5-ethynyl isophthalic acid - ≥97% , CAS No.432025-97-3

CAS: 432025-97-3 Cat. No.: B300243 Molecular Weight: 190.15 EC Number: 803-987-3
AVAILABLE TO ORDER
GRADE & PURITY ≥97%
Synonyms
5-ethynylisophthalicacid | 5-Ethynylbenzene-1,3-dioic acid | MFCD14635840 | XKEUZQRIANAGPB-UHFFFAOYSA-N | SCHEMBL2709094 | 5-Ethynyl-1,3-benzenedicarboxylic acid | 5-Ethynyl-1,3-benzenedicarboxylic acid, 99% (HPLC) | 5-ETHYNYLBENZENE-1,3-DICARBOXYLIC ACID
Storage
Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
50mg
B300243-50mg
3

$12.90

$19.90
Save $7.00 (35.18%)
100mg
B300243-100mg
1

$21.90

$32.90
Save $11.00 (33.43%)
250mg
B300243-250mg
4

$26.90

$40.90
Save $14.00 (34.23%)
1g
B300243-1g
3

$98.90

$148.90
Save $50.00 (33.58%)
5g
B300243-5g
1

$370.90

$556.90
Save $186.00 (33.40%)
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Why this grade

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

🌡

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

Overview

Application:

MOF linker used for the synthesis of MOFs with pores which can be further functionalized by click chemistry

Specifications

Synonyms
5-ethynylisophthalicacid | 5-Ethynylbenzene-1, 3-dioic acid | MFCD14635840 | XKEUZQRIANAGPB-UHFFFAOYSA-N | SCHEMBL2709094 | 5-Ethynyl-1, 3-benzenedicarboxylic acid | 5-Ethynyl-1, 3-benzenedicarboxylic acid, 99% (HPLC) | 5-ETHYNYLBENZENE-1, 3-DICARBOXYLIC ACID
Specifications & Purity
≥97%
Storage
Room temperature
Shipped In
Normal
Purity
≥97%
Names and Identifiers
Pubchem Sid488197876
Canonical SmilesC#CC1=CC(=CC(=C1)C(=O)O)C(=O)O
IUPAC Name5-ethynylbenzene-1,3-dicarboxylic acid
InChIKeyXKEUZQRIANAGPB-UHFFFAOYSA-N
INCHI1S/C10H6O4/c1-2-6-3-7(9(11)12)5-8(4-6)10(13)14/h1,3-5H,(H,11,12)(H,13,14)
Isomeric SMILES C#CC1=CC(=CC(=C1)C(=O)O)C(=O)O
Molecular Weight 190.15
Reaxy-Rn 14193826
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=14193826&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 Phthalic acid and derivatives
Direct ParentM-phthalic acid and derivatives
Alternative Parents Benzoic acids  Benzoyl derivatives  Dicarboxylic acids and derivatives  Carboxylic acids  Acetylides  Organooxygen compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Meta_phthalic_acid - Benzoic acid - Benzoyl - Dicarboxylic acid or derivatives - Acetylide - Carboxylic acid - Carboxylic acid derivative - 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.

7 results found

Lot NumberCertificate TypeDateItem
C2317815Certificate of AnalysisJan 26, 2026 B300243
K2202022Certificate of AnalysisAug 15, 2025 B300243
K2202020Certificate of AnalysisAug 15, 2025 B300243
K2202021Certificate of AnalysisAug 11, 2025 B300243
K2202078Certificate of AnalysisAug 11, 2025 B300243
D2510048Certificate of AnalysisSep 13, 2022 B300243
F2520101Certificate of AnalysisSep 13, 2022 B300243
Chemical and Physical Properties
Melt Point(°C)245-255 °C
Molecular Weight190.150 g/mol
XLogP31.200
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count4
Rotatable Bond Count3
Exact Mass190.027 Da
Monoisotopic Mass190.027 Da
Topological Polar Surface Area74.600 Ų
Heavy Atom Count14
Formal Charge0
Complexity276.000
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
Solution Calculators
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