1-formyl-2-phenylhydrazine

1-甲酸基-2-苯肼

Also known as: Formaldehyde, (2-phenylhydrazinyl)-, N-anilinoformamide, 2-phenylhydrazinecarboxaldehyde, N'-phenylformohydrazide, N'-Formyl-N-phenylhydrazine, Hydrazinecarboxaldehyde,2-phenyl, 1-Formyl-2-phenylhydrazine, 2-Formyl-1-phenylhydrazine, N'-phenylformic hydrazide, Fenylhydrazid kyseliny mravenci, AURORA KA-348, TIMTEC-BB SBB008261

1-formyl-2-phenylhydrazine (CAS 622-84-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H8N2O and a molecular weight of 136.15100 g/mol. It is also known as Formaldehyde, (2-phenylhydrazinyl)-, N-anilinoformamide and 2-phenylhydrazinecarboxaldehyde. Key properties include a melting point of 142-143ºC, a boiling point of 226.6ºC at 760 mmHg, a density of 1.183g/cm3 and a flash point of 103.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 622-84-4
Jingsj CID: J-35131-3
Molecular Formula: C₇H₈N₂O
Chinese Name: 1-甲酸基-2-苯肼
Molecular Weight: 136.15100 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	142-143ºC
Boiling Point	226.6ºC at 760 mmHg
Density	1.183g/cm3
Flash Point	103.1ºC

Frequently Asked Questions

What is the CAS number of 1-formyl-2-phenylhydrazine?

The CAS number of 1-formyl-2-phenylhydrazine is 622-84-4.

What are the molecular formula and molecular weight of 1-formyl-2-phenylhydrazine?

1-formyl-2-phenylhydrazine has molecular formula C7H8N2O and molecular weight 136.15100 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "1-formyl-2-phenylhydrazine (CAS 622-84-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35131-3 (accessed 2026-10-23).

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