ECCN 3C003

NSAT

Organo-inorganic compounds as follows .

Category: 3 - ElectronicsProduct Group: C - MaterialsLast Updated: 2026-04-10

What This ECCN Covers

ECCN 3C003 controls organo-inorganic compounds — for example high-purity organo-arsenic, organo-antimony, and organo-phosphorus compounds — meeting the purity criteria in the entry. These metalorganic precursors feed compound-semiconductor epitaxial growth (MOCVD) and are controlled for National Security and Anti-Terrorism reasons.

Who needs to check this?

Electronic-materials and specialty-chemical suppliers exporting MOCVD precursors and high-purity organometallic compounds.

Compliance tip

Control turns on the inorganic-element purity defined in the entry — confirm your compound meets that purity, since lower-purity material may fall outside. Check the NS and AT Country Chart columns; related substrates and equipment are controlled under separate Category 3 entries.

Reviewed by Jack Tan · Last reviewed: Jun 4, 2026

Items Covered

  • b.Organo-arsenic, organo-antimony and organo-phosphorus compounds, having a purity (inorganic element basis) better than 99.999%.

Control Reasons

NSNational Security

Items controlled for national security reasons under multilateral export control regimes.

Column 1: YesColumn 2: No
ATAnti-Terrorism

Items controlled for anti-terrorism reasons. Most items on the CCL have AT controls.

Column 1: YesColumn 2: No

Disclaimer

This information is for reference only. For official classifications, consult BIS or a qualified export control professional.

Official Reference