AVAILABLE TO ORDER
GRADE & PURITY ≥98%(HPLC)(T)
Synonyms
STL557098 | W-203364 | 4-hydroxyisophtalic acid | NSC2445 | NSC-2445 | SALICYLIC ACID IMPURITY B [EP IMPURITY] | BRN 2211981 | 1,3-Benzenedicarboxylic acid, 4-hydroxy- | 4-hydroxyisophthalate | AKOS000121471 | 4-10-00-02091 (Beilstein Handbook Reference)
Storage
Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1g
H157025-1g
7

$10.90

$16.90
Save $6.00 (35.50%)
5g
H157025-5g
9

$29.90

$44.90
Save $15.00 (33.41%)
10g
H157025-10g
2

$48.90

$73.90
Save $25.00 (33.83%)
25g
H157025-25g
5

$96.90

$145.90
Save $49.00 (33.58%)
100g
H157025-100g
1

$310.90

$466.90
Save $156.00 (33.41%)
Enter a quantity for the sizes you want to add.

Specifications

Synonyms
STL557098 | W-203364 | 4-hydroxyisophtalic acid | NSC2445 | NSC-2445 | SALICYLIC ACID IMPURITY B [EP IMPURITY] | BRN 2211981 | 1, 3-Benzenedicarboxylic acid, 4-hydroxy- | 4-hydroxyisophthalate | AKOS000121471 | 4-10-00-02091 (Beilstein Handbook Reference)
Specifications & Purity
≥98%(HPLC)(T)
Storage
Room temperature
Shipped In
Normal
Action Type
ACTIVATOR
Purity
≥98%(HPLC)(T)
Names and Identifiers
Pubchem Sid488181679
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488181679
Canonical SmilesC1=CC(=C(C=C1C(=O)O)C(=O)O)O
IUPAC Name4-hydroxybenzene-1,3-dicarboxylic acid
InChIKeyBCEQKAQCUWUNML-UHFFFAOYSA-N
INCHI1S/C8H6O5/c9-6-2-1-4(7(10)11)3-5(6)8(12)13/h1-3,9H,(H,10,11)(H,12,13)
Isomeric SMILES C1=CC(=C(C=C1C(=O)O)C(=O)O)O
RTECS NT2544000
Molecular Weight 182.13
Beilstein 10(3)2193
Reaxy-Rn 2211981
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=2211981&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
SuperclassBenzenoids
ClassBenzene and substituted derivatives
SubclassBenzoic acids and derivatives
Intermediate Tree Nodes Phthalic acid and derivatives
Direct ParentM-phthalic acid and derivatives
Alternative Parents Salicylic acids  Benzoic acids  Benzoyl derivatives  1-hydroxy-2-unsubstituted benzenoids  Dicarboxylic acids and derivatives  Vinylogous acids  Carboxylic acids  Organooxygen compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Meta_phthalic_acid - Salicylic acid - Salicylic acid or derivatives - Hydroxybenzoic acid - Benzoic acid - Benzoyl - 1-hydroxy-2-unsubstituted benzenoid - Phenol - Dicarboxylic acid or derivatives - Vinylogous acid - Carboxylic acid derivative - Carboxylic acid - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organooxygen compound - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as m-phthalic acid and derivatives. These are aromatic compounds containing a benzene ring bearing a carboxylic acid group at ring carbon atoms 1 and 2.
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.

10 results found

Lot NumberCertificate TypeDateItem
G1721029Certificate of AnalysisFeb 08, 2025 H157025
E2409037Certificate of AnalysisJun 24, 2022 H157025
E2529192Certificate of AnalysisJun 24, 2022 H157025
G2321052Certificate of AnalysisJun 24, 2022 H157025
G2321070Certificate of AnalysisJun 24, 2022 H157025
I2224384Certificate of AnalysisJun 24, 2022 H157025
I2224390Certificate of AnalysisJun 24, 2022 H157025
I2224392Certificate of AnalysisJun 24, 2022 H157025
J2516059Certificate of AnalysisJun 24, 2022 H157025
F2124221Certificate of AnalysisJun 15, 2021 H157025
Chemical and Physical Properties
SolubilityVery soluble in Alcohol,Ether
Molecular Weight182.130 g/mol
XLogP31.500
Hydrogen Bond Donor Count3
Hydrogen Bond Acceptor Count5
Rotatable Bond Count2
Exact Mass182.022 Da
Monoisotopic Mass182.022 Da
Topological Polar Surface Area94.800 Ų
Heavy Atom Count13
Formal Charge0
Complexity225.000
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
References
1. Yuan Liu, Binghui Xue, Jiadong Chen, Yuyan Lai, Linkun Cai, Panchao Yin.  (2024)  Supramolecular Complexation Reinforced Polymer Frustrated Packing: Controllable Dual Porosity for Improved Permselectivity of Coordination Nanocage Mixed Matrix Membranes.  Small,  20  (38): (2400605).  [PMID:38794874] [10.1002/smll.202400605]
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