8-Hydroxyquinoline-5-sulfonic Acid - ≥97% , CAS No.84-88-8

CAS: 84-88-8 Cat. No.: H189222 Molecular Weight: 225.22 EC Number: 201-570-5
AVAILABLE TO ORDER
GRADE & PURITY ≥97%
Synonyms
8-Quinolinol-5-sulfonic acid | CCRIS 5750 | 8-Hydroxy-5-sulfoquinoline | 8-Hydroxy-5-quinolinesulfonic acid | CCG-19815 | DTXSID7041542 | 8-HYDROXY-5-QUINOLINESULFONIC ACID [MI] | BRN 0195247 | 8-Hydroxyquinoline-5-sulfonate | 8-HYDROXYQUINOLINE-5-SULFONI
Storage
Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
5g
H189222-5g
5

$9.90

$14.90
Save $5.00 (33.56%)
25g
H189222-25g
6

$24.90

$37.90
Save $13.00 (34.30%)
100g
H189222-100g
3

$78.90

$118.90
Save $40.00 (33.64%)
500g
H189222-500g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.

$293.90

$440.90
Save $147.00 (33.34%)
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Why this grade

≥97% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

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

Specifications

Synonyms
8-Quinolinol-5-sulfonic acid | CCRIS 5750 | 8-Hydroxy-5-sulfoquinoline | 8-Hydroxy-5-quinolinesulfonic acid | CCG-19815 | DTXSID7041542 | 8-HYDROXY-5-QUINOLINESULFONIC ACID [MI] | BRN 0195247 | 8-Hydroxyquinoline-5-sulfonate | 8-HYDROXYQUINOLINE-5-SULFONI
Specifications & Purity
≥97%
Storage
Room temperature
Shipped In
Normal
Purity
≥97%
Names and Identifiers
Pubchem Sid488180160
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488180160
Canonical SmilesC1=CC2=C(C=CC(=C2N=C1)O)S(=O)(=O)O
IUPAC Name8-hydroxyquinoline-5-sulfonic acid
InChIKeyLGDFHDKSYGVKDC-UHFFFAOYSA-N
INCHI1S/C9H7NO4S/c11-7-3-4-8(15(12,13)14)6-2-1-5-10-9(6)7/h1-5,11H,(H,12,13,14)
Isomeric SMILES C1=CC2=C(C=CC(=C2N=C1)O)S(=O)(=O)O
Molecular Weight 225.22
Reaxy-Rn 195247
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=195247&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
ClassQuinolines and derivatives
SubclassHydroxyquinolines
Intermediate Tree Nodes Not available
Direct ParentHydroxyquinolines
Alternative Parents 8-hydroxyquinolines  1-sulfo,2-unsubstituted aromatic compounds  1-hydroxy-2-unsubstituted benzenoids  Pyridines and derivatives  Sulfonyls  Organosulfonic acids  Heteroaromatic compounds  Azacyclic compounds  Organopnictogen compounds  Organooxygen compounds  Organonitrogen compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteropolycyclic compounds
Substituents Hydroxyquinoline - 8-hydroxyquinoline - Arylsulfonic acid or derivatives - 1-sulfo,2-unsubstituted aromatic compound - 1-hydroxy-2-unsubstituted benzenoid - Pyridine - Benzenoid - Organic sulfonic acid or derivatives - Organosulfonic acid or derivatives - Heteroaromatic compound - Sulfonyl - Organosulfonic acid - Azacycle - Organic nitrogen compound - Hydrocarbon derivative - Organic oxide - Organopnictogen compound - Organosulfur compound - Organooxygen compound - Organonitrogen compound - Organic oxygen compound - Aromatic heteropolycyclic compound
DescriptionThis compound belongs to the class of organic compounds known as hydroxyquinolines. These are compounds containing a quinoline moiety bearing a hydroxyl group.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
COMT Tclin Catechol O-methyltransferase (404 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
METAP1 Tchem Methionine aminopeptidase 1 (614 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
METAP2 Tchem Methionine aminopeptidase 2 (1512 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Associated Targets(non-human)
Candida albicans (78123 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Nakaseomyces glabratus (9108 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.

12 results found

Lot NumberCertificate TypeDateItem
J2516582Certificate of AnalysisOct 23, 2025 H189222
J2516583Certificate of AnalysisOct 23, 2025 H189222
J2516584Certificate of AnalysisOct 23, 2025 H189222
I2518100Certificate of AnalysisSep 28, 2025 H189222
J2218527Certificate of AnalysisAug 07, 2025 H189222
J2218528Certificate of AnalysisAug 07, 2025 H189222
J2218531Certificate of AnalysisAug 07, 2025 H189222
F2517442Certificate of AnalysisJul 03, 2024 H189222
J2021028Certificate of AnalysisAug 04, 2023 H189222
B2429028Certificate of AnalysisOct 27, 2022 H189222
J2218534Certificate of AnalysisOct 27, 2022 H189222
G1905087Certificate of AnalysisMay 13, 2022 H189222

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Chemical and Physical Properties
Molecular Weight225.220 g/mol
XLogP31.000
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count5
Rotatable Bond Count1
Exact Mass225.01 Da
Monoisotopic Mass225.01 Da
Topological Polar Surface Area95.900 Ų
Heavy Atom Count15
Formal Charge0
Complexity323.000
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. Qian Wang, Longlong Li, Qinglin Tang, Jin Liu, Yao Wang, Jiuxing Wang, Matt J. Kipper, Haijiao Xie, Laurence A. Belfiore, Jianguo Tang.  (2022)  Ligand-Tuned Multi-Color Luminescence of Single Aluminum (III) Ion Atomic Centers and Their Selective Sensitivity to Different Metal Ions.  Materials,  15  (15): (5199).  [PMID:35955134] [10.3390/ma15155199]
2. Guo Tongtong, Yang Shuang, Chen Yunning, Yang Lu, Sun Yingnan, Shang Qingkun.  (2020)  Photocatalytic kinetics and cyclic stability of photocatalysts Fe-complex/TiO2 in the synergistic degradation of phenolic pollutants and reduction of Cr(VI).  ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,  28  (10): (12459-12473).  [PMID:33079350] [10.1007/s11356-020-11220-1]
3. Qiqi Wang, Mei Liu, Shuo Wang, Lulu Shi.  (2024)  Synthesis and characterization of a new cucurbit[6]uril-based supramolecular framework and its application in water contaminants detection and anticounterfeiting applications.  JOURNAL OF MOLECULAR STRUCTURE,      [PMID:] [10.1016/j.molstruc.2024.141250]
Solution Calculators
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