1021/acsami.6b02359]
9. Jinjie Wang, Qian Lai, Hongyang Pan, Daming Sun, Chunfeng Yu, Wei Zhang, Jian Chen, Liqin Ma, Ling Li, Ren Zhou.  (2014)  Evaluation of specific marker CK13 and CK10/13 combined with APM staining for the diagnosis of amniotic fluid embolism and aspiration.  FORENSIC SCIENCE INTERNATIONAL,      [PMID:24705378] [10.1016/j.forsciint.2014.02.032]
10. Sheng Li, Wentong Fan, Qiulin Chen, Xinfeng Zhang.  (2024)  Facile Light-Driven Synthesis of Highly Luminous Sulfur Quantum Dots for Fluorescence Sensing and Cell Imaging.  ACS Applied Materials & Interfaces,      [PMID:39074383] [10.1021/acsami.4c05739]
11. Yue Wang, Ridan Song, Haiqi Huang, Zhenping Bao, Yuxia Gao, Yanling Wu, Songhao Zhang, Rui Liu, Chenhui Zhang, Fengpei Du.  (2024)  Mechanism Study on the Alcoholysis and Polymerization Degree of Poly(vinyl alcohol) to Regulate Droplet Impact Behavior on Hydrophobic Surfaces.  ACS Sustainable Chemistry & Engineering,      [PMID:] [10.1021/acssuschemeng.3c07635]
12. Haoye Tian, Chennan He, Haiping Zhang, Xia Dong, Jinxin He, Jinfang Zhang, Qiangqiang Zhao.  (2025)  Construction of dye-supported fret nanofiber catalysts for photocatalytic Cross-Dehydrogenative coupling reactions.  Molecular Catalysis,      [PMID:] [10.1016/j.mcat.2025.115200]
13. Guohui Liang, Bohai Li, Lifen Liu.  (2025)  Co-doped black carbon nitride (BCN)@TiO₂ heterojunction: A bifunctional material for simultaneous solar evaporation and photothermal catalytic wastewater purification.  DESALINATION,      [PMID:] [10.1016/j.desal.2025.119685]
14. Meng Yao Wu, Yu Qing Tian, Jiao Yang Lu, Tian Tian Fu, Hou Cheng Liang, Wei Tao Huang.  (2025)  Synthesis of Sustainable Chromium-Based Nanoparticles With Fluorescence Tunable Ability for Biosensing of Tumor-Derived Exosomes and Molecular Information Protection.  SusMat,      [PMID:] [10.1002/sus2.70053]
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