1,2,3,6-Tetrahydromethyl-3,6-methanophthalic anhydride

CAS 25134-21-8

Used in 1 industrial sector tracked by the EPA.

US production154.1K lb

Import volumeZero

Import dependency0%

Top sourceNo public record

Production is reported production, not a complete census of factories. Production reporting year: 2023.

Where It Comes From

EPA reports by year

2023: US production 154.1K lb · Imports Zero
2019: US production Zero · Imports 1.4M lb

EPA-registered manufacturers (1)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Dixie Chemical

Domestic parents -- activity not disclosed (2)

EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.

Fci

Marubeni America

Why It Matters

Sectors

Core Chemicals

Downstream UsesNot recorded

FDA Shortage Status

Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."

No FDA shortage records

Industrial Uses

Used in 2 sectors as 1 functional role.

•Intermediate in All Other Basic Organic Chemical Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Intermediate in All Other Chemical Product and Preparation Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$18.00/gMedKoo Biosciences, Inc

CountryUnited States

Pack$450.00 / 25 g

Purity98%

Vendors1 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

Chemical Identity

CAS25134-21-8

PubChem CID32802

DTXSIDDTXSID6027844

FormulaC10H10O3

Mol. Weight178.18 g/mol

SMILESCC12CC(C=C1)C3C2C(=O)OC3=O

Data Sources

EPA CompTox (DSSTox) · DTXSID6027844Retrieved 2026-04-06
PubChem · compound 32802Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04

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Brief citations

1,2,3,6-Tetrahydromethyl-3,6-methanophthalic anhydride (CAS 25134-21-8) https://chemicalindependence.com/chemical/25134-21-8/ EPA CompTox (DSSTox): DTXSID6027844. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID6027844 PubChem: 32802. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/32802 EPA Chemical Data Reporting: 25134-21-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 25134-21-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting