Rose bengal - ≥90% , CAS No.632-69-9

CAS: 632-69-9 Cat. No.: R104992 Summenformel: C20H2Cl4I4Na2O5 Molekulargewicht: 1017.64 Beilstein Registry Number: 3645857 EG-Nummer: 211-183-3 PubChem CID: 69438
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GRADE & PURITY ≥90%
Synonyms
FT-0621857 | 2,4,5,7-Tetraido(m,p,o',m')tetrachlorofluorescein, disodium salt | Acid Red 94 disodium salt | MFCD00151169 | Rose bengale (131 I) sodique [INN-French] | F20361 | R105 sodium | disodium;4,5,6,7-tetrachloro-2',4',5',7'-tetraiodo-3-oxospiro[2-b
Storage
Protected from light,Room temperature,Desiccated
Shipped In
Normal
★
Size
Deutschland (EU)
USA*
Price
Qty
5g
R104992-5g
—
3 Auf Lager

36,36€

42,43€
Speichern 6,07 € (14.31%)
25g
R104992-25g
—
2 Auf Lager

91,89€

134,41€
Speichern 42,52 € (31.63%)
Enter a quantity for the sizes you want to add.
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Why this grade

≥90% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Protected from light,Room temperature,Desiccated 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 187 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Übersicht

Product Description:
Rose Bengal is a stain used in the eye drops to identify the eye damage. It finds application in the preparation of foraminifera for microscopic analysis, photosensitizing reactions and as a dye. In synthetic chemistry, it is utilized to convert triplet oxygen to singlet oxygen, which is used in [2+2] cycloadditions with alkenes. Its derivatives have important medical functions and used for the treatment of cancer. It acts as an alternative to phloxine B in Kreyberg's stain for keratin and mucus. As a fluorescent probe, it is used for the determination of NAD binding sites of alcohol dehydrogenase. Product Application:
Rose Bengal is a red or rose color dye and is anionic in nature. It is a 4,5,6,7-tetrachloro 2′,4′,5′,7′-tetraiodo derivative of fluorescein. It is widely used to detect damage to the ocular surface epithelium in ocular surface diseases such as dry eye and herpetic keratitis. Rose Bengal has mild antiviral potency.Rose Bengal is used to stain dead and degenerating cells and mucus.

Specifications

Synonyme
FT-0621857 | 2,4,5,7-Tetraido(m,p,o',m')tetrachlorofluorescein, disodium salt | Acid Red 94 disodium salt | MFCD00151169 | Rose bengale (131 I) sodique [INN-French] | F20361 | R105 sodium | disodium;4,5,6,7-tetrachloro-2',4',5',7'-tetraiodo-3-oxospiro[2-b
Spezifikationen & Reinheit
≥90%
Biochemische und physiologische Mechanismen
Potent glutamate uptake inhibitor (K i = 19 nM, glutamate uptake into isolated synaptic vesicles). Photosensitizing dye. Fluorescein derivative. Cell-permeable. Induces photothrombotic stroke in vivo.
Storage
Protected from light,Room temperature,Desiccated
Verschickt in
Normal
Hinweis
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour. Need more advice on solubility, usage and handling? Please visit our frequently asked questions (FAQ) page for more details.
Reinheit
≥90%
Namen und Kennungen
Pubchem Sid
Pubchem Sid Url
https://pubchem.ncbi.nlm.nih.gov/substance/508813231
Kanonisches Lächeln
C1=C2C(=C(C(=C1I)[O-])I)OC3=C(C(=C(C=C3C24C5=C(C(=C(C(=C5Cl)Cl)Cl)Cl)C(=O)O4)I)[O-])I.[Na+].[Na+]
IUPAC Name
disodium;4,5,6,7-tetrachloro-2',4',5',7'-tetraiodo-3-oxospiro[2-benzofuran-1,9'-xanthene]-3',6'-diolate
InChIKey
KCQREHTWEUECQT-UHFFFAOYSA-L
INCHI
1S/C20H4Cl4I4O5.2Na/c21-9-7-8(10(22)12(24)11(9)23)20(33-19(7)31)3-1-5(25)15(29)13(27)17(3)32-18-4(20)2-6(26)16(30)14(18)28;;/h1-2,29-30H;;/q;2*+1/p-2
Isomere SMILES
C1=C2C(=C(C(=C1I)[O-])I)OC3=C(C(=C(C=C3C24C5=C(C(=C(C(=C5Cl)Cl)Cl)Cl)C(=O)O4)I)[O-])I.[Na+].[Na+]
WGK Deutschland
3
RTECS
LM5920000
PubChem CID
69438
Molekulargewicht
1017.64
Beilstein
3645857

Documentation

📋 Safety Data Sheet (SDS)

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

Download SDS →

✅ Certificate of Analysis (COA)

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

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganoheterocyclic compounds
KlasseBenzopyrans
Subclass1-benzopyrans
Intermediate Tree Nodes Dibenzopyrans
Direct ParentXanthenes
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 FrameworkAromatic 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
BeschreibungThis 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-Struktur
Interaktives chemisches Strukturmodell





Zertifikate (CoA, COO, BSE/TSE und Analyse-Diagramm)
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.

12 results found

Lot NumberCertificate TypeDatumArtikel
L2227072Certificate of AnalysisSep 22, 2026 R104992
L2227112Certificate of AnalysisSep 22, 2026 R104992
D2615507Certificate of AnalysisApr 17, 2026 R104992
G2524479Certificate of AnalysisAug 02, 2025 R104992
G2524480Certificate of AnalysisAug 02, 2025 R104992
K2428656Certificate of AnalysisDec 03, 2024 R104992
K2428657Certificate of AnalysisDec 03, 2024 R104992
K2321424Certificate of AnalysisNov 23, 2023 R104992
C23161485Certificate of AnalysisMar 23, 2023 R104992
C2317068Certificate of AnalysisMar 23, 2023 R104992
L2227082Certificate of AnalysisDec 29, 2022 R104992
L2227096Certificate of AnalysisDec 29, 2022 R104992
Chemische und physikalische Eigenschaften
EmpfindlichkeitLight sensitive.
Schmelzpunkt (°C)>300℃
Molekulargewicht1017.600 g/mol
XLogP3
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count5
Rotatable Bond Count0
Exact Mass1017.46 Da
Monoisotopic Mass1015.46 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
FAQs und Artikel
Citations of This Product
Lösungsrechner
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