Chlorantine Fast Red 5B - Dye content 50% , CAS No.2610-11-9

CAS: 2610-11-9 Cat. No.: C303261 Molecular Weight: 675.6 EC Number: 220-028-9
AVAILABLE TO ORDER
GRADE & PURITY Dye content 50%
Synonyms
Bordeaux EMBL | Diaphtamine Light Red 4B | Direct red y81 | Triantine Light Red 4BN | Durazol Red 2BP | CHLORANTINEFASTRED5B | disodium;7-benzamido-4-hydroxy-3-[[4-[(4-sulfonatophenyl)diazenyl]phenyl]diazenyl]naphthalene-2-sulfonate | NSC-326198 | Diazo L
Storage
Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
5g
C303261-5g
3
$20.90
25g
C303261-25g
3
$48.90
100g
C303261-100g
5
$130.90
500g
C303261-500g
2
$569.90
Enter a quantity for the sizes you want to add.
🧪

Why this grade

Dye content 50% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature Ships Normal Check lot-specific COA for exact specifications.

📋

Quality documents

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

📚

Literature proof

Cited in 2 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
Bordeaux EMBL | Diaphtamine Light Red 4B | Direct red y81 | Triantine Light Red 4BN | Durazol Red 2BP | CHLORANTINEFASTRED5B | disodium;7-benzamido-4-hydroxy-3-[[4-[(4-sulfonatophenyl)diazenyl]phenyl]diazenyl]naphthalene-2-sulfonate | NSC-326198 | Diazo L
Specifications & Purity
Dye content 50%
Biochemical and Physiological Mechanisms
Bacterial microbiota NBNJ6 can decolorize Direct Red 81 (DR81)
Storage
Room temperature
Shipped In
Normal
Names and Identifiers
Pubchem Sid488182393
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488182393
Canonical SmilesC1=CC=C(C=C1)C(=O)NC2=CC3=CC(=C(C(=C3C=C2)O)N=NC4=CC=C(C=C4)N=NC5=CC=C(C=C5)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+]
IUPAC Namedisodium;7-benzamido-4-hydroxy-3-[[4-[(4-sulfonatophenyl)diazenyl]phenyl]diazenyl]naphthalene-2-sulfonate
InChIKeyUFUQRRYHIHJMPB-UHFFFAOYSA-L
INCHI1S/C29H21N5O8S2.2Na/c35-28-25-15-12-23(30-29(36)18-4-2-1-3-5-18)16-19(25)17-26(44(40,41)42)27(28)34-33-21-8-6-20(7-9-21)31-32-22-10-13-24(14-11-22)43(37,38)39;;/h1-17,35H,(H,30,36)(H,37,38,39)(H,40,41,42);;/q;2*+1/p-2
Isomeric SMILES C1=CC=C(C=C1)C(=O)NC2=CC3=CC(=C(C(=C3C=C2)O)N=NC4=CC=C(C=C4)N=NC5=CC=C(C=C5)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+]
Molecular Weight 675.6
Reaxy-Rn 3894142
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=3894142&ln=

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
SuperclassBenzenoids
ClassNaphthalenes
SubclassNaphthalene sulfonic acids and derivatives
Intermediate Tree Nodes Naphthalene sulfonates
Direct Parent2-naphthalene sulfonates
Alternative Parents 2-naphthalene sulfonic acids and derivatives  Azobenzenes  Benzenesulfonic acids and derivatives  1-sulfo,2-unsubstituted aromatic compounds  Benzamides  Benzenesulfonyl compounds  Benzoyl derivatives  Phenoxides  Sulfonyls  Organosulfonic acids  Secondary carboxylic acid amides  Azo compounds  Propargyl-type 1,3-dipolar organic compounds  Organic sodium salts  Organooxygen compounds  Organopnictogen compounds  Hydrocarbon derivatives  Organic oxides  
Molecular FrameworkAromatic homopolycyclic compounds
Substituents Azobenzene - 2-naphthalene sulfonic acid or derivatives - 2-naphthalene sulfonate - Benzenesulfonate - Arylsulfonic acid or derivatives - 1-sulfo,2-unsubstituted aromatic compound - Benzamide - Benzoic acid or derivatives - Benzenesulfonyl group - Benzoyl - Phenoxide - Monocyclic benzene moiety - Organic sulfonic acid or derivatives - Sulfonyl - Organosulfonic acid or derivatives - Organosulfonic acid - Secondary carboxylic acid amide - Azo compound - Carboxamide group - Organic alkali metal salt - Carboxylic acid derivative - Organic 1,3-dipolar compound - Propargyl-type 1,3-dipolar organic compound - Organooxygen compound - Organonitrogen compound - Organic nitrogen compound - Organic sodium salt - Hydrocarbon derivative - Organic oxide - Organosulfur compound - Organic salt - Organic oxygen compound - Organopnictogen compound - Aromatic homopolycyclic compound
DescriptionThis compound belongs to the class of organic compounds known as 2-naphthalene sulfonates. These are organic aromatic compounds that contain a naphthalene moiety that carries a sulfonic acid group at the 2-position. Naphthalene is a bicyclic compound that is made up of two fused benzene 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.

9 results found

Lot NumberCertificate TypeDateItem
F2315691Certificate of AnalysisMar 18, 2026 C303261
F2315692Certificate of AnalysisMar 18, 2026 C303261
F2315694Certificate of AnalysisMar 18, 2026 C303261
F2315762Certificate of AnalysisMar 18, 2026 C303261
F2315791Certificate of AnalysisMar 18, 2026 C303261
F2315793Certificate of AnalysisMar 18, 2026 C303261
F2315798Certificate of AnalysisMar 18, 2026 C303261
F2315800Certificate of AnalysisMar 18, 2026 C303261
E2315659Certificate of AnalysisApr 27, 2023 C303261
Chemical and Physical Properties
Melt Point(°C)240 °C
Molecular Weight675.600 g/mol
XLogP3
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count12
Rotatable Bond Count6
Exact Mass675.047 Da
Monoisotopic Mass675.047 Da
Topological Polar Surface Area230.000 Ų
Heavy Atom Count46
Formal Charge0
Complexity1220.000
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. Dong Zou, Shiying Ni, Huandi Yao, Chang Hu, Ze-Xian Nicholas Low, Zhaoxiang Zhong.  (2022)  Co-sintering of ceramic ultrafiltration membrane with gradient pore structures for separation of dye/salt wastewater.  SEPARATION AND PURIFICATION TECHNOLOGY,      [PMID:] [10.1016/j.seppur.2022.122030]
2. Junqi Zha, Wugao Wu, Peng Xie, Honghua Han, Zheng Fang, Yantao Chen, Zhongfan Jia.  (2022)  Polymeric Nanocapsule Enhances the Peroxidase-like Activity of Fe3O4 Nanozyme for Removing Organic Dyes.  Catalysts,  12  (6): (614).  [PMID:] [10.3390/catal12060614]
Solution Calculators
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