Aniline Blue - Biological stain , CAS No.28631-66-5

CAS: 28631-66-5 Cat. No.: A113197 Molecular Weight: 737.72 EC Number: 249-113-9
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GRADE & PURITY Biological Stain ? Biological stain grade — dyes characterized for staining cells and tissues. Use in histology and microscopy where staining consistency matters.
Synonyms
C.I. Acid Blue 22 | Aniline Blue (spirit soluble) , | CI 42755 | Aniline Blue | Acid Blue 22 | ANILINE BLUE SOLUTION
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25g
A113197-25g
3
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100g
A113197-100g
5

$59.90

$75.90
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Why this grade

Biological stain Biological Stain 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 16 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Aniline Blue is the traditional name applied to anionic dyes produced by successive phenylation and sulfonation of basic fuchsine. Aniline blue consists of sulfonation products of variable mixtures of phenylated rosaniline and pararosaniline. It is a mixture of methyl blue and water blue. The dye is also known as cotton blue, and ink blue. Methyl blue of aniline blue belongs to the group of triaminotriphenylmethane dyes.

Specifications

Synonyms
C.I. Acid Blue 22 | Aniline Blue (spirit soluble) , | CI 42755 | Aniline Blue | Acid Blue 22 | ANILINE BLUE SOLUTION
Specifications & Purity
Biological stain
Shipped In
Normal
Grade
Biological Stain
Names and Identifiers
Pubchem Sid504773448
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504773448
Canonical SmilesCC1=CC(=CC(=C1N)S(=O)(=O)[O-])C(=C2C=CC(=NC3=CC=C(C=C3)S(=O)(=O)O)C=C2)C4=CC=C(C=C4)NC5=CC=C(C=C5)S(=O)(=O)[O-].[Na+].[Na+]
IUPAC Namedisodium;2-amino-3-methyl-5-[[4-(4-sulfonatoanilino)phenyl]-[4-(4-sulfophenyl)iminocyclohexa-2,5-dien-1-ylidene]methyl]benzenesulfonate
InChIKeyXOSXWYQMOYSSKB-UHFFFAOYSA-L
INCHI1S/C32H27N3O9S3.2Na/c1-20-18-23(19-30(32(20)33)47(42,43)44)31(21-2-6-24(7-3-21)34-26-10-14-28(15-11-26)45(36,37)38)22-4-8-25(9-5-22)35-27-12-16-29(17-13-27)46(39,40)41;;/h2-19,34H,33H2,1H3,(H,36,37,38)(H,39,40,41)(H,42,43,44);;/q;2*+1/p-2
Isomeric SMILES CC1=CC(=CC(=C1N)S(=O)(=O)[O-])C(=C2C=CC(=NC3=CC=C(C=C3)S(=O)(=O)O)C=C2)C4=CC=C(C=C4)NC5=CC=C(C=C5)S(=O)(=O)[O-].[Na+].[Na+]
Alternate CAS 8004-91-9
Molecular Weight 737.72
Reaxy-Rn 60338171
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=60338171&ln=

Documentation

📋 Safety Data Sheet (SDS)

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

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✅ 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
SuperclassBenzenoids
ClassBenzene and substituted derivatives
SubclassDiphenylmethanes
Intermediate Tree Nodes Not available
Direct ParentDiphenylmethanes
Alternative Parents Benzenesulfonic acids and derivatives  Benzenesulfonyl compounds  1-sulfo,2-unsubstituted aromatic compounds  Aniline and substituted anilines  Aminotoluenes  Sulfonyls  Secondary ketimines  Organosulfonic acids  Azomethines  Secondary amines  Propargyl-type 1,3-dipolar organic compounds  Primary amines  Organopnictogen compounds  Organic sodium salts  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Diphenylmethane - Benzenesulfonate - Benzenesulfonyl group - 1-sulfo,2-unsubstituted aromatic compound - Arylsulfonic acid or derivatives - Aminotoluene - Aniline or substituted anilines - Toluene - Sulfonyl - Organosulfonic acid - Organosulfonic acid or derivatives - Organic sulfonic acid or derivatives - Secondary ketimine - Azomethine - Ketimine - Organic alkali metal salt - Organic 1,3-dipolar compound - Propargyl-type 1,3-dipolar organic compound - Secondary amine - Organic nitrogen compound - Organic oxygen compound - Organopnictogen compound - Organic oxide - Hydrocarbon derivative - Organic sodium salt - Organic salt - Primary amine - Organosulfur compound - Organonitrogen compound - Imine - Amine - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as diphenylmethanes. These are compounds containing a diphenylmethane moiety, which consists of a methane wherein two hydrogen atoms are replaced by two phenyl groups.
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.

