Indigotin - CP, ≥85% , CAS No.482-89-3

CAS: 482-89-3 Cat. No.: I104182 Molecular Weight: 262.26 Beilstein Registry Number: 88275 EC Number: 207-586-9
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GRADE & PURITY CP ? Chemically Pure grade — moderate purity above technical grade but below analytical. Use for general lab reactions where ultra-low impurities aren't critical. ≥85%
Synonyms
(2E)-2-(3-oxoindolin-2-ylidene)indolin-3-one | (2E)-2,2'-biindole-3,3'(1H,1'H)-dione | .DELTA.2,2'-Bipseudoindoxyl | indigo B | 2001554-70-5 | CI 73000 [INCI] | CI Vat Blue 1 | D&C Blue No. 6 [II] | NSC-8645 | SCHEMBL56085 | SMR000857361 | C.I. 73000 | Di
Storage
Desiccated,Room temperature
Shipped In
Normal
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Size
Status
Price
Qty
25g
I104182-25g
3
$13.90
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Why this grade

CP, ≥85% CP for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Desiccated,Room temperature 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 35 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
(2E)-2-(3-oxoindolin-2-ylidene)indolin-3-one | (2E)-2, 2'-biindole-3, 3'(1H, 1'H)-dione | .DELTA.2, 2'-Bipseudoindoxyl | indigo B | 2001554-70-5 | CI 73000 [INCI] | CI Vat Blue 1 | D&C Blue No. 6 [II] | NSC-8645 | SCHEMBL56085 | SMR000857361 | C.I. 73000 | Di
Specifications & Purity
CP, ≥85%
Storage
Desiccated, Room temperature
Shipped In
Normal
Grade
CP
Purity
≥85%
Names and Identifiers
Canonical SmilesC1=CC=C2C(=C1)C(=C(N2)C3=NC4=CC=CC=C4C3=O)O
IUPAC Name2-(3-hydroxy-1H-indol-2-yl)indol-3-one
InChIKeyQQILFGKZUJYXGS-UHFFFAOYSA-N
INCHI1S/C16H10N2O2/c19-15-9-5-1-3-7-11(9)17-13(15)14-16(20)10-6-2-4-8-12(10)18-14/h1-8,17,19H
Isomeric SMILES C1=CC=C2C(=C1)C(=C(N2)C3=NC4=CC=CC=C4C3=O)O
WGK Germany 1
RTECS DU2988400
Molecular Weight 262.26
Beilstein 88275
Reaxy-Rn 37935110
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=37935110&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
SuperclassOrganoheterocyclic compounds
ClassIndoles and derivatives
SubclassHydroxyindoles
Intermediate Tree Nodes Not available
Direct ParentHydroxyindoles
Alternative Parents Indoles  Aryl ketones  Substituted pyrroles  Benzenoids  Heteroaromatic compounds  Ketimines  Propargyl-type 1,3-dipolar organic compounds  Azacyclic compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteropolycyclic compounds
Substituents Hydroxyindole - Indole - Aryl ketone - Benzenoid - Substituted pyrrole - Pyrrole - Heteroaromatic compound - Ketimine - Ketone - Azacycle - Organic 1,3-dipolar compound - Propargyl-type 1,3-dipolar organic compound - Imine - Hydrocarbon derivative - Organooxygen compound - Organonitrogen compound - Organic oxide - Organic oxygen compound - Organic nitrogen compound - Aromatic heteropolycyclic compound
DescriptionThis compound belongs to the class of organic compounds known as hydroxyindoles. These are organic compounds containing an indole moiety that carries a hydroxyl group.
