Eosin Y - 95% , CAS No.15086-94-9

CAS: 15086-94-9 Cat. No.: E110818 Formula: C20H8Br4O5 Molecular Weight: 647.89 EC Number: 239-138-3
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Synonyms
AMI-5 | Acid eosin | AKOS024374936 | EOSIN Y FREE ACID [MI] | Japan Red No. 223 | SCHEMBL113395 | Solvent Red 43 | 2',4',5',7'-tetrabromo-3',6'-dihydroxy-3H-spiro[2-benzofuran-1,9'-xanthen]-3-one | Eosin acid | BDBM50376168 | Bromofluoresceic acid (Salt/M
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Size
Germany (EU)
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Price
Qty
5g
E110818-5g
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4 In stock
€45.90
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Why this grade

95% 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 99 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Eosin Y is a brominated fluoroscein dye derivative used as an acidic red stain for cell cytoplasm.
A brominated fluoroscein dye derivative

Specifications

Synonyms
AMI-5 | Acid eosin | AKOS024374936 | EOSIN Y FREE ACID [MI] | Japan Red No. 223 | SCHEMBL113395 | Solvent Red 43 | 2',4',5',7'-tetrabromo-3',6'-dihydroxy-3H-spiro[2-benzofuran-1,9'-xanthen]-3-one | Eosin acid | BDBM50376168 | Bromofluoresceic acid (Salt/M
Specifications & Purity
95%
Biochemical and Physiological Mechanisms
Eosin Y is an xanthan dye used to connect tissues and cytoplasm for differential staining. In histopathology, it is used after hematoxylin and before methyl blue for re staining. It can also be used as a background stain to provide contrast for the nucleu
Shipped In
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Names and Identifiers
Canonical Smiles
C1=CC=C2C(=C1)C(=O)OC23C4=CC(=C(C(=C4OC5=C(C(=C(C=C35)Br)O)Br)Br)O)Br
IUPAC Name
2',4',5',7'-tetrabromo-3',6'-dihydroxyspiro[2-benzofuran-3,9'-xanthene]-1-one
InChIKey
DBZJJPROPLPMSN-UHFFFAOYSA-N
INCHI
1S/C20H8Br4O5/c21-11-5-9-17(13(23)15(11)25)28-18-10(6-12(22)16(26)14(18)24)20(9)8-4-2-1-3-7(8)19(27)29-20/h1-6,25-26H
Isomeric SMILES
C1=CC=C2C(=C1)C(=O)OC23C4=CC(=C(C(=C4OC5=C(C(=C(C=C35)Br)O)Br)Br)O)Br
WGK Germany
3
RTECS
LM5800000
Alternate CAS
17372-87-1
Molecular Weight
647.89
Reaxy-Rn
63410
Reaxys-RN_link_address
https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=63410&ln=

Documentation

📋 Safety Data Sheet (SDS)

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

<<<<<<< HEAD Download SDS → ======= Download SDS → >>>>>>> release248-p3

✅ 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  O-bromophenols  Aryl bromides  Lactones  Carboxylic acid esters  Oxacyclic compounds  Monocarboxylic acids and derivatives  Organobromides  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteropolycyclic compounds
Substituents Xanthene - Diaryl ether - Isobenzofuranone - Benzofuranone - Phthalide - Isocoumaran - Isobenzofuran - 2-bromophenol - Benzenoid - Aryl bromide - Aryl halide - Carboxylic acid ester - Lactone - Oxacycle - Carboxylic acid derivative - Ether - Monocarboxylic acid or derivatives - Organic oxygen compound - Organohalogen compound - Organobromide - Organooxygen compound - Hydrocarbon derivative - Organic oxide - 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 organobromine compound
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
PRMT1 Tchem Protein arginine N-methyltransferase 1 (1 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
U-937 (7138 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
SIRT2 Tchem NAD-dependent deacetylase sirtuin 2 (3979 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
SIRT1 Tchem NAD-dependent deacetylase sirtuin 1 (3505 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
SETD7 Tchem Histone-lysine N-methyltransferase SETD7 (390 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
PRMT1 Tchem Protein-arginine N-methyltransferase 1 (867 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
UGT1A1 Tchem UDP-glucuronosyltransferase 1-1 (448 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Associated Targets(non-human)
Carm1 Histone-arginine methyltransferase CARM1 (53 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
rep Replicase polyprotein 1ab (378 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
rmtA RmtA (95 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mechanisms of Action
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.

4 results found

Lot NumberCertificate TypeDateItem
A2306370A2306370Certificate of AnalysisSep 22, 2026 E110818
A2306390A2306390Certificate of AnalysisDec 01, 2022 E110818
K2217755K2217755Certificate of AnalysisOct 13, 2022 E110818
G2211045G2211045Certificate of AnalysisJul 13, 2022 E110818
Chemical and Physical Properties
SolubilitySoluble in ethanol (10 mg/mL), spirit, and Ethylene Glycol Monomethyl Ether (Methyl-cellosolve; EGME) (40 mg/mL). Insoluble in water.
SensitivityMoisture sensitive.
Melt Point(°C)295 °C
Molecular Weight647.900 g/mol
XLogP36.200
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count5
Rotatable Bond Count0
Exact Mass647.706 Da
Monoisotopic Mass643.711 Da
Topological Polar Surface Area76.000 Ų
Heavy Atom Count29
Formal Charge0
Complexity645.000
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 Count1
Documents & Articles
Citations of This Product
Solution Calculators
Reviews

Customer Reviews

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