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2-Nitroacetaldehyde oxime

Also known as: methazonic acid, 2-Nitroacetaldehyde oxime, (NE)-N-(2-nitroethylidene)hydroxylamine, Acetaldehyde, 2-nitro-, oxime, Acetaldehyde, nitro-, oxime, Methazoic acid, Methazonsaeure, Nitroacetaldehyde oxime, nitroacetaldoxime, metazonic acid

2-Nitroacetaldehyde oxime (CAS 5653-21-4) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C2H4N2O3 and a molecular weight of 104.06500 g/mol. Key properties include a boiling point of 265.772ºC at 760 mmHg, a density of 1.453g/cm3 and a flash point of 114.535ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5653-21-4
Jingsj CID
J-1338268-8
Molecular Formula
C2H4N2O3
Molecular Weight
104.06500 g/mol
Category
Organic Compounds
Last updated
8/21/2026
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Physicochemical Properties

Boiling Point265.772ºC at 760 mmHg
Density1.453g/cm3
Flash Point114.535ºC
Exact Mass104.02200
PSA78.41000
LogP0.24630
Refractive Index1.507

Customs & Trade Information

HS Code2928000090
Summary2928000090 other organic derivatives of hydrazine or of hydroxylamine VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 2-Nitroacetaldehyde oxime?

The CAS number of 2-Nitroacetaldehyde oxime is 5653-21-4.

What are the molecular formula and molecular weight of 2-Nitroacetaldehyde oxime?

2-Nitroacetaldehyde oxime has molecular formula C2H4N2O3 and molecular weight 104.06500 g/mol.

What are the upstream and downstream products of 2-Nitroacetaldehyde oxime?

For 2-Nitroacetaldehyde oxime, Upstream Products: 2-Nitroacetamide; Downstream Products: Hydroxylamine, Formic Acid, Carbonic acid.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "2-Nitroacetaldehyde oxime (CAS 5653-21-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1338268-8 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.