4-Oxocyclopentane-1,2-dicarboxylic acid - ≥98% , CAS No.1703-61-3

CAS: 1703-61-3 Cat. No.: O690508 Molecular Weight: 172.14 EC Number: 605-579-9
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
1,2-Cyclopentanedicarboxylicacid,4-oxo- | 4-Oxo-1,2-cyclopentanedicarboxylicacid | 4-Oxo-1,2-cyclopentanedicarboxylicacid | Cyclopentanone-3,4-dicarboxylicacid | 4-oxocyclopentane-1,2-dicarboxylicacid | 4-Cyclopentanone-1,2-dicarboxylicacid | TIANFU-CHEM1
Storage
Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1g
O690508-1g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$9.90
5g
O690508-5g
4
$18.90
25g
O690508-25g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$49.90
100g
O690508-100g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$169.90
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Why this grade

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

🌡

Storage & shipping

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

Specifications

Synonyms
1, 2-Cyclopentanedicarboxylicacid, 4-oxo- | 4-Oxo-1, 2-cyclopentanedicarboxylicacid | 4-Oxo-1, 2-cyclopentanedicarboxylicacid | Cyclopentanone-3, 4-dicarboxylicacid | 4-oxocyclopentane-1, 2-dicarboxylicacid | 4-Cyclopentanone-1, 2-dicarboxylicacid | TIANFU-CHEM1
Specifications & Purity
≥98%
Storage
Room temperature
Shipped In
Normal
Purity
≥98%
Names and Identifiers
Canonical SmilesC1C(C(CC1=O)C(=O)O)C(=O)O
IUPAC Name4-oxocyclopentane-1,2-dicarboxylic acid
InChIKeyCJSMOECOKYPHSC-UHFFFAOYSA-N
INCHI1S/C7H8O5/c8-3-1-4(6(9)10)5(2-3)7(11)12/h4-5H,1-2H2,(H,9,10)(H,11,12)
Isomeric SMILES C1C(C(CC1=O)C(=O)O)C(=O)O
Alternate CAS 1703-61-3,3128-18-5
NSC Number 146529
Molecular Weight 172.14

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
SuperclassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
SubclassDicarboxylic acids and derivatives
Intermediate Tree Nodes Not available
Direct ParentDicarboxylic acids and derivatives
Alternative Parents Cyclic ketones  Carboxylic acids  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAliphatic homomonocyclic compounds
Substituents Dicarboxylic acid or derivatives - Cyclic ketone - Ketone - Carboxylic acid - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organooxygen compound - Carbonyl group - Aliphatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as dicarboxylic acids and derivatives. These are organic compounds containing exactly two carboxylic acid groups.
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.

4 results found

Lot NumberCertificate TypeDateItem
L2525545Certificate of AnalysisNov 06, 2025 O690508
L2525546Certificate of AnalysisNov 06, 2025 O690508
L2525579Certificate of AnalysisNov 06, 2025 O690508
L2525580Certificate of AnalysisNov 06, 2025 O690508
Chemical and Physical Properties
SensitivityHygroscopic
Molecular Weight172.130 g/mol
XLogP3-1.300
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count5
Rotatable Bond Count2
Exact Mass172.037 Da
Monoisotopic Mass172.037 Da
Topological Polar Surface Area91.700 Ų
Heavy Atom Count12
Formal Charge0
Complexity220.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count2
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Solution Calculators
Reviews

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