4-methylphthalic anhydride - ≥97% , CAS No.19438-61-0

CAS: 19438-61-0 Cat. No.: M132537 Molecular Weight: 162.14 EC Number: 243-073-6
AVAILABLE TO ORDER
GRADE & PURITY ≥97%
Synonyms
?4-Methylphthalic anhydride | 5-methyl-1,3-dihydro-2-benzofuran-1,3-dione | F0001-0695 | 2P2740FPCK | MFCD00041856 | NCGC00164147-02 | Q27255318 | 4-methyl phthalic anhydride | NCGC00257380-01 | 4methylphthalic anhydride | 4-Methylphthalic anhydride | DTX
Storage
Argon charged,Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
5g
M132537-5g
3

$13.90

$20.90
Save $7.00 (33.49%)
25g
M132537-25g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.

$31.90

$47.90
Save $16.00 (33.40%)
100g
M132537-100g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.

$117.90

$176.90
Save $59.00 (33.35%)
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Why this grade

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

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Storage & shipping

Argon charged,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 6 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
?4-Methylphthalic anhydride | 5-methyl-1, 3-dihydro-2-benzofuran-1, 3-dione | F0001-0695 | 2P2740FPCK | MFCD00041856 | NCGC00164147-02 | Q27255318 | 4-methyl phthalic anhydride | NCGC00257380-01 | 4methylphthalic anhydride | 4-Methylphthalic anhydride | DTX
Specifications & Purity
≥97%
Storage
Argon charged, Room temperature
Shipped In
Normal
Purity
≥97%
Names and Identifiers
Pubchem Sid508809665
Canonical SmilesCC1=CC2=C(C=C1)C(=O)OC2=O
IUPAC Name5-methyl-2-benzofuran-1,3-dione
InChIKeyZOXBWJMCXHTKNU-UHFFFAOYSA-N
INCHI1S/C9H6O3/c1-5-2-3-6-7(4-5)9(11)12-8(6)10/h2-4H,1H3
Isomeric SMILES CC1=CC2=C(C=C1)C(=O)OC2=O
Molecular Weight 162.14
Reaxy-Rn 123737
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=123737&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.

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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
SuperclassOrganoheterocyclic compounds
ClassBenzofurans
SubclassBenzofuranones
Intermediate Tree Nodes Not available
Direct ParentPhthalic anhydrides
Alternative Parents Isobenzofuranones  Dicarboxylic acids and derivatives  Benzenoids  Carboxylic acid anhydrides  Oxacyclic compounds  Organooxygen compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteropolycyclic compounds
Substituents Phthalic anhydride - Phthalic_anhydride - Isobenzofuranone - Isocoumaran - Benzenoid - Dicarboxylic acid or derivatives - Carboxylic acid anhydride - Oxacycle - Carboxylic acid derivative - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organooxygen compound - Aromatic heteropolycyclic compound
DescriptionThis compound belongs to the class of organic compounds known as phthalic anhydrides. These are compounds containing a phthalic anhydride moiety (or a derivative thereof), which consists of a benzene fused to a furan-1,3-dione.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
THRB Tclin Thyroid hormone receptor beta-1 (7926 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mechanisms of Action
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.

8 results found

Lot NumberCertificate TypeDateItem
D2622016Certificate of AnalysisNov 08, 2025 M132537
J2530160Certificate of AnalysisNov 08, 2025 M132537
L2121065Certificate of AnalysisJul 14, 2025 M132537
E23061074Certificate of AnalysisFeb 07, 2025 M132537
E23061075Certificate of AnalysisFeb 07, 2025 M132537
E23061088Certificate of AnalysisFeb 07, 2025 M132537
K2110034Certificate of AnalysisAug 15, 2023 M132537
E23061091Certificate of AnalysisApr 18, 2023 M132537
Chemical and Physical Properties
SolubilitySolubility in water: insoluble Solubility in other solvents: soluble in chloroform
SensitivityMoisture sensitive
Boil Point(°C)299°C
Melt Point(°C)89-94°C
Molecular Weight162.140 g/mol
XLogP31.700
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count3
Rotatable Bond Count0
Exact Mass162.032 Da
Monoisotopic Mass162.032 Da
Topological Polar Surface Area43.400 Ų
Heavy Atom Count12
Formal Charge0
Complexity234.000
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
Citations of This Product
References
1. Ao Nan Lai, Dong Guo, Chen Xiao Lin, Qiu Gen Zhang, Ai Mei Zhu, Mei Ling Ye, Qing Lin Liu.  (2016)  Enhanced performance of anion exchange membranes via crosslinking of ion cluster regions for fuel cells.  JOURNAL OF POWER SOURCES,      [PMID:] [10.1016/j.jpowsour.2016.07.043]
2. Ao Nan Lai, Yi Zhi Zhuo, Chen Xiao Lin, Qiu Gen Zhang, Ai Mei Zhu, Mei Ling Ye, Qing Lin Liu.  (2015)  Side-chain-type phenolphthalein-based poly(arylene ether sulfone nitrile)s anion exchange membrane for fuel cells.  JOURNAL OF MEMBRANE SCIENCE,      [PMID:] [10.1016/j.memsci.2015.12.044]
3. Changzeng Wang, Shuxin Li, Ye Yuan, Yundong Ji, Dongfeng Cao.  (2024)  Phenyl propyl polysiloxane modified epoxy resin I: The content, phase structures and macroproperties.  POLYMER,      [PMID:] [10.1016/j.polymer.2024.127368]
4. Hao Chen, Hao Jiang, Mei Yan, Chongshen Guo.  (2025)  Substituent engineering of edge-modified cobalt polyphthalocyanine for optimizing near-infrared photocatalytic imines synthesis: dual regulation of surface catalytic reactions.  Journal of Energy Chemistry,      [PMID:] [10.1016/j.jechem.2025.07.023]
5. Xinming Du, Zhe Wang, Hongyu Zhang, Wenchang Liu, Jingmei Xu.  (2020)  Constructing micro-phase separation structure by multi-arm side chains to improve the property of anion exchange membrane.  INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,      [PMID:] [10.1016/j.ijhydene.2020.04.264]
6. Changzeng Wang, Shuxin Li, Dongfeng Cao, Yundong Ji, Chengxin Xu, Dongzhi Wang.  (2025)  Phenyl propyl polysiloxane modified epoxy resin IV: flame retardancy and smoke suppression.  POLYMER DEGRADATION AND STABILITY,      [PMID:] [10.1016/j.polymdegradstab.2025.111448]
Solution Calculators
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