AEC, 50X (3-amino-9-ethylcarbazole); for HRP-based detection systems; provides red chromogen depositions. Precipitable peroxidase substrate for immunohistochemical (IHC) staining techniques. In the presence of horseradish peroxidase (HRP), produces a water-insoluble red oxidation product. Although not as sensitive as diaminobenzidine (DAB, 50X;, the red deposit formed at the sites of AEC oxidation make this substrate useful for double labeling. Aqueous-based mounting medium and counterstains must be used for IHC applications since oxidized AEC is soluble in alcohols and xylene (e.g., Crystal Mounting Medium; ). Use with AEC Substrate Buffer .
Substrate for peroxidase. Usage Prepare samples and incubate with antibodies and HRP-labeled probes, follow with all necessary wash steps. ? Prepare 1X AEC Substrate Buffer (dilute AEC Substrate Buffer, 10X;). ? Dilute one part AEC, 50X with 50 parts 1X AEC Substrate Buffer to make 1X AEC Substrate Solution. Mix well. ? Cover tissue sections with 1X AEC Substrate Solution and incubate 10-30 min. at RT. ? Rinse thoroughly with distilled water. If desired, follow with an appropriate aqueous-based counterstain. ? Mount tissue samples with an aqueous-based mounting medium (e.g., Crystal Mounting Medium; ) ? Unused AEC solution can be discarded according to city, county, state, province or country’s regulations

Specifications

Synonyms

Specifications & Purity

≥95%

Biochemical and Physiological Mechanisms

3-Amino-9-ethylcarbazole is a peroxidase substrate suitable for use in immunoblotting and immunohistochemical staining procedures. This substrate produces an insoluble end product that is red in color and can be observed visually.Peroxidase substrate. Ins

Storage

Store at 2-8°C, Argon charged

Shipped In

Wet ice

This product requires cold chain shipping. Ground and other economy services are not available.

Note

Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour. Need more advice on solubility, usage and handling? Please visit our frequently asked questions (FAQ) page for more details.

Purity

≥95%

Names and Identifiers

Pubchem Sid	488180837
Pubchem Sid Url	https://pubchem.ncbi.nlm.nih.gov/substance/488180837
Canonical Smiles	CCN1C2=C(C=C(C=C2)N)C3=CC=CC=C31
IUPAC Name	9-ethylcarbazol-3-amine
InChIKey	OXEUETBFKVCRNP-UHFFFAOYSA-N
INCHI	1S/C14H14N2/c1-2-16-13-6-4-3-5-11(13)12-9-10(15)7-8-14(12)16/h3-9H,2,15H2,1H3
Isomeric SMILES	CCN1C2=C(C=C(C=C2)N)C3=CC=CC=C31
RTECS	FE3590000
UN Number	2811
Packing Group	I
Molecular Weight	210.28
Beilstein	22(4)4936
Reaxy-Rn	174969
Reaxys-RN_link_address	https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=174969&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

Kingdom Organic compounds
- Superclass Organoheterocyclic compounds
  - Class Indoles and derivatives
    - Subclass Carbazoles

Kingdom	Organic compounds
Superclass	Organoheterocyclic compounds
Class	Indoles and derivatives
Subclass	Carbazoles
Intermediate Tree Nodes	Not available
Direct Parent	Carbazoles
Alternative Parents	N-alkylindoles Indoles Substituted pyrroles Benzenoids Heteroaromatic compounds Azacyclic compounds Primary amines Organopnictogen compounds Hydrocarbon derivatives
Molecular Framework	Aromatic heteropolycyclic compounds
Substituents	Carbazole - N-alkylindole - Indole - Benzenoid - Substituted pyrrole - Heteroaromatic compound - Pyrrole - Azacycle - Organic nitrogen compound - Organopnictogen compound - Hydrocarbon derivative - Primary amine - Organonitrogen compound - Amine - Aromatic heteropolycyclic compound
Description	This compound belongs to the class of organic compounds known as carbazoles. These are compounds containing a three ring system containing a pyrrole ring fused on either side to a benzene ring.
External Descriptors	Not available
1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61. DOI: 10.1186/s13321-016-0174-y

