Basic blue 3 , CAS No.33203-82-6

CAS: 33203-82-6 Cat. No.: B358273 Molecular Weight: 359.9 EC Number: 251-403-5
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Synonyms
BASICBLUE3 | LOWACRYL BLUE 3 | Q27279744 | Ethanaminium, N-(7-(diethylamino)-3H-phenoxazin-3-ylidene)-N-ethyl-, chloride | H82L80329Y | BASIC BLUE 3 [INCI] | EINECS 251-403-5 | Basic Blue 3, Dye content 25 % | Phenoxazin-5-ium,7-bis(diethylamino)-, chlori
Storage
Room temperature
Shipped In
Normal
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Size
Status
Price
Qty
100g
B358273-100g
5

$197.90

$244.90
Save $47.00 (19.19%)
500g
B358273-500g
3

$602.90

$733.90
Save $131.00 (17.85%)
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Why this grade

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 3 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Basic blue 3 has an absorbance λ max of 654 nm.Activated carbon prepared from rubber seed coat can remove alkaline blue 3 (BB3) from aqueous solution. Basic Blue 3 (C.I.51104) is a cationic dye. It usually carries a positive charge in aqueous solutions.


Application

Basic Blue 3 has a bright blue color and can therefore be used as a colorant for dyeing acrylic fabrics


Specifications

Synonyms
BASICBLUE3 | LOWACRYL BLUE 3 | Q27279744 | Ethanaminium, N-(7-(diethylamino)-3H-phenoxazin-3-ylidene)-N-ethyl-, chloride | H82L80329Y | BASIC BLUE 3 [INCI] | EINECS 251-403-5 | Basic Blue 3, Dye content 25 % | Phenoxazin-5-ium, 7-bis(diethylamino)-, chlori
Storage
Room temperature
Shipped In
Normal
Names and Identifiers
Pubchem Sid488187573
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488187573
Canonical SmilesCCN(CC)C1=CC2=C(C=C1)N=C3C=CC(=[N+](CC)CC)C=C3O2.[Cl-]
IUPAC Name[7-(diethylamino)phenoxazin-3-ylidene]-diethylazanium;chloride
InChIKeyIURGIPVDZKDLIX-UHFFFAOYSA-M
INCHI1S/C20H26N3O.ClH/c1-5-22(6-2)15-9-11-17-19(13-15)24-20-14-16(23(7-3)8-4)10-12-18(20)21-17;/h9-14H,5-8H2,1-4H3;1H/q+1;/p-1
Isomeric SMILES CCN(CC)C1=CC2=C(C=C1)N=C3C=CC(=[N+](CC)CC)C=C3O2.[Cl-]
WGK Germany 3
Molecular Weight 359.9
Reaxy-Rn 3923954
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=3923954&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
SuperclassOrganoheterocyclic compounds
ClassBenzoxazines
SubclassPhenoxazines
Intermediate Tree Nodes Not available
Direct ParentPhenoxazines
Alternative Parents Dialkylarylamines  Benzenoids  Secondary ketimines  Heteroaromatic compounds  Oxacyclic compounds  Azacyclic compounds  Organopnictogen compounds  Organooxygen compounds  Organic chloride salts  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteropolycyclic compounds
Substituents Phenoxazine - Tertiary aliphatic/aromatic amine - Dialkylarylamine - Benzenoid - Secondary ketimine - Heteroaromatic compound - Tertiary amine - Oxacycle - Azacycle - Organic salt - Amine - Hydrocarbon derivative - Organopnictogen compound - Organic oxygen compound - Organic nitrogen compound - Organooxygen compound - Organonitrogen compound - Organic chloride salt - Aromatic heteropolycyclic compound
DescriptionThis compound belongs to the class of organic compounds known as phenoxazines. These are polycyclic aromatic compounds containing a phenoxazine moiety, which is a linear tricyclic system that consists of a two benzene rings joined by a 1,4-oxazine ring.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Associated Targets(non-human)
Plasmodium falciparum (966862 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Leishmania donovani (89745 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Trypanosoma cruzi (99888 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Plasmodium berghei (192651 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mus musculus (284745 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Rattus norvegicus (775804 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Trypanosoma brucei rhodesiense (7991 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.

5 results found

Lot NumberCertificate TypeDateItem
G23111089Certificate of AnalysisApr 07, 2026 B358273
G23111097Certificate of AnalysisApr 07, 2026 B358273
G2311830Certificate of AnalysisApr 07, 2026 B358273
G2311833Certificate of AnalysisApr 07, 2026 B358273
G2311839Certificate of AnalysisApr 07, 2026 B358273
Chemical and Physical Properties
SolubilitySoluble in water (partly), ethanol, and EGME.
Melt Point(°C)205° C (lit.)(dec.)
Molecular Weight359.900 g/mol
XLogP3
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count4
Rotatable Bond Count5
Exact Mass359.176 Da
Monoisotopic Mass359.176 Da
Topological Polar Surface Area27.800 Ų
Heavy Atom Count25
Formal Charge0
Complexity533.000
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 Count2
Citations of This Product
References
1. Aodi Zhang, Yusai Zhou, Feng Xue, Xudong Peng, Hongyu Chen, Hong Wang.  (2022)  Exploring the generality of ligands for Silica-Encapsulated nanoclusters as SERS labels.  JOURNAL OF COLLOID AND INTERFACE SCIENCE,      [PMID:36577354] [10.1016/j.jcis.2022.12.099]
2. Ao Wang, Guowei Liu, Yiqiao Zhao, Xiaoxue Tan, A.V. Rogachev, Qianqian Ding, Xiaohong Jiang.  (2025)  Highly sensitive SERS platform with analyte enrichment for multiplex organic pollutants detection in river water.  APPLIED SURFACE SCIENCE,      [PMID:] [10.1016/j.apsusc.2025.163016]
3. Qianqian Ding, Jisong Qian, Shijie Mei, Zebin Zhu, Wenge Yang, Kexin Huang, Yanqiang Cao, Liyong Jiang.  (2025)  Gap-enhanced V-shaped SERS substrate for multiplex trace dye pollutants detection in river water.  APPLIED SURFACE SCIENCE,      [PMID:] [10.1016/j.apsusc.2025.163542]
Solution Calculators
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