1-Methyl-3-phenylpiperazine

1-甲基-3-苯基哌嗪

Also known as: N-METHYL-3-PHENYLPIPERAZINE, 1-N-METHYL-3-PHENYL-PIPERAZINE, EINECS 243-119-5, Mirtazapine intermediate

1-Methyl-3-phenylpiperazine (CAS 19509-11-6) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C11H16N2 and a molecular weight of 176.25800 g/mol. It is also known as N-METHYL-3-PHENYLPIPERAZINE, 1-N-METHYL-3-PHENYL-PIPERAZINE and EINECS 243-119-5. Key properties include a melting point of 56-60ºC(lit.), a boiling point of 256.4ºC at 760mmHg, a density of 0.964g/cm3 and a flash point of 99.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 19509-11-6
Jingsj CID: J-1411685-6
Molecular Formula: C₁₁H₁₆N₂
Chinese Name: 1-甲基-3-苯基哌嗪
Molecular Weight: 176.25800 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	56-60ºC(lit.)
Boiling Point	256.4ºC at 760mmHg
Density	0.964g/cm3
Flash Point	99.5ºC

Frequently Asked Questions

What is the CAS number of 1-Methyl-3-phenylpiperazine?

The CAS number of 1-Methyl-3-phenylpiperazine is 19509-11-6.

What are the molecular formula and molecular weight of 1-Methyl-3-phenylpiperazine?

1-Methyl-3-phenylpiperazine has molecular formula C11H16N2 and molecular weight 176.25800 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-Methyl-3-phenylpiperazine (CAS 19509-11-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1411685-6 (accessed 2026-10-25).

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