3D Structure

Associated Targets(Human)

ALOX15B Tchem Arachidonate 15-lipoxygenase, type II (7244 Activities)

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Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

ALDH1A1 Tchem Aldehyde dehydrogenase 1A1 (77053 Activities)

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Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

HBB Tbio Hemoglobin beta chain (329 Activities)

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Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

SMPD1 Tchem Sphingomyelin phosphodiesterase (13561 Activities)

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Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

GLP1R Tclin Glucagon-like peptide 1 receptor (111429 Activities)

Discover Target: GLP1R

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

HSD17B10 Tchem Endoplasmic reticulum-associated amyloid beta-peptide-binding protein (20669 Activities)

Discover Target: HSD17B10

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

HTT Tchem Huntingtin (19182 Activities)

Discover Target: HTT

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KDM4A Tchem Lysine-specific demethylase 4A (52245 Activities)

Discover Target: KDM4A

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

EHMT2 Tchem Histone-lysine N-methyltransferase, H3 lysine-9 specific 3 (93046 Activities)

Discover Target: EHMT2

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

TDP1 Tchem Tyrosyl-DNA phosphodiesterase 1 (345557 Activities)

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Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

KDM4E Tchem Lysine-specific demethylase 4D-like (40243 Activities)

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Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

HPGD Tchem 15-hydroxyprostaglandin dehydrogenase [NAD+] (24926 Activities)

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Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

GMNN Tbio Geminin (128009 Activities)

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Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

CBX1 Tbio Chromobox protein homolog 1 (92434 Activities)

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Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

ATXN2 Tbio Ataxin-2 (54410 Activities)

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IDH1 Tclin Isocitrate dehydrogenase [NADP] cytoplasmic (40980 Activities)

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MEN1 Tchem Menin/Histone-lysine N-methyltransferase MLL (48157 Activities)

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Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

RUNX1 Tbio Runt-related transcription factor 1/Core-binding factor subunit beta (7867 Activities)

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Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

RACGAP1 Tbio Rac GTPase-activating protein 1 (2057 Activities)

Discover Target: RACGAP1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

Associated Targets(non-human)

Cruzipain (33337 Activities)

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Mapk1 MAP kinase ERK2 (650 Activities)

Discover Target: Mapk1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

Salmonella typhimurium (15756 Activities)

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Plasmodium falciparum (966862 Activities)

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Plasmodium berghei (192651 Activities)

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Txnrd1 Thioredoxin reductase 1, cytoplasmic (45279 Activities)

Discover Target: Txnrd1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

Mapt Microtubule-associated protein tau (6 Activities)

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Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

Impa1 Inositol monophosphatase 1 (16203 Activities)

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FTL Ferritin light chain (43324 Activities)

Discover Target: FTL

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

NS1 Nonstructural protein 1 (33327 Activities)

Discover Target: NS1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

clpP ATP-dependent Clp protease proteolytic subunit (245 Activities)

Discover Target: clpP

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay 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.

13 results found

Lot Number	Certificate Type	Date	Item
A2125347	Certificate of Analysis	Dec 04, 2024	A105545
D2511671	Certificate of Analysis	Apr 03, 2024	A105545
A2219225	Certificate of Analysis	Dec 13, 2021	A105545
A2219232	Certificate of Analysis	Dec 13, 2021	A105545
A2219243	Certificate of Analysis	Dec 13, 2021	A105545
A2219247	Certificate of Analysis	Dec 13, 2021	A105545
B2322162	Certificate of Analysis	Dec 13, 2021	A105545
B2322293	Certificate of Analysis	Dec 13, 2021	A105545
B2322397	Certificate of Analysis	Dec 13, 2021	A105545
D2401021	Certificate of Analysis	Dec 13, 2021	A105545
E2609078	Certificate of Analysis	Dec 13, 2021	A105545
G2307493	Certificate of Analysis	Dec 13, 2021	A105545
I2506025	Certificate of Analysis	Dec 13, 2021	A105545

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Chemical and Physical Properties

Melt Point(°C)	98°C-100°C
Molecular Weight	210.270 g/mol
XLogP3	3.000
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	1
Rotatable Bond Count	1
Exact Mass	210.116 Da
Monoisotopic Mass	210.116 Da
Topological Polar Surface Area	31.000 Å²
Heavy Atom Count	16
Formal Charge	0
Complexity	253.000
Isotope Atom Count	0
Defined Atom Stereocenter Count	0
Undefined Atom Stereocenter Count	0
Defined Bond Stereocenter Count	0
Undefined Bond Stereocenter Count	0
The total count of all stereochemical bonds	0
Covalently-Bonded Unit Count	1

Documents & Articles

Alkaline Phosphatase (AP) and Horseradish Peroxidase (HRP) Colorimetric Detection Systems—A Complete Guide: Mechanisms of Soluble Colorimetric vs. Precipitating Substrates, Selection, and Troubleshooting (with Product Navigator Tables 1–3)

Categories: Technical articles

Tags:

HRP Horseradish peroxidase Alkaline phosphatase AP

Citations of This Product

How to Cite Aladdin Scientific Products? Citations Search

References

1. Hongxia Xiu, Yajie Liu, Huihui Yang, Haibin Ren, Bowen Luo, Zhipeng Wang, Hong Shao, Fengzhong Wang, Jingjian Zhang, Yutang Wang. (2022) Identification of novel umami molecules via QSAR models and molecular docking. Food & Function, 13 (14): (7529-7539). [PMID:35765918] [10.1039/D2FO00544A]
2. Jinmao You, Kun Dou, Cuihua Song, Guoliang Li, Zhiwei Sun, Shijuan Zhang, Guang Chen, Xianen Zhao, Na Hu, Wu Zhou. (2017) 3-(2-Bromoacetamido)-N-(9-ethyl-9H)-carbazol fluorescent probe and its application for the determination of thiophenols in rubber products by HPLC with fluorescence detection and atmospheric chemical ionization mass spectrometry identification. JOURNAL OF SEPARATION SCIENCE, 40 (12): (2528-2540). [PMID:28371096] [10.1002/jssc.201601166]
3. Chunyan Qin, Wei Wen, Xiuhua Zhang, Haoshuang Gu, Shengfu Wang. (2015) Visual detection of thrombin using a strip biosensor through aptamer-cleavage reaction with enzyme catalytic amplification. ANALYST, 140 (22): (7710-7717). [PMID:26451394] [10.1039/C5AN01712B]
4. Xianqing Tang, Hua Zhang, Jinghuang Chen, Donghui Wu, Yu Wang, Jian Sun, Zhenxin Wang, Xiurong Yang. (2025) Ferrous Tungstate Nanomaterials with Excellent Enzyme-Mimicking Activity to Enhance Lateral Flow Immunoassay Sensitivity. ANALYTICAL CHEMISTRY, [PMID:39884848] [10.1021/acs.analchem.4c04761]
5. Xiaoyu Qin, Wenhao Guo, Yining Wang, Xiangdong Cai, Jianxi Xiao. (2025) A Pathological Collagen-Targeting Nanozyme Chip for Ultrasensitive Quantification of Collagen in Body Fluids. ANALYTICAL CHEMISTRY, [PMID:41081707] [10.1021/acs.analchem.5c04014]

Solution Calculators

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3-Amino-9-ethylcarbazole - ≥95% , CAS No.132-32-1

Why this grade

Storage & shipping

Quality documents

Literature proof

Overview

Specifications

Documentation

📋 Safety Data Sheet (SDS)

✅ Certificate of Analysis (COA)

📊 Datasheet

🔬 Specification Sheet

Advanced Data

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Molarity Calculator

Dilution Calculator

Reconstitution Calculator

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