4-Sulfophenylmethallyl ether

CAS 1208-67-9

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

Molecular structure of 1208-67-9 — 1 Na⁺

US productionCBI

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

Import value, 2024$59M

Top sourceChina 51%

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 290930 · basket

EPA reports by year

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

These shares come from HS customs code 290930, which covers 119 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).

CN 51%ChinaIN 23%IndiaIT 12%ItalyJP 9%JapanCA 2%Canada

Spain
Israel
Netherlands
Taiwan
Germany
Ireland
Switzerland
Ukraine
Mexico
United Kingdom
Australia

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

•CBI in CBICBI

Chemical Identity

CAS1208-67-9

PubChem CID23677970

DTXSIDDTXSID9061625

FormulaC10H11NaO4S

Mol. Weight250.25 g/mol

SMILESCC(=C)COC1=CC=C(C=C1)S(=O)(=O)[O-].[Na+]

Data Sources

EPA CompTox (DSSTox) · DTXSID9061625Retrieved 2026-04-06
PubChem · compound 23677970Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

4-Sulfophenylmethallyl ether (CAS 1208-67-9) https://chemicalindependence.com/chemical/1208-67-9/ EPA CompTox (DSSTox): DTXSID9061625. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID9061625 PubChem: 23677970. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/23677970 EPA Chemical Data Reporting: 1208-67-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 1208-67-9. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 290930 for CAS 1208-67-9. Reporting year: 2024. https://usatrade.census.gov/