1-Methylnaphthalene

CAS 90-12-0

U.S. production volumes are classified as confidential business information.

US productionCBI

Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.

Import value, 2024$68M

Top sourceIndia 35%

At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.

Why supply is unknown

Production is reported production, not a complete census of factories. US production volume is confidential. Production reporting year: 2023. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 290290 · basket

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production 1.9M lb · Imports Zero

These shares come from HS customs code 290290, which covers 171 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

Country of origin for US imports, from Census customs data (2024).

IN 35%IndiaTW 11%TaiwanES 10%SpainDE 10%GermanyCN 8%China

Czech Republic
Netherlands
Switzerland
Pakistan
United Kingdom
Austria
Denmark
Indonesia
Lithuania
Hong Kong
Finland

EPA-registered manufacturers (2)

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

Shell Plc · GB United Kingdom

Shell Petroleum

Why It Matters

Sectors

ConstructionCore 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 2 functional roles.

•Intermediate in Petrochemical Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Fuel in Services (90%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.10/gSigma-Aldrich (Rush Stock)

CountryGermany

Pack$506.80 / 5 kg

Purity95%

Vendors12 available

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

11 more vendors

Vendor	Country	$/g	Pack	Purity
Sigma-Aldrich	Germany	$0.10	5 kg	95%
Combi-Blocks, Inc.	United States	$0.25	1 kg	96%
Apollo Scientific UK	United Kingdom	$0.34	500 g	96%
ALFA AESAR	Germany	$0.35	100 g	96%
Aaron Chemicals LLC	Hong Kong	$0.81	500 g	70%
Angene Chemical	China → Hong Kong	$0.87	500 g	70%
A2B Chem LLC	United States	$1.23	500 g	80%
AA BLOCKS	United States	$1.61	500 g	80%
Labotest KG	Germany	$217.80	5000 mg	90%
Otava, Ltd. (2 weeks)	Ukraine	$2724.00	50 mg	90%
Angene	China → Hong Kong	$4266.67	30 mg	70%

Chemical Identity

CAS90-12-0

PubChem CID7002

DTXSIDDTXSID9020877

FormulaC11H10

Mol. Weight142.2 g/mol

SMILESCC1=CC=CC2=CC=CC=C12

Data Sources

EPA CompTox (DSSTox) · DTXSID9020877Retrieved 2026-04-06
PubChem · compound 7002Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

1-Methylnaphthalene (CAS 90-12-0) https://chemicalindependence.com/chemical/90-12-0/ EPA CompTox (DSSTox): DTXSID9020877. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID9020877 PubChem: 7002. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/7002 EPA Chemical Data Reporting: 90-12-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 90-12-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 290290 for CAS 90-12-0. Reporting year: 2024. https://usatrade.census.gov/