Citraconic Acid - ≥98%(GC)(T) , CAS No.498-23-7

CAS: 498-23-7 Cat. No.: C153469 Formula: C5H6O4 Molecular Weight: 130.1 Beilstein Registry Number: 1722680 EC Number: 207-858-7
AVAILABLE TO ORDER
GRADE & PURITY ≥98%(GC)(T)
Synonyms
Maleic acid, methyl- | MFCD00078086 | (~{z})-2-Methylbut-2-Enedioic Acid | Citraconsaeure | LMFA01170099 | METHYLMALEIC ACID | BRN 1722679 | DB04734 | NSC-32949 | CITRACONIC ACID [MI] | citraconicacid | 4-02-00-02230 (Beilstein Handbook Reference) | CHEBI
Storage
Argon charged,Room temperature
Shipped In
Normal
★
Size
Germany (EU)
USA*
Price
Qty
5g
C153469-5g
—
1 In stock
€23.34
10g
C153469-10g
Made to order · 8–12 wks
€36.36
25g
C153469-25g
—
1 In stock
€77.14
100g
C153469-100g
—
1 In stock
€201.23
Enter a quantity for the sizes you want to add.
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Why this grade

≥98%(GC)(T) 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

Citraconic acid is an important raw material and intermediate used in organic synthesis, pharmaceuticals, agrochemicals and dyestuff fields.

Specifications

Synonyms
Maleic acid, methyl- | MFCD00078086 | (~{z})-2-Methylbut-2-Enedioic Acid | Citraconsaeure | LMFA01170099 | METHYLMALEIC ACID | BRN 1722679 | DB04734 | NSC-32949 | CITRACONIC ACID [MI] | citraconicacid | 4-02-00-02230 (Beilstein Handbook Reference) | CHEBI
Specifications & Purity
≥98%(GC)(T)
Storage
Argon charged,Room temperature
Shipped In
Normal
Purity
≥98%(GC)(T)
Names and Identifiers
Pubchem Sid
Canonical Smiles
CC(=CC(=O)O)C(=O)O
IUPAC Name
(Z)-2-methylbut-2-enedioic acid
InChIKey
HNEGQIOMVPPMNR-IHWYPQMZSA-N
INCHI
1S/C5H6O4/c1-3(5(8)9)2-4(6)7/h2H,1H3,(H,6,7)(H,8,9)/b3-2-
Isomeric SMILES
C/C(=C/C(=O)O)/C(=O)O
WGK Germany
3
RTECS
GE6650000
Molecular Weight
130.1
Beilstein
1722680
Reaxy-Rn
8403179
Reaxys-RN_link_address
https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=8403179&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
SuperclassLipids and lipid-like molecules
ClassFatty Acyls
SubclassFatty acids and conjugates
Intermediate Tree Nodes Branched fatty acids
Direct ParentMethyl-branched fatty acids
Alternative Parents Unsaturated fatty acids  Dicarboxylic acids and derivatives  Carboxylic acids  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAliphatic acyclic compounds
Substituents Methyl-branched fatty acid - Unsaturated fatty acid - Dicarboxylic acid or derivatives - Carboxylic acid - Carboxylic acid derivative - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organooxygen compound - Carbonyl group - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as methyl-branched fatty acids. These are fatty acids with an acyl chain that has a methyl branch. Usually, they are saturated and contain only one or more methyl group. However, branches other than methyl may be present.
External Descriptors Dicarboxylic acids
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.

16 results found

Lot NumberCertificate TypeDateItem
C2214109Certificate of AnalysisDec 10, 2025 C153469
H2125189Certificate of AnalysisJun 09, 2025 C153469
H2125190Certificate of AnalysisJun 09, 2025 C153469
K2408329Certificate of AnalysisJun 25, 2024 C153469
K2408330Certificate of AnalysisJun 25, 2024 C153469
D2314879Certificate of AnalysisDec 22, 2022 C153469
D2314893Certificate of AnalysisDec 22, 2022 C153469
D2314894Certificate of AnalysisDec 22, 2022 C153469
D2314902Certificate of AnalysisDec 22, 2022 C153469
F2510003Certificate of AnalysisDec 22, 2022 C153469
D2407038Certificate of AnalysisJun 16, 2022 C153469
G2215124Certificate of AnalysisJun 16, 2022 C153469
G2215127Certificate of AnalysisJun 16, 2022 C153469
G2215128Certificate of AnalysisJun 16, 2022 C153469
G2215131Certificate of AnalysisJun 16, 2022 C153469
C2214108Certificate of AnalysisFeb 17, 2022 C153469
Chemical and Physical Properties
SolubilitySoluble in water
SensitivityMoisture sensitive
Melt Point(°C)87℃
Molecular Weight130.100 g/mol
XLogP3-0.100
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count4
Rotatable Bond Count2
Exact Mass130.027 Da
Monoisotopic Mass130.027 Da
Topological Polar Surface Area74.600 Ų
Heavy Atom Count9
Formal Charge0
Complexity168.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count1
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds1
Covalently-Bonded Unit Count1
Citations of This Product
Solution Calculators
Reviews

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