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
A2207287Certificate of AnalysisOct 13, 2025 I104182
F2517480Certificate of AnalysisJul 01, 2025 I104182
H2117221Certificate of AnalysisJun 09, 2025 I104182
H2323070Certificate of AnalysisAug 31, 2023 I104182
Chemical and Physical Properties
Flash Point(°F)>428℉
Flash Point(°C)>220℃
Melt Point(°C)390-392°C
Molecular Weight262.260 g/mol
XLogP32.700
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count3
Rotatable Bond Count1
Exact Mass262.074 Da
Monoisotopic Mass262.074 Da
Topological Polar Surface Area65.500 Ų
Heavy Atom Count20
Formal Charge0
Complexity448.000
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
Documents & Articles
Citations of This Product
References
1. Mingyi Yao, Jian Liu, Narengaowa, Yonggu Li, Feng Zhao.  (2023)  In situ detection of natural dyes in archaeological textiles by SERS substrates immobilized on the fiber.  MICROCHEMICAL JOURNAL,      [PMID:] [10.1016/j.microc.2023.108939]
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3. Yanqing Li, Yingwu Lin, Fang Wang, Jinghan Wang, Osami Shoji, Jiakun Xu.  (2023)  Construction of Biocatalysts Using the P450 Scaffold for the Synthesis of Indigo from Indole.  INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,  24  (3): (2395).  [PMID:36768714] [10.3390/ijms24032395]
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10. Huifang Yin, Hongping Chen, Meng Yan, Zhikun Li, Rongdi Yang, Yanjiao Li, Yanfang Wang, Jianyi Guan, Huili Mao, Yan Wang, Yuyang Zhang.  (2021)  Efficient Bioproduction of Indigo and Indirubin by Optimizing a Novel Terpenoid Cyclase XiaI in Escherichia coli.  ACS Omega,      [PMID:34396002] [10.1021/acsomega.1c02679]
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12. Shi-Qi Tian, Jing-Yao Qi, Yun-Peng Wang, Yu-Lei Liu, Lu Wang, Jun Ma.  (2021)  Heterogeneous catalytic ozonation of atrazine with Mn-loaded and Fe-loaded biochar.  WATER RESEARCH,      [PMID:33540342] [10.1016/j.watres.2021.116860]
13. Yao Shen, Bo Chen, Han Zuilhof, Teris A. van Beek.  (2020)  Microfluidic Chip-Based Induced Phase Separation Extraction as a Fast and Efficient Miniaturized Sample Preparation Method.  MOLECULES,  26  (1): (38).  [PMID:33374763] [10.3390/molecules26010038]
14. Kang Yang, Songyan Li, Kaiqiang Zhang, Yongwei Wang.  (2020)  Synergy of hydrophilic nanoparticle and nonionic surfactant on stabilization of carbon dioxide-in-brine foams at elevated temperatures and extreme salinities.  FUEL,      [PMID:] [10.1016/j.fuel.2020.119624]
15. Zhen Deshuai, Shi Sisi, Gao Chan, Kang Qing, Xiao Xilin, Grimes Craig A., Cai Qingyun.  (2020)  Bi, Fe, and Ti ternary co-doped ZrO2 nanocomposites as a mass spectrometry matrix for the determination of bisphenol A and tetrabromobisphenol A in tea.  MICROCHIMICA ACTA,  187  (10): (1-10).  [PMID:32980997] [10.1007/s00604-020-04544-9]
16. Xiaoyan Li, Kangkang Wang, Mengqian Wang, Wei Zhang, Jiming Yao, Sridhar Komarneni.  (2020)  Sustainable electrochemical dyeing of indigo with Fe(Ⅱ)-based complexes.  Journal of Cleaner Production,      [PMID:] [10.1016/j.jclepro.2020.123251]
17. Tao Ruiyang, Chen Chong, Sheng Xiang, Xia Ruocheng, Zhang Xiaochun, Zhang Jingyi, Yang Zihao, Zhang Suhua, Li Chengtao.  (2019)  Validation of the Investigator 24plex QS Kit: A 6-dye Multiplex PCR Assay for Forensic Application in the Chinese Han Population.  Forensic Sciences Research,  (2): (172-180).  [PMID:35784410] [10.1080/20961790.2019.1665160]
18. Xiao Dong Tan, Wei Xiong, Jin Zhang, Jie Xu, Chang Hai Yi.  (2018)  Indirect Electrochemical Reduction of Indigo and Dyeing.  KEY ENGINEERING MATERIALS,      [PMID:] [10.4028/www.scientific.net/KEM.773.379]
19. Xiaoming Chen, Tao Wang, Leimiao Lin, Fangjie Wo, Yaqin Liu, Xiao Liang, Hui Ye, Jianmin Wu.  (2018)  Tip-Enhanced Photoinduced Electron Transfer and Ionization on Vertical Silicon Nanowires.  ACS Applied Materials & Interfaces,      [PMID:29648434] [10.1021/acsami.8b00506]
20. Wu Xunxun, Chen Xiaofei, Jia Dan, Cao Yan, Gao Shouhong, Guo Zhiying, Zerbe Philipp, Chai Yifeng, Diao Yong, Zhang Lei.  (2016)  Characterization of anti-leukemia components from Indigo naturalis using comprehensive two-dimensional K562/cell membrane chromatography and in silico target identification.  Scientific Reports,  (1): (1-13).  [PMID:27150638] [10.1038/srep25491]
21. Hong Xie, Xiaoliang Ye, Kaiyue Duan, Muyin Xue, Yongling Du, Weichun Ye, Chunming Wang.  (2015)  CuAu–ZnO–graphene nanocomposite: A novel graphene-based bimetallic alloy-semiconductor catalyst with its enhanced photocatalytic degradation performance.  JOURNAL OF ALLOYS AND COMPOUNDS,      [PMID:] [10.1016/j.jallcom.2015.02.159]
22. Ruijuan Qu, Bingzhe Xu, Lingjun Meng, Liansheng Wang, Zunyao Wang.  (2014)  Ozonation of indigo enhanced by carboxylated carbon nanotubes: Performance optimization, degradation products, reaction mechanism and toxicity evaluation.  WATER RESEARCH,      [PMID:25462739] [10.1016/j.watres.2014.10.017]
23. Zheng-Jun Cheng, Hong-Mei Zhao, Qian-Yong Xu, Rong Liu.  (2013)  Investigation of the interaction between indigotin and two serum albumins by spectroscopic approaches.  Journal of Pharmaceutical Analysis,      [PMID:29403826] [10.1016/j.jpha.2013.01.004]
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