Bis(1-methylheptyl) phthalate

CAS 131-15-7

1,2-Benzenedicarboxylic acid, 1,2-bis(1-methylheptyl) ester

Molecular structure of 131-15-7
US productionNot reported
Import value, 2024$11M
Top sourceSouth Korea 41%

This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.

Why supply is unknown

Production is reported production, not a complete census of factories. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 291732 · narrow

These shares come from HS customs code 291732, which covers 4 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
KR 41%South KoreaMX 24%MexicoCO 23%ColombiaCL 4%ChilePT 3%Portugal

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Vendor Pricing

$32.70/gAaron Chemicals LLC
CountryHong Kong
Pack$3270.00 / 100 g
Purity98%
Vendors7 available

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

Chemical Identity

CAS131-15-7
PubChem CIDNot recorded
DTXSIDDTXSID0051655
FormulaC24H38O4
Mol. Weight390.564 g/mol
SMILESCCCCCCC(C)OC(=O)C1=CC=CC=C1C(=O)OC(C)CCCCCC

Data Sources

Brief citations

Bis(1-methylheptyl) phthalate (CAS 131-15-7) https://chemicalindependence.com/chemical/131-15-7/ EPA TSCA Inventory: CAS 131-15-7. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 291732 for CAS 131-15-7. Reporting year: 2024. https://usatrade.census.gov/