1,1'-Disulfanediyldiazepan-2-one

CAS 23847-08-7

EPA’s 2023 records show zero U.S. production of this chemical.

US productionZero

Import value, 2024$907M

Import volumeCBI

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

Top sourceIreland 47%

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. 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 293379 · basket

EPA reports by year

2023: US production Zero · Imports Confidential
2019: US production Zero · Imports 66.6K lb

These shares come from HS customs code 293379, which covers 105 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).

IE 47%IrelandBE 19%BelgiumSG 11%SingaporeIT 4%ItalyCH 4%Switzerland

Brazil
Canada
Taiwan
Ukraine
Portugal
Netherlands
South Korea
Israel
Czech Republic
Spain
Finland
Hungary
Malaysia
Australia
Austria
Slovenia

EPA-registered importers (1)

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

Lanxess

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

Vendor Pricing

$0.58/gCombi-Blocks, Inc.

CountryUnited States

Pack$290.00 / 500 g

Purity95%

Vendors15 available

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

14 more vendors

Vendor	Country	$/g	Pack	Purity
Aaron Chemicals LLC	Hong Kong	$0.70	500 g	98%
Chemscene	United States	$0.73	500 g	—
Angene Chemical	China → Hong Kong	$0.75	500 g	98%
A2B Chem LLC	United States	$0.78	100 g	98%
MedChemExpress MCE	Sweden	$0.91	500 g	—
AA BLOCKS	United States	$0.95	100 g	98%
Fluorochem EU	Germany	$1.37	100 g	98%
AstaTech (2 weeks)	United States	$3.08	25 g	95%
Otava, Ltd.	Ukraine	$2724.00	50 mg	95%
Angene	China → Hong Kong	$4266.67	30 mg	98%
Interbioscreen	Hong Kong	$4864.50	100 mg	95%
Princeton BioMolecular Research (SC)	United States	$5000.00	30 mg	90%
Vitas M Chemical Limited	Hong Kong	$5133.33	30 mg	90%
Life Chemicals Inc.	Ukraine → Canada	$5400.00	25 mg	90%

Chemical Identity

CAS23847-08-7

PubChem CID90282

DTXSIDDTXSID1044481

FormulaC12H20N2O2S2

Mol. Weight288.4 g/mol

SMILESC1CCC(=O)N(CC1)SSN2CCCCCC2=O

Data Sources

EPA CompTox (DSSTox) · DTXSID1044481Retrieved 2026-04-06
PubChem · compound 90282Retrieved 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

1,1'-Disulfanediyldiazepan-2-one (CAS 23847-08-7) https://chemicalindependence.com/chemical/23847-08-7/ EPA CompTox (DSSTox): DTXSID1044481. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID1044481 PubChem: 90282. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/90282 EPA Chemical Data Reporting: 23847-08-7. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 23847-08-7. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293379 for CAS 23847-08-7. Reporting year: 2024. https://usatrade.census.gov/