Product
· Fine Chemicals
5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione
5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione
4-甲基六氢苯酐 MHHPA，环氧树脂固化剂，CAS 19438-60-9
Structure
Supplier documents (COA / SDS / spectra)
Quality documents below are attributed to the supplier that issued them. Each shipment ships with a batch-specific Certificate of Analysis; the reports shown are reference batches kept on file. For a verified partner, click a thumbnail to open that supplier's branded product page (with their full batch COA, SDS, spectra and certifications); for other suppliers the document opens directly.
Identifiers
CAS:
19438-60-9IUPAC name: 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione
Formula:
C9H12O3MW: 168.19 g/mol
Structural identifiers
SMILES: CC1CCC2C(C1)C(=O)OC2=O
InChIKey: FKBMTBAXDISZGN-UHFFFAOYSA-N
InChI: InChI=1S/C9H12O3/c1-5-2-3-6-7(4-5)9(11)12-8(6)10/h5-7H,2-4H2,1H3
Specifications
Commercial
Inventory: to order
Sold by
View Shanghai Medfine Bio-pharmaceutical Co., Ltd.'s branded 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione page →
Includes batch COA, SDS, spectra and certifications uploaded by this supplier.
Physical & chemical properties
Computed descriptors aggregated from PubChem for CAS 19438-60-9.
| XLogP | 1.4 |
|---|---|
| Exact mass | 168.078644241 g/mol |
| Monoisotopic mass | 168.078644241 g/mol |
| Topological polar surface area (TPSA) | 43.4 Ų |
| Complexity | 234 |
| H-bond donor count | 0 |
| H-bond acceptor count | 3 |
| Rotatable bond count | 0 |
| Heavy atom count | 12 |
| Formal charge | 0 |
China regulatory compliance
Not listed in hazardous / restricted catalogues
Sourcing & suppliers — 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione
Grounded in ChemExact's verified supplier and document records. Sourcing questions are answered with ChemExact's own network — not third-party marketplaces.
Who supplies 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione in China?
1 verified China-based supplier offer 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione (CAS 19438-60-9) on ChemExact: Shanghai Medfine Bio-pharmaceutical Co., Ltd.. Compare them on this page or request quotes directly — ChemExact lists verified suppliers, never third-party marketplaces.
Which suppliers provide a COA or analysis report for 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione?
Shanghai Medfine Bio-pharmaceutical Co., Ltd. publish a Certificate of Analysis and related quality documents for 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione (CAS 19438-60-9) directly on ChemExact (e.g. a COA issued 2025-10-11), each with batch-level traceability. Open a supplier's page to download.
What is the domestic (China) production capacity for 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione?
Domestic production of 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione (CAS 19438-60-9) is served at industrial scale by verified suppliers on ChemExact. Exact capacity varies by producer and methodology — ChemExact cites authoritative public reports verbatim and does not estimate figures. Request the current available volume and lead time via RFQ for a binding quantity.
Frequently asked questions
Curated by ChemExact's editorial team and reviewed by chemistry and API procurement specialists. Each factual claim is traceable to the cross-source citation graph at the bottom of the page.
What is 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione (CAS 19438-60-9)?
5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione is a chemical compound with molecular formula C9H12O3 and molecular weight ≈ 168.19 g/mol. Its CAS Registry Number is 19438-60-9.
What chemical does CAS 19438-60-9 refer to?
CAS Registry Number 19438-60-9 refers to 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione, molecular formula C9H12O3, molecular weight ≈ 168.19 g/mol. The CAS number is verifiable on PubChem, CAS Common Chemistry and ECHA. To source 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione, submit an RFQ on this page to be matched with ChemExact's verified supplier network, with batch COAs.
What is the molecular formula and weight of 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione (CAS 19438-60-9)?
The molecular formula of 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione is C9H12O3, and the molecular weight is 168.19 g/mol. This data has been cross-verified against PubChem, ChEMBL and CAS Common Chemistry.
What are the SMILES and InChIKey of 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione?
The canonical SMILES of 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione is `CC1CCC2C(C1)C(=O)OC2=O`, and the InChIKey is `FKBMTBAXDISZGN-UHFFFAOYSA-N`. These international identifiers are reusable in PubChem, ChemDraw, RDKit and most cheminformatics toolchains.
What are the common synonyms of 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione?
Common synonyms of 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione include: Hexahydro-4-methylphthalic anhydride, DTXSID8044333, RefChem:786152, DTXCID409330, Hexahydro-5-methyl-1,3-isobenzofurandione, 4-Methylcyclohexane-1,2-dicarboxylic acid anhydride, 243-072-0, 19438-60-9 — 20 synonyms in total. The full list (sourced from PubChem) is available in the page header under "Show synonyms".
What is the current price of 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione (CAS 19438-60-9)?
ChemExact does not publish indicative market prices on public product pages. For 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione, submit an RFQ on this page — verified supplier(s) on ChemExact (Shanghai Medfine Bio-pharmaceutical Co., Ltd.) will return lot-specific quotes with a batch COA, MOQ, lead time, and validity window. Quotes are binding only after supplier confirmation; this page is a procurement reference, not a price list.
