7a-Ethyldihydro-1H,3H,5H-oxazolo(3,4-c)oxazole

CAS 7747-35-5

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

Molecular structure of 7747-35-5
US productionZero
Import value, 2024$6.4B
Import volume444.3K lb
Import dependency100%
Top sourceSingapore 36%

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.

7a-Ethyldihydro-1H,3H,5H-oxazolo(3,4-c)oxazole · US import value by year
$4.8B2013$9.8B2022$6.4B2024$9.2B2025

2013: $4.8B · Peak 2022: $9.8B · 2024: $6.4B · 2025: $9.2B

Where It Comes From

Customs basis: HS 293499 · basket

EPA reports by year
2019
US production Zero · Imports 444.3K lb

These shares come from HS customs code 293499, which covers 575 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
SG 36%SingaporeIE 23%IrelandCN 11%ChinaCH 6%SwitzerlandIN 5%India
EPA-registered importers (1)
Angus Chemical

Why It Matters

Sectors
ConstructionTextilesPaints & Coatings
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 3 sectors as 3 functional roles.

  • •Solvents (which become part of product formulation or mixture) in Paint and Coating Manufacturing (20%)Processing—incorporation into formulation, mixture, or reaction product
  • •Processing aids, specific to petroleum production in Textiles, apparel, and leather manufacturing (20%)Processing—incorporation into formulation, mixture, or reaction product
  • •Adhesives and sealant chemicals in Wood Product Manufacturing (50%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.38/gAaron Chemicals LLC
CountryHong Kong
Pack$192.00 / 500 g
Purity98%
Vendors12 available

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

Chemical Identity

CAS7747-35-5
PubChem CID82190
DTXSIDDTXSID3029289
FormulaC7H13NO2
Mol. Weight143.18 g/mol
SMILESCCC12COCN1COC2

Data Sources

Brief citations

7a-Ethyldihydro-1H,3H,5H-oxazolo(3,4-c)oxazole (CAS 7747-35-5) https://chemicalindependence.com/chemical/7747-35-5/ EPA CompTox (DSSTox): DTXSID3029289. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID3029289 PubChem: 82190. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/82190 EPA Chemical Data Reporting: 7747-35-5. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 7747-35-5. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293499 for CAS 7747-35-5. Reporting year: 2024. https://usatrade.census.gov/