4-(Butan-2-yl)phenol

CAS 99-71-8

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$33M

Top sourceGermany 29%

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 290719 · basket

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production Confidential · Imports Zero

These shares come from HS customs code 290719, which covers 116 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).

DE 29%GermanyIN 26%IndiaCN 19%ChinaIT 9%ItalyCH 5%Switzerland

Mexico
Poland
South Korea
Canada
Russia
Ukraine
Hong Kong
Malaysia
United Kingdom

Domestic parents -- activity not disclosed (1)

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

Si Group

Why It Matters

Sectors

Plastics & Rubber

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 1 sector as 2 functional roles.

•Intermediate in Plastics Material and Resin Manufacturing (100%)Processing as a reactant
•Monomers in Plastics Material and Resin Manufacturing (100%)Processing as a reactant

Vendor Pricing

$0.39/gAA BLOCKS

CountryUnited States

Pack$39.00 / 100 g

Purity98%

Vendors12 available

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

11 more vendors

Vendor	Country	$/g	Pack	Purity
Aaron Chemicals LLC	Hong Kong	$1.20	25 g	98%
A2B Chem LLC	United States	$1.20	25 g	95%
Angene Chemical	China → Hong Kong	$1.28	25 g	98%
Combi-Blocks, Inc.	United States	$1.35	100 g	95%
AK Scientific Specialized	United States	$1.68	25 g	95%
AstaTech (2 weeks)	United States	$1.76	25 g	95%
AK Scientific, Inc.	United States	$3.48	25 g	98%
Angene International Limited	United States	$6.76	25 g	98%
Labotest KG	Germany	$453.00	1000 mg	90%
TargetMol Chemicals	China → United States	$840.00	100 mg	99.91%
Angene	China → Hong Kong	$4266.67	30 mg	98%

Chemical Identity

CAS99-71-8

PubChem CID7453

DTXSIDDTXSID7022332

FormulaC10H14O

Mol. Weight150.22 g/mol

SMILESCCC(C)C1=CC=C(C=C1)O

Data Sources

EPA CompTox (DSSTox) · DTXSID7022332Retrieved 2026-04-06
PubChem · compound 7453Retrieved 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

4-(Butan-2-yl)phenol (CAS 99-71-8) https://chemicalindependence.com/chemical/99-71-8/ EPA CompTox (DSSTox): DTXSID7022332. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID7022332 PubChem: 7453. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/7453 EPA Chemical Data Reporting: 99-71-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 99-71-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 290719 for CAS 99-71-8. Reporting year: 2024. https://usatrade.census.gov/