Rhodamine B base - Dye content 97 % , CAS No.509-34-2

CAS: 509-34-2 Cat. No.: R334821 Molecular Weight: 442.55 EC Number: 208-096-8 PubChem CID: 62357
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GRADE & PURITY Dye content 97 %
Synonyms
9-(2-CARBOXYPHENYL)-3,6-BIS(DIETHYLAMINO)-9-HYDROXY-9H-XANTHENELACTONE | Q27282328 | Tox21_303794 | 3,6-BIS(DIETHYLAMINO)SPIRO(9H-XANTHENE-9,1'(3'H)-ISOBENZOFURAN)-3'-ONE | NSC43944 | NSC-43944 | W-109545 | 3',6'-bis(Diethylamino)spiro[isobenzofuran-1(3H)
Storage
Room temperature
Shipped In
Normal
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Size
Status
Price
Qty
10g
R334821-10g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$30.90
50g
R334821-50g
3
$107.90
250g
R334821-250g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$423.90
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Why this grade

Dye content 97 % for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature 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 1 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Rhodamine B base is used as a biological staining dye. Rhodamine B base is also used as a laser dye, tunable around 610 nm with the fluorescence yield being temperature dependent.

Specifications

Synonyms
9-(2-CARBOXYPHENYL)-3, 6-BIS(DIETHYLAMINO)-9-HYDROXY-9H-XANTHENELACTONE | Q27282328 | Tox21_303794 | 3, 6-BIS(DIETHYLAMINO)SPIRO(9H-XANTHENE-9, 1'(3'H)-ISOBENZOFURAN)-3'-ONE | NSC43944 | NSC-43944 | W-109545 | 3', 6'-bis(Diethylamino)spiro[isobenzofuran-1(3H)
Specifications & Purity
Dye content 97 %
Biochemical and Physiological Mechanisms
Rhodamine B alkaline has been used as an experimental marker to determine the mating of B. thuringiensis-resistant females with B. thuringiensis-resistant and B. thuringiensis-susceptible males in an alternating order.
Storage
Room temperature
Shipped In
Normal
Names and Identifiers
Pubchem Sid504753835
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504753835
Canonical SmilesCCN(CC)C1=CC2=C(C=C1)C3(C4=C(O2)C=C(C=C4)N(CC)CC)C5=CC=CC=C5C(=O)O3
IUPAC Name3',6'-bis(diethylamino)spiro[2-benzofuran-3,9'-xanthene]-1-one
InChIKeyDZNJMLVCIZGWSC-UHFFFAOYSA-N
INCHI1S/C28H30N2O3/c1-5-29(6-2)19-13-15-23-25(17-19)32-26-18-20(30(7-3)8-4)14-16-24(26)28(23)22-12-10-9-11-21(22)27(31)33-28/h9-18H,5-8H2,1-4H3
Isomeric SMILES CCN(CC)C1=CC2=C(C=C1)C3(C4=C(O2)C=C(C=C4)N(CC)CC)C5=CC=CC=C5C(=O)O3
WGK Germany 3
PubChem CID 62357
Molecular Weight 442.55

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
ClassBenzopyrans
Subclass1-benzopyrans
Intermediate Tree Nodes Dibenzopyrans
Direct ParentXanthenes
Alternative Parents Diarylethers  Phthalides  Benzofuranones  Isobenzofurans  Dialkylarylamines  Benzenoids  Lactones  Carboxylic acid esters  Amino acids and derivatives  Oxacyclic compounds  Monocarboxylic acids and derivatives  Organopnictogen compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteropolycyclic compounds
Substituents Xanthene - Diaryl ether - Benzofuranone - Phthalide - Isobenzofuranone - Isocoumaran - Isobenzofuran - Tertiary aliphatic/aromatic amine - Dialkylarylamine - Benzenoid - Amino acid or derivatives - Carboxylic acid ester - Tertiary amine - Lactone - Oxacycle - Carboxylic acid derivative - Ether - Monocarboxylic acid or derivatives - Amine - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organic nitrogen compound - Organonitrogen compound - Organooxygen compound - Organopnictogen compound - 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.

8 results found

Lot NumberCertificate TypeDateItem
D23261149Certificate of AnalysisJul 11, 2022 R334821
E2622012Certificate of AnalysisJul 11, 2022 R334821
G2510090Certificate of AnalysisJul 11, 2022 R334821
I2205238Certificate of AnalysisJul 11, 2022 R334821
I2205239Certificate of AnalysisJul 11, 2022 R334821
I2205367Certificate of AnalysisJul 11, 2022 R334821
I2205368Certificate of AnalysisJul 11, 2022 R334821
L2326083Certificate of AnalysisJul 11, 2022 R334821
Chemical and Physical Properties
SolubilitySoluble in ethanol (1 mg/ml), methanol, chloroform, and DMF. Insoluble in water.
Refractive Indexn20D1.65 (Predicted)
Boil Point(°C)637.16° C at 760 mmHg (Predicted)
Melt Point(°C)248.14° C (Predicted)
Molecular Weight442.500 g/mol
XLogP35.800
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count5
Rotatable Bond Count6
Exact Mass442.226 Da
Monoisotopic Mass442.226 Da
Topological Polar Surface Area42.000 Ų
Heavy Atom Count33
Formal Charge0
Complexity655.000
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
References
1. Hajra Zafar, Jun Zhang, Faisal Raza, Xiuhua Pan, Zongwei Hu, Hanxiao Feng, Qi Shen.  (2024)  Biomimetic gold nanocages incorporating copper-human serum albumin for tumor immunotherapy via cuproptosis-lactate regulation.  JOURNAL OF CONTROLLED RELEASE,      [PMID:38917953] [10.1016/j.jconrel.2024.06.059]
Solution Calculators
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