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2-(Dihydrazinylmethylidene)hydrazin-1-ium nitrate

CAS 4000-16-2

Carbonohydrazonic dihydrazide, nitrate (1:1)

Molecular structure of 4000-16-2
US productionNot reported
Import value, 2024$191M
Top sourceSwitzerland 35%

This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.

Why supply is unknown

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

Where It Comes From

Customs basis: HS 292800 · basket

These shares come from HS customs code 292800, which covers 112 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CH 35%SwitzerlandIT 28%ItalyCN 12%ChinaIN 6%IndiaJP 6%Japan

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Chemical Identity

CAS4000-16-2
PubChem CIDNot recorded
DTXSIDDTXSID90960482
FormulaCH9N7O3
Mol. Weight167.129 g/mol
SMILES[O-]N(=O)=O.NNC(NN)=N[NH3+]

Data Sources

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Brief citations

2-(Dihydrazinylmethylidene)hydrazin-1-ium nitrate (CAS 4000-16-2) https://chemicalindependence.com/chemical/4000-16-2/ EPA TSCA Inventory: CAS 4000-16-2. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 292800 for CAS 4000-16-2. Reporting year: 2024. https://usatrade.census.gov/