5-Ethoxyisophthalic acid - ≥98% , CAS No.203626-61-3

CAS: 203626-61-3 Cat. No.: E768954 Molecular Weight: 210.18 PubChem CID: 45094206
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
5-ethoxy-1,3-Benzenedicarboxylicacid | 1,3-Benzenedicarboxylicacid,5-ethoxy- | 5-Ethoxyisophthalic acid
Storage
Store at 2-8°C,Protected from light
Shipped In
Wet ice
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
250mg
E768954-250mg
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.

$27.90

$29.90
Save $2.00 (6.69%)
1g
E768954-1g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$99.90
5g
E768954-5g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$359.90
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Why this grade

≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at 2-8°C,Protected from light Ships Wet ice 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 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
5-ethoxy-1, 3-Benzenedicarboxylicacid | 1, 3-Benzenedicarboxylicacid, 5-ethoxy- | 5-Ethoxyisophthalic acid
Specifications & Purity
≥98%
Storage
Store at 2-8°C, Protected from light
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥98%
Names and Identifiers
Canonical SmilesCCOC1=CC(=CC(=C1)C(=O)O)C(=O)O
IUPAC Name5-ethoxybenzene-1,3-dicarboxylic acid
InChIKeyWQONHTZYNXJZIC-UHFFFAOYSA-N
INCHI1S/C10H10O5/c1-2-15-8-4-6(9(11)12)3-7(5-8)10(13)14/h3-5H,2H2,1H3,(H,11,12)(H,13,14)
Isomeric SMILES CCOC1=CC(=CC(=C1)C(=O)O)C(=O)O
PubChem CID 45094206
Molecular Weight 210.18

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  Phenoxy compounds  Phenol ethers  Benzoyl derivatives  Alkyl aryl ethers  Carboxylic acids  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Meta_phthalic_acid - Benzoic acid - Phenoxy compound - Phenol ether - Benzoyl - Alkyl aryl ether - Ether - 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.

3 results found

Lot NumberCertificate TypeDateItem
C2620320Certificate of AnalysisJan 13, 2026 E768954
C2620321Certificate of AnalysisJan 13, 2026 E768954
C2623518Certificate of AnalysisJan 13, 2026 E768954
Chemical and Physical Properties
Sensitivitylight and moisture sensitive
Molecular Weight210.180 g/mol
XLogP31.300
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count5
Rotatable Bond Count4
Exact Mass210.053 Da
Monoisotopic Mass210.053 Da
Topological Polar Surface Area83.800 Ų
Heavy Atom Count15
Formal Charge0
Complexity228.000
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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