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2-Pyridinecarboxaldehyde 4-nitrophenylhydrazone

吡啶-2-甲醛4-硝基苯基腙

Also known as: Pyridine-2-carboxaldehyde 4-nitrophenylhydrazone, 2-Pyridinecarbaldehyde (4-nitrophenyl)hydrazone, 2-Pyridinecarbaldehyde (p-nitrophenyl)hydrazone, Picolinaldehyde 4-nitrophenylhydrazone, 4-nitro-N-[(E)-pyridin-2-ylmethylideneamino]aniline, MFCD00012100, NSC-151874

2-Pyridinecarboxaldehyde 4-nitrophenylhydrazone (CAS 70421-66-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C12H10N4O2 and a molecular weight of 242.23300 g/mol. It is also known as Pyridine-2-carboxaldehyde 4-nitrophenylhydrazone, 2-Pyridinecarbaldehyde (4-nitrophenyl)hydrazone and 2-Pyridinecarbaldehyde (p-nitrophenyl)hydrazone. Key properties include a melting point of 256-259ºC, a boiling point of 436.3ºC at 760 mmHg, a density of 1.28g/cm3 and a flash point of 217.7ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
70421-66-8
Jingsj CID
J-30822-5
Molecular Formula
C12H10N4O2
Chinese Name
吡啶-2-甲醛4-硝基苯基腙
Molecular Weight
242.23300 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point256-259ºC
Boiling Point436.3ºC at 760 mmHg
Density1.28g/cm3
Flash Point217.7ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 2-Pyridinecarboxaldehyde 4-nitrophenylhydrazone?

The CAS number of 2-Pyridinecarboxaldehyde 4-nitrophenylhydrazone is 70421-66-8.

What are the molecular formula and molecular weight of 2-Pyridinecarboxaldehyde 4-nitrophenylhydrazone?

2-Pyridinecarboxaldehyde 4-nitrophenylhydrazone has molecular formula C12H10N4O2 and molecular weight 242.23300 g/mol.

Is 2-Pyridinecarboxaldehyde 4-nitrophenylhydrazone hazardous?

2-Pyridinecarboxaldehyde 4-nitrophenylhydrazone has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "2-Pyridinecarboxaldehyde 4-nitrophenylhydrazone (CAS 70421-66-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-30822-5 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.