3-Amino-4-hydroxybenzoic acid - ≥97% , CAS No.1571-72-8

CAS: 1571-72-8 Cat. No.: A107186 Molecular Weight: 153.14 Beilstein Registry Number: 972238 EC Number: 216-390-2
AVAILABLE TO ORDER
GRADE & PURITY ≥97%
Synonyms
3-Amino-4-hydroxybenzoic acid | 3-amino-4-hydroxy-benzoic acid | W-108006 | DTXSID60166212 | CHEBI:29476 | 3,4-AHBA | BS-3844 | BBL012255 | AC-2757 | J-800248 | KSC-11-207-15 | 1H-Indole,4,5-difluoro-2-methyl- | 3-amino-4-hydroxybenzenecarboxylic acid | E
Storage
Argon charged,Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1g
A107186-1g
5
$9.90
5g
A107186-5g
4
$10.90
10g
A107186-10g
2
$11.90
25g
A107186-25g
4

$25.90

$38.90
Save $13.00 (33.42%)
100g
A107186-100g
4

$48.90

$73.90
Save $25.00 (33.83%)
500g
A107186-500g
1

$243.90

$365.90
Save $122.00 (33.34%)
Enter a quantity for the sizes you want to add.
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Why this grade

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

🌡

Storage & shipping

Argon charged,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

application:

3-Amino-4-hydroxybenzoic acid is used to produce 4-acetoxy-3-acetylamino-benzoic acid with acetic acid anhydride at temperature of 0 - 20°C. This reaction will need reagents aq. HCl and NaOAc.

Specifications

Synonyms
3-Amino-4-hydroxybenzoic acid | 3-amino-4-hydroxy-benzoic acid | W-108006 | DTXSID60166212 | CHEBI:29476 | 3, 4-AHBA | BS-3844 | BBL012255 | AC-2757 | J-800248 | KSC-11-207-15 | 1H-Indole, 4, 5-difluoro-2-methyl- | 3-amino-4-hydroxybenzenecarboxylic acid | E
Specifications & Purity
≥97%
Storage
Argon charged, Room temperature
Shipped In
Normal
Purity
≥97%
Names and Identifiers
Pubchem Sid488183660
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488183660
Canonical SmilesC1=CC(=C(C=C1C(=O)O)N)O
IUPAC Name3-amino-4-hydroxybenzoic acid
InChIKeyMRBKRZAPGUCWOS-UHFFFAOYSA-N
INCHI1S/C7H7NO3/c8-5-3-4(7(10)11)1-2-6(5)9/h1-3,9H,8H2,(H,10,11)
Isomeric SMILES C1=CC(=C(C=C1C(=O)O)N)O
WGK Germany 3
Molecular Weight 153.14
Beilstein 972238
Reaxy-Rn 972238
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=972238&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
SuperclassBenzenoids
ClassBenzene and substituted derivatives
SubclassBenzoic acids and derivatives
Intermediate Tree Nodes Not available
Direct ParentHydroxybenzoic acid derivatives
Alternative Parents Aminobenzoic acids  Benzoic acids  o-Aminophenols  Benzoyl derivatives  Aniline and substituted anilines  1-hydroxy-2-unsubstituted benzenoids  Amino acids  Monocarboxylic acids and derivatives  Carboxylic acids  Primary amines  Organopnictogen compounds  Organooxygen compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Aminobenzoic acid - Aminobenzoic acid or derivatives - Hydroxybenzoic acid - Benzoic acid - O-aminophenol - Aminophenol - Benzoyl - Aniline or substituted anilines - 1-hydroxy-2-unsubstituted benzenoid - Phenol - Amino acid or derivatives - Amino acid - Monocarboxylic acid or derivatives - Carboxylic acid - Carboxylic acid derivative - Organonitrogen compound - Hydrocarbon derivative - Amine - Organic oxide - Organopnictogen compound - Organic oxygen compound - Organic nitrogen compound - Organooxygen compound - Primary amine - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as hydroxybenzoic acid derivatives. These are compounds containing a hydroxybenzoic acid (or a derivative), which is a benzene ring bearing a carboxyl and a hydroxyl groups.
External Descriptors monohydroxybenzoic acid - aminobenzoic acid
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
EGFR Tclin Epidermal growth factor receptor erbB1 (33727 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.

17 results found

Lot NumberCertificate TypeDateItem
L2106278Certificate of AnalysisSep 09, 2025 A107186
H2113063Certificate of AnalysisMay 12, 2025 A107186
E2124017Certificate of AnalysisMar 04, 2025 A107186
F2313114Certificate of AnalysisMay 31, 2023 A107186
K2527125Certificate of AnalysisMay 31, 2023 A107186
F2313289Certificate of AnalysisMay 31, 2023 A107186
F2313117Certificate of AnalysisMay 31, 2023 A107186
F2313115Certificate of AnalysisMay 31, 2023 A107186
F2313113Certificate of AnalysisMay 31, 2023 A107186
F2313109Certificate of AnalysisMay 31, 2023 A107186
H1503043Certificate of AnalysisApr 11, 2023 A107186
B2324407Certificate of AnalysisMar 02, 2023 A107186
B2324399Certificate of AnalysisMar 02, 2023 A107186
B2324408Certificate of AnalysisMar 02, 2023 A107186
B2324406Certificate of AnalysisMar 02, 2023 A107186
D2310215Certificate of AnalysisNov 19, 2021 A107186
F2611153Certificate of AnalysisNov 19, 2021 A107186

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Chemical and Physical Properties
SolubilitySoluble in solvents.
SensitivityLight sensitive; Air sensitive; Moisture sensitive
Melt Point(°C)208°C
Molecular Weight153.140 g/mol
XLogP30.700
Hydrogen Bond Donor Count3
Hydrogen Bond Acceptor Count4
Rotatable Bond Count1
Exact Mass153.043 Da
Monoisotopic Mass153.043 Da
Topological Polar Surface Area83.600 Ų
Heavy Atom Count11
Formal Charge0
Complexity160.000
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. Bo-Wen Liu, Yu-Fei Lei, Xiao-Feng Liu, De-Ming Guo, Li Chen, Yu-Zhong Wang.  (2021)  Thermally induced end-group-capturing as an eco-friendly and general method for enhancing the fire safety of semi-aromatic polyesters.  POLYMER,      [PMID:] [10.1016/j.polymer.2021.123430]
2. Qinglong Zhang, Wen Zheng, Wangyang Lu, Wenxing Chen.  (2026)  Screening of Imidazole-Based Catalysts Through Model Reactions for Efficient Polymerization of AB-Type Polybenzoxazole Monomers and Investigation of the Catalytic Mechanism.  POLYMER ENGINEERING AND SCIENCE,      [PMID:] [10.1002/pen.70462]
Solution Calculators
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