2-Amino-5-phenylpyridine

Also known as: 5-Phenylpyridin-2-amine, 5-Phenyl-2-pyridinamine, 5-Phenyl-2-aminopyridine, 5-Phenyl-pyridin-2-ylamine, 2-Pyridinamine,5-phenyl, MFCD01692452

2-Amino-5-phenylpyridine (CAS 33421-40-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H10N2 and a molecular weight of 170.21000 g/mol. Key properties include a melting point of 132 °C, a boiling point of 323.6ºC at 760mmHg, a density of 1.133g/cm3 and a flash point of 175.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 33421-40-8
Jingsj CID: J-1519348-3
Molecular Formula: C₁₁H₁₀N₂
Molecular Weight: 170.21000 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	132 °C
Boiling Point	323.6ºC at 760mmHg
Density	1.133g/cm3
Flash Point	175.6ºC
Exact Mass	170.08400
PSA	38.91000
LogP	2.91200
Refractive Index	1.625

Activity & Biological Data

Additional Information	[1]. Dooley KL, et al. Comparative carcinogenicity of the food pyrolysis product, 2-amino-5-phenylpyridine, and the known human carcinogen, 4-aminobiphenyl, in the neonatal B6C3F1 mouse. Cancer Lett. 1988 Jul;41(1):99-103. [2]. Stavenuiter JF, et al. Syntheses of 5-phenyl-2-pyridinamine, a possibly carcinogenic pyrolysis product of phenylalanine, and some of its putative metabolites. Carcinogenesis. 1985 Jan;6(1):13-9.

Additional Information

[1]. Dooley KL, et al. Comparative carcinogenicity of the food pyrolysis product, 2-amino-5-phenylpyridine, and the known human carcinogen, 4-aminobiphenyl, in the neonatal B6C3F1 mouse. Cancer Lett. 1988 Jul;41(1):99-103. [2]. Stavenuiter JF, et al. Syntheses of 5-phenyl-2-pyridinamine, a possibly carcinogenic pyrolysis product of phenylalanine, and some of its putative metabolites. Carcinogenesis. 1985 Jan;6(1):13-9.

Frequently Asked Questions

What is the CAS number of 2-Amino-5-phenylpyridine?

The CAS number of 2-Amino-5-phenylpyridine is 33421-40-8.

What are the molecular formula and molecular weight of 2-Amino-5-phenylpyridine?

2-Amino-5-phenylpyridine has molecular formula C11H10N2 and molecular weight 170.21000 g/mol.

What are the upstream and downstream products of 2-Amino-5-phenylpyridine?

For 2-Amino-5-phenylpyridine, Upstream Products: 2-Amino-5-bromopyridine, Phenylboronic acid, 2-Amino-5-iodopyridine; Downstream Products: 2-Bromo-5-phenylpyridine, 3-Bromo-5-phenylpyridin-2-amine, 2-Amino-1-methyl-6-phenylimidazo[4,5-b]pyridine.

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

Last updated: 8/21/2026

How to cite: Jingsj. "2-Amino-5-phenylpyridine (CAS 33421-40-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1519348-3 (accessed 2026-11-09).

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