How has 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione price trended recently?
5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione pricing follows upstream feedstocks, export demand, and plant turnaround cycles. ChemExact does not quote spot indices on this page. For a procurement decision, submit an RFQ — suppliers respond with current lot pricing and lead time. Independent market bulletins (ICIS, national commodity indices) may be used only as non-binding background reference.
Where can I buy 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione? Who supplies it on ChemExact?
Shanghai Medfine Bio-pharmaceutical Co., Ltd. is a verified supplier for 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione on ChemExact. See the supplier section on this page or the profile at /suppliers/medfine/. Submit an RFQ for lot-specific pricing, COA, MOQ, and lead time.
Who are the major manufacturers of 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione in China?
ChemExact lists 1 verified China-based supplier(s) for 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione (CAS 19438-60-9): Shanghai Medfine Bio-pharmaceutical Co., Ltd.. Compare profiles, documents, and tier on this page, or submit one RFQ to receive parallel quotes with batch COAs. ChemExact matches buyers only through its verified supplier network — not third-party marketplaces.
Which suppliers in East / North / South China stock 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione?
Verified suppliers for 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione on ChemExact: Shanghai Medfine Bio-pharmaceutical Co., Ltd.. Open each supplier profile for city, tier, and documents, or submit one RFQ stating your destination region — ChemExact returns comparable quotes with COAs. Regional discovery is handled through ChemExact's verified network, not external B2B sites.
Who are the largest global producers of 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione?
For international procurement of 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione, start with ChemExact's verified supplier(s) on this page (Shanghai Medfine Bio-pharmaceutical Co., Ltd.) — submit an RFQ for export terms, COA, and Incoterms. For compliance screening only, ECHA REACH (CAS 19438-60-9), US EPA CompTox, and Japan NITE list registered importers/producers — use these registries to verify credentials, not as a substitute for ChemExact sourcing.
What grades of 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione are commercially available?
5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione is typically supplied in the following grades: Industrial / Technical (≥ 99%, bulk feedstock), Reagent (AR/CP/GR, ≥ 99.5%, lab analytics), HPLC / GC (≥ 99.9%, chromatography & spectroscopy). Grade-specific specs are confirmed via the supplier's SDS and CoA. ChemExact lets verified suppliers attach hash-validated CoA/SDS files on their brand product pages.
Related research papers
Open-access publications referencing 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione (CAS 19438-60-9), sourced from OpenAlex.
Copper-Catalyzed Cyclization of 1-Aryl-1-cycloalcohols and 1,3-Dicarbonyl Compounds: Synthesis of Cycloalkane-Fused Dihydrofuran Derivatives
Untargeted Screening of Environmental and Endogenous Metabolites and Risk of Incident COPD: A Prospective Study in Three European Populations
β-Aminosubstituted α,β-Unsaturated Fischer Carbene Complexes as Precursors for Complex Oligocyclic Molecules - Basics and Applications
β-Aminosubstituted α,β-Unsaturated Fischer Carbene Complexes as Precursors for Complex Oligocyclic Molecules - Basics and Applications
Authoritative external references
Every chemistry property, compliance flag and literature claim on this page is traceable to the authoritative external sources below. Click any link to verify on the publishing institution's original page.
- ChEMBL · CHEMBL5944276 ↗ — EMBL-EBI · ChEMBL
- NIST WebBook · Registry Number Not Found ↗ — NIST · Standard Reference Data Program
- OpenAlex papers ↗ — OurResearch · OpenAlex
- China compliance (IECSC) ↗ — MEE · China IECSC
- PubChem Classification · CID 86876 ↗ — National Library of Medicine · PubChem
- PubChem PUG-View · CID 86876 ↗ — National Library of Medicine · PubChem
- PubChem · CID 86876 ↗ — National Library of Medicine · PubChem
Content & data statement.
Commercial information on this page (CAS, HS, EC, purity grade, indicative price band, lead time, inventory status,
REACH and FDA flags) is captured from supplier-controlled documents by the ChemExact editorial desk and reviewed
on a recurring cycle. Chemistry data — structures, synonyms, physico-chemical properties, hazard classifications and
the cited literature — is reconciled against internationally recognised authorities (including but not limited to
PubChem, CAS Common Chemistry, ECHA, China MEM, ChEMBL and OpenAlex) and cross-checked by our editors.
Disclaimer: This page is intended as a procurement-side technical reference and does not constitute legal, regulatory, or medical advice. Lot-level conformity is determined by the supplier-signed CoA and SDS. Transport, storage and handling must follow the applicable jurisdictional regulations and product SDS. If you spot a discrepancy with an authoritative source, please contact our editorial team — we review correction requests within five business days.
Disclaimer: This page is intended as a procurement-side technical reference and does not constitute legal, regulatory, or medical advice. Lot-level conformity is determined by the supplier-signed CoA and SDS. Transport, storage and handling must follow the applicable jurisdictional regulations and product SDS. If you spot a discrepancy with an authoritative source, please contact our editorial team — we review correction requests within five business days.
Ready to request a quote?
5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione (CAS 19438-60-9) — 24h BD response, 48–72h comparative quotes from verified suppliers worldwide.
Get a quote →