CAS reference

Nitrogen

氮气

Inert compressed gas. Like oxygen, near-zero international trade because shipping cost dwarfs gas cost. Specialty research-grade and electronics-grade trade exists for ultra-high-purity nitrogen.

CAS 7727-37-9 ·N2 ·MW 28.014 g/mol ·HS 280430

Identifiers

Synonyms
Molecular nitrogen, Dinitrogen, N2
Formula
N2
Molecular weight
28.014 g/mol
SMILES
N#N
InChIKey
IJGRMHOSHXDMSA-UHFFFAOYSA-N
HS code (6-digit)
280430

Transport and hazard profile

Transport classification, UN number UN1066, IMDG Class 2.2.

GHS hazard statements, Warning. H-codes, H280. Refer to the substance SDS Section 2 for the full classification.

Regulatory profile across 5 jurisdictions

Verified against ECHA, US EPA TSCA Inventory, MEE China IECSC, NIER K-REACH, and AICIS AIIC. Last verification 2026-04-30. Confirm with the regulator portal before any shipping decision.

EU REACH
Listed
US TSCA
Listed
China IECSC
Listed
Korea K-REACH
Listed
Australia AICIS
Listed

Look up other substances at the REACH / TSCA cross-jurisdiction checker.

Common applications

  • · Inert blanketing (chemical reactors, food packaging)
  • · Cryogenic freezing (liquid N2)
  • · Semiconductor manufacturing
  • · Tyre inflation

Sourcing documentation chain

Every shipment of Nitrogen from China should include a per-batch COA, a current SDS per GB/T 17519 on the China side and the destination jurisdiction's standard on the import side, a packing list, a bill of lading, and a certificate of origin plus an MSA China DG packing certificate. For Incoterms reference see FOB, CIF, and CFR.

Sourcing Nitrogen?

Send us the spec.

Our Shanghai team handles the documentation chain for Nitrogen exports out of China. Factory selection, COA verification, DG declaration if applicable, and the duty stack quantified before you commit a deposit.

Request a Quote

Read next

Where this substance shows up across Sourzi

Referenced in

5 pages across the Sourzi moat

This term shows up in 5 regulatory pages. Sample backlinks per content type below.

Regulatory (5)

Plus 2 more regulatory pages.

Free download

Free PDF: the MSDS verification template Sourzi runs against the supplier sheet for every CAS number we book out of China.