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2,4-Dihydro-4-[(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)methylene]-5-methyl-2-phenyl-3H-pyrazol-3-one

CAS 4174-09-8

Companies reported imports and no US production of this chemical to EPA for 2019.

Molecular structure of 4174-09-8
US productionZero
Import value, 2024$1.4B
Import volume2.2K lb
Import dependency100%
Top sourceIreland 33%

Production is reported production, not a complete census of factories. Production reporting year: 2019. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

2,4-Dihydro-4-[(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)methylene]-5-methyl-2-phenyl-3H-pyrazol-3-one · US import value by year
$4.7B2013$1.4B2024$1.4B2025

Peak 2013: $4.7B · 2024: $1.4B · 2025: $1.4B

Where It Comes From

Customs basis: HS 293399 · basket

EPA reports by year
2019
US production Zero · Imports 2.2K lb

These shares come from HS customs code 293399, which covers 518 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
IE 33%IrelandCN 26%ChinaIN 11%IndiaDE 9%GermanyIT 4%Italy
EPA-registered importers (2)
Dai Nippon Printing · JP Japan
Dnp Imagingcomm America

Why It Matters

Sectors
Paper & Printing
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

  • •Dye in Printing and Related Support ActivitiesProcessing—incorporation into article

Chemical Identity

CAS4174-09-8
PubChem CID85930
DTXSIDDTXSID8063333
FormulaC21H18N4O2
Mol. Weight358.4 g/mol
SMILESCC1=C(C(=O)N(N1)C2=CC=CC=C2)C=C3C(=NN(C3=O)C4=CC=CC=C4)C

Data Sources

← Back to Dashboard← Back to Paper & Printing

Brief citations

2,4-Dihydro-4-[(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)methylene]-5-methyl-2-phenyl-3H-pyrazol-3-one (CAS 4174-09-8) https://chemicalindependence.com/chemical/4174-09-8/ EPA CompTox (DSSTox): DTXSID8063333. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID8063333 PubChem: 85930. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/85930 EPA Chemical Data Reporting: 4174-09-8. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 4174-09-8. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293399 for CAS 4174-09-8. Reporting year: 2024. https://usatrade.census.gov/