3,3'-Dimethyl-4,4'-diphenylene diisocyanate

No U.S. production. America imports the entire domestic supply.

Molecular structure of 91-97-4
US ProductionZero
Import Value$171M
Import Volume14.2K lbs
Import Dependency100%
Top SourceHungary 35%
3,3'-Dimethyl-4,4'-diphenylene diisocyanate · US import value by year
$93M2013$99M2025

Where It Comes From

Customs basis: HS 292910 · basket

These shares come from HS customs code 292910, which covers 22 chemicals in total. They estimate the bucket's origin mix, not this chemical specifically.

Source Countries
HU 35%HungaryDE 20%GermanyIT 15%ItalyCN 8%ChinaES 7%Spain

Why It Matters

Sectors
Plastics & Rubber
Downstream UsesNo data available
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 1 sector as 1 functional role.

  • Adhesives and sealant chemicals in Rubber Product Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.15/gAaron Chemicals LLC
CountryHong Kong
Pack$74.00 / 500 g
Purity98%
Vendors9 available

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

8 more vendors
VendorCountry$/gPackPurity
Angene ChemicalChina Hong Kong$0.16500 g98%
A2B Chem LLCUnited States$0.47100 g98%
AA BLOCKSUnited States$0.58100 g98%
AstaTech (2 weeks)United States$2.14250 g95%
AK Scientific SpecializedUnited States$3.71100 g95%
AK Scientific, Inc.United States$5.02100 g98%
Angene International LimitedUnited States$8.06100 g98%
AngeneChina Hong Kong$4266.6730 mg98%

Chemical Identity

CAS91-97-4
PubChem CID7072
DTXSIDDTXSID7041463
FormulaC16H12N2O2
Mol. Weight264.28 g/mol
SMILESCC1=C(C=CC(=C1)C2=CC(=C(C=C2)N=C=O)C)N=C=O

Data Sources

DTXSID70414632026-04-06

https://doi.org/10.23645/epacomptox.5588566

Archive: data/sources/comptox/dsstox_identifiers.csv

70722026-04-06

https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/7072/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON

Archive: data/sources/pubchem_properties/7072.json

91-97-42026-04-24

https://www.epa.gov/chemical-data-reporting

Archive: data/sources/epa_cdr/2020_cdr.csv

CAS 91-97-42026-04-25

https://www.epa.gov/chemical-data-reporting

Archive: data/sources/epa_cdr/2020_cdr_industrial.csv