2-Aminoazotoluene - ≥97%(HPLC) , CAS No.97-56-3

CAS: 97-56-3 Cat. No.: A131595 Molecular Weight: 225.29 EC Number: 202-591-2
AVAILABLE TO ORDER
GRADE & PURITY ≥97%(HPLC)
Synonyms
Fast Garnet GBC base, 97% | Fat Yellow B | NSC 1797 | o-Aminoazotolueno [Spanish] | Sudan Yellow RRA | BRN 0745567 | HSDB 2639 | NCGC00091180-01 | Aminoazotoluene | Waxakol Yellow NL | Benzenamine, 2-methyl-4-((2-methylphenyl)azo)-, (E)- | NSC 26821 | 2-A
Storage
Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
25g
A131595-25g
3
$70.90
100g
A131595-100g
3
$230.90
500g
A131595-500g
2
$809.90
Enter a quantity for the sizes you want to add.
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Why this grade

≥97%(HPLC) 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.

Overview

Fast Garnet GBC base has been used:

· as a stain in papain activity inhibition assay.

· to stain for tryptase-activity and chymase-like activity.

· to gel stain for esterolytic activity.

Specifications

Synonyms
Fast Garnet GBC base, 97% | Fat Yellow B | NSC 1797 | o-Aminoazotolueno [Spanish] | Sudan Yellow RRA | BRN 0745567 | HSDB 2639 | NCGC00091180-01 | Aminoazotoluene | Waxakol Yellow NL | Benzenamine, 2-methyl-4-((2-methylphenyl)azo)-, (E)- | NSC 26821 | 2-A
Specifications & Purity
≥97%(HPLC)
Storage
Room temperature
Shipped In
Normal
Purity
≥97%(HPLC)
Names and Identifiers
Pubchem Sid488180385
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488180385
Canonical SmilesCC1=CC=CC=C1N=NC2=CC(=C(C=C2)N)C
IUPAC Name2-methyl-4-[(2-methylphenyl)diazenyl]aniline
InChIKeyPFRYFZZSECNQOL-UHFFFAOYSA-N
INCHI1S/C14H15N3/c1-10-5-3-4-6-14(10)17-16-12-7-8-13(15)11(2)9-12/h3-9H,15H2,1-2H3
Isomeric SMILES CC1=CC=CC=C1N=NC2=CC(=C(C=C2)N)C
Molecular Weight 225.29
Reaxy-Rn 745567
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=745567&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
ClassAzobenzenes
SubclassNot available
Intermediate Tree Nodes Not available
Direct ParentAzobenzenes
Alternative Parents Aniline and substituted anilines  Aminotoluenes  Azo compounds  Propargyl-type 1,3-dipolar organic compounds  Primary amines  Organopnictogen compounds  Hydrocarbon derivatives  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Azobenzene - Aniline or substituted anilines - Aminotoluene - Toluene - Monocyclic benzene moiety - Benzenoid - Azo compound - Propargyl-type 1,3-dipolar organic compound - Organic 1,3-dipolar compound - Organopnictogen compound - Organic nitrogen compound - Primary amine - Organonitrogen compound - Amine - Hydrocarbon derivative - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as azobenzenes. These are organonitrogen aromatic compounds that contain a central azo group, where each nitrogen atom is conjugated to a 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.

11 results found

Lot NumberCertificate TypeDateItem
L2207432Certificate of AnalysisJun 09, 2026 A131595
L2207433Certificate of AnalysisJun 09, 2026 A131595
L2207449Certificate of AnalysisJun 09, 2026 A131595
L2207461Certificate of AnalysisJun 09, 2026 A131595
I2528089Certificate of AnalysisOct 15, 2025 A131595
L2402242Certificate of AnalysisDec 04, 2024 A131595
H2131199Certificate of AnalysisJun 06, 2023 A131595
H2131200Certificate of AnalysisJun 06, 2023 A131595
G2109107Certificate of AnalysisApr 14, 2023 A131595
G2109108Certificate of AnalysisApr 14, 2023 A131595
C2304227Certificate of AnalysisMay 21, 2021 A131595

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Chemical and Physical Properties
SolubilityInsoluble in water; Degree of Solubility in water: 7.64 mg/l 25 °C; Soluble in Ether,Toluene,Alcohol,Acetone,Chloroform
Melt Point(°C)101-102 °C
Molecular Weight225.290 g/mol
XLogP33.700
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count3
Rotatable Bond Count2
Exact Mass225.127 Da
Monoisotopic Mass225.127 Da
Topological Polar Surface Area50.700 Ų
Heavy Atom Count17
Formal Charge0
Complexity264.000
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
Citations of This Product
References
1. Shuangying Li, Qingxiang Zhou, Zhi Li, Menghua Liu, Yanhui Li, Chunmao Chen.  (2023)  Sensitive fluorescent probe based on combination of magnetic molecularly imprinted materials and carbon dots derived from prussian blue for p-aminoazobenzene in environmental samples.  Journal of Cleaner Production,      [PMID:] [10.1016/j.jclepro.2023.136827]
2. Qikai Si, Yang Yu, Wenjie Xu, Zhenglong Yang, Hongwu Zhang, Ting Su, Christophe Len, Deyang Zhao.  (2025)  Efficient Alcoholysis Reaction from Furfural Alcohol to Ethyl Levulinate by Sulfonic Acid-Functionalized Furfural Residue.  ACS Sustainable Chemistry & Engineering,      [PMID:] [10.1021/acssuschemeng.4c09398]
Solution Calculators
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