monobenzone

Drug ingredient

CAS 103-16-2

This chemical is an active pharmaceutical ingredient used in FDA-regulated drugs.

US productionNot reported

Import value, 2024$34M

Top sourceIndia 45%

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 290950 · basket

These shares come from HS customs code 290950, which covers 36 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 45%IndiaIT 20%ItalyID 15%IndonesiaMG 5%MadagascarCN 5%China

Canada
United Kingdom
Spain
Netherlands
Denmark
Ukraine
Belgium

1 FDA-registered drug labeler

Darmerica

Why It Matters

Sectors

Health

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

Vendor Pricing

$0.18/gAaron Chemicals LLC

CountryHong Kong

Pack$18.00 / 100 g

Purity96%

Vendors35 available

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

34 more vendors

Vendor	Country	$/g	Pack	Purity
Angene Chemical	China → Hong Kong	$0.21	500 g	96%
A2B Chem LLC	United States	$0.22	500 g	96%
Combi-Blocks, Inc.	United States	$0.27	1 kg	98%
AA BLOCKS	United States	$0.27	500 g	96%
Chemscene	United States	$0.29	1 kg	—
AstaTech, Inc	United States	$0.30	100 g	95%
BLD Pharmatech Co., Limited	United States	$0.30	1 kg	98%
BLD Pharmatech GmbH	Germany	$0.30	1 kg	98%
BLD Pharmatech Ltd.	China	$0.30	1 kg	98%
Ambeed, Inc.	United States	$0.30	1 kg	98%
AK Scientific Specialized	United States	$0.36	500 g	95%
Fluorochem EU	Germany	$0.36	100 g	96%
AK Scientific, Inc.	United States	$0.49	500 g	98%
MedChemExpress MCE	Sweden	$0.50	500 g	99.98%
ALFA AESAR	Germany	$0.72	50 g	98%
Synthonix	United States	$0.76	25 g	95%
Angene International Limited	United States	$0.95	100 g	99%
Sigma-Aldrich (Rush Stock)	Germany	$1.24	100 g	98%
Sigma-Aldrich	Germany	$1.24	100 g	98%
Aldlab	United States	$1.24	10 g	95%
MedKoo Biosciences, Inc	United States	$1.60	500 g	98%
Fluorochem UK	United Kingdom	$7.15	1 g	96%
Labotest KG	Germany	$217.80	5000 mg	90%
Molnova	China	$285.00	200 mg	99%
Otava, Ltd.	Ukraine	$460.00	250 mg	90%
ChemNorm	China	$1450.00	20 mg	98%
ChemBridge Corporation	Kazakhstan	$1860.00	100 mg	90%
Apexbio Technology LLC	United States	$2000.00	50 mg	99.91%
Otava, Ltd. (2 weeks)	Ukraine	$2724.00	50 mg	90%
Princeton BioMolecular Research (SC)	United States	$2900.00	100 mg	90%
Vitas M Chemical Limited	Hong Kong	$3170.00	100 mg	90%
Angene	China → Hong Kong	$4266.67	30 mg	96%
Key Organics Ltd.	United Kingdom	$6900.00	10 mg	95%
TimTec, LLC (back-ordered)	United States	$32000.00	15 mg	94%

Chemical Identity

CAS103-16-2

PubChem CID7638

DTXSIDDTXSID2020717

FormulaC13H12O2

Mol. Weight200.23 g/mol

SMILESC1=CC=C(C=C1)COC2=CC=C(C=C2)O

Data Sources

PubChem · compound 7638Retrieved 2026-04-07
EPA TSCA InventoryRetrieved 2026-04-24
FDA National Drug Code directoryRetrieved 2026-04-07
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

monobenzone (CAS 103-16-2) https://chemicalindependence.com/chemical/103-16-2/ PubChem: 7638. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/7638 EPA TSCA Inventory: CAS 103-16-2. Retrieved 2026-04-24. https://www.epa.gov/tsca-inventory FDA National Drug Code directory: bulk match. Retrieved 2026-04-07. https://open.fda.gov/data/ndc/ US Census international trade: HS 290950 for CAS 103-16-2. Reporting year: 2024. https://usatrade.census.gov/