1,1'-[2,15-Dibenzyl-3,14-bis(sulfanylidene)-4,5,12,13-tetrathia-2,15-diazahexadecane-1,16-diyl]dibenzene

CAS 151900-44-6

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

US productionZero

Import value, 2024$760M

Import volumeCBI

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

Top sourceChina 33%

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 293090 · basket

EPA reports by year

2023: US production Zero · Imports Confidential
2019: US production Zero · Imports 137.1K lb

These shares come from HS customs code 293090, which covers 418 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 33%ChinaES 14%SpainCH 9%SwitzerlandIT 7%ItalyIN 7%India

Israel
Croatia
Ukraine
Slovakia
United Arab Emirates
Ireland
Poland
Lithuania
Brazil
Singapore
Australia
Armenia
Hong Kong
Vietnam
Czech Republic
Hungary
Greece
Russia

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

Chemical Identity

CAS151900-44-6

PubChem CID22058848

DTXSIDDTXSID10934367

FormulaC36H40N2S6

Mol. Weight693.1 g/mol

SMILESC1=CC=C(C=C1)CN(CC2=CC=CC=C2)C(=S)SSCCCCCCSSC(=S)N(CC3=CC=CC=C3)CC4=CC=CC=C4

Data Sources

EPA CompTox (DSSTox) · DTXSID10934367Retrieved 2026-04-06
PubChem · compound 22058848Retrieved 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'-[2,15-Dibenzyl-3,14-bis(sulfanylidene)-4,5,12,13-tetrathia-2,15-diazahexadecane-1,16-diyl]dibenzene (CAS 151900-44-6) https://chemicalindependence.com/chemical/151900-44-6/ EPA CompTox (DSSTox): DTXSID10934367. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID10934367 PubChem: 22058848. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/22058848 EPA Chemical Data Reporting: 151900-44-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 151900-44-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293090 for CAS 151900-44-6. Reporting year: 2024. https://usatrade.census.gov/