4 results found

Lot NumberCertificate TypeDateItem
D2401056Certificate of AnalysisNov 25, 2021 A113197
E2311037Certificate of AnalysisNov 25, 2021 A113197
I2318180Certificate of AnalysisNov 25, 2021 A113197
L2214722Certificate of AnalysisNov 25, 2021 A113197
Chemical and Physical Properties
Molecular Weight737.700 g/mol
XLogP3
Hydrogen Bond Donor Count3
Hydrogen Bond Acceptor Count12
Rotatable Bond Count6
Exact Mass737.055 Da
Monoisotopic Mass737.055 Da
Topological Polar Surface Area244.000 Ų
Heavy Atom Count49
Formal Charge0
Complexity1520.000
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
Documents & Articles
Citations of This Product
References
1. Suping Li, Jingyu Hu, Shiqi Ning, Wei Li, Ru Jiang, Jianguo Huang, Yong Li.  (2023)  Bacillus velezensis HY19 as a sustainable preservative in post-harvest citrus (Citrus reticulata Blanco L.) fruit management.  FOOD CONTROL,      [PMID:] [10.1016/j.foodcont.2023.110068]
2. XingYuan Ma, JianFeng Li.  (2023)  Preparation of full-color carbon quantum dots with multiple emission centers.  Materials Today Communications,      [PMID:] [10.1016/j.mtcomm.2023.106561]
3. Wang Junjie, Chen Jinhao, Wang Wenwen, Lu Jing, Li Yingying, Bai Ting, Chen Jiahui, Zhu Zongmin, Wang Dong.  (2023)  Preparation of boron-containing chitosan derivative and its application as intumescent flame retardant for epoxy resin.  CELLULOSE,  30  (7): (4663-4681).  [PMID:] [10.1007/s10570-023-05174-z]
4. Fenghua Xu, Yi Cheng, Guangcong Ruan, Liqin Fan, Yuting Tian, Zhifeng Xiao, Dongfeng Chen, Yanling Wei.  (2021)  New pathway ameliorating ulcerative colitis: focus on Roseburia intestinalis and the gut-brain axis.  Therapeutic Advances in Gastroenterology,      [PMID:33948112] [10.1177/17562848211004469]
5. Songwei Li, Yijie Dong, Lin Li, Yi Zhang, Xiufen Yang, Hongmei Zeng, Mingwang Shi, Xinwu Pei, Dewen Qiu, Qianhua Yuan.  (2019)  The Novel Cerato-Platanin-Like Protein FocCP1 from Fusarium oxysporum Triggers an Immune Response in Plants.  INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,  20  (11): (2849).  [PMID:31212693] [10.3390/ijms20112849]
6. Yan Xuechao, Zhang Xiaoping, Li Qian.  (2018)  Preparation and characterization of CS/β-CD/Nano-ZnO composite porous membrane optimized by Box-Behnken for the adsorption of Congo red.  ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,  25  (22): (22244-22258).  [PMID:29804255] [10.1007/s11356-018-2110-3]
7. Jian-Dong Cui, Ji Qing Qiu.  (2012)  Production of Extracellular Water-Insoluble Polysaccharide from Pseudomonas sp..  JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY,      [PMID:22533491] [10.1021/jf3006273]
8. Yao Xu, Xin Tang, Yun Xing, Ziyu Pu, Chengshuang Ling, Qing Yang, Xiaoli Xiong.  (2024)  3D hierarchical flowerball-like CoSe2/MnSe nanosheet arrays as a novel electrode for electrochemical sensing of hydrazine.  MICROCHEMICAL JOURNAL,      [PMID:] [10.1016/j.microc.2024.110504]
9. Ke Ning, Junzhi Li, Xiaoyan Yang, Yuanyuan Xie, Rong Pan, Wei Sun, Ling Yu.  (2024)  Microfluidic device-assisted 3D cell spheroids isolation, staining and embedding.  MICROCHEMICAL JOURNAL,      [PMID:] [10.1016/j.microc.2024.111458]
10. Feng-Hua Xu, Xiao Sun, Jun Zhu, Ling-Yang Kong, Yuan Chang, Ning Li, Wen-Xiang Hui, Cong-Peng Zhang, Yi-Ming Cheng, Wen-Xin Han, Zhi-Min Tian, Yan-Ning Qiao, Dong-feng Chen, Lei Liu, Da-Yun Feng, Jing Han.  (2025)  Significance of the gut tract in the therapeutic mechanisms of polydopamine for acute cerebral infarction: neuro-immune interaction through the gut-brain axis.  Frontiers in Cellular and Infection Microbiology,      [PMID:40104260] [10.3389/fcimb.2024.1413018]
11. Jinyao Yin, Xuehuan Zhu, Yalong Chen, Yanyang Lv, Jiaxin Shan, Yuhan Liu, Wenbo Liu, Weiguo Miao, Xiao Li.  (2025)  The Exocyst Subunits EqSec5 and EqSec6 Promote Powdery Mildew Fungus Growth and Pathogenicity.  Journal of Fungi,  11  (1): (73).  [PMID:39852492] [10.3390/jof11010073]
12. Shan Chen, Yang Zheng, Qing Wang, Rong Mu, Xianchao Sun, Guanhua Ma, Liezhao Liu, Jiequn Ren, Kuo Huang, Guokang Chen.  (2025)  Harnessing Streptomyces for the Management of Clubroot Disease of Chinese Cabbage (Brassica rapa subsp. Pekinensis).  Plants-Basel,  14  (14): (2195).  [PMID:40733432] [10.3390/plants14142195]
13. Junyan Liang, Yang Zou, Haiyan Ju, Yonggang Lv.  (2025)  Rapid angiogenic hydrogel nanofiber scaffold promotes random flap regeneration and modulates inflammation.  WOUND REPAIR AND REGENERATION,  33  (2): (e70028).  [PMID:40231635] [10.1111/wrr.70028]
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