2-Phenylethylamine hydrochloride

Also known as: β-Phenylethylamine hydrochloride, Phenethylamine hydrochloride, 2-Phenylethanamine hydrochloride, Benzeneethanamine, hydrochloride (1:1), 2-Phenylethanaminium chloride

2-Phenylethylamine hydrochloride (CAS 156-28-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H12ClN and a molecular weight of 157.641 g/mol. Key properties include a melting point of 220-222 °C(lit.), a boiling point of 196.5ºC at 760 mmHg and a flash point of 90.6ºC. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 156-28-5
Jingsj CID: J-39212-1
Molecular Formula: C₈H₁₂ClN
Molecular Weight: 157.641 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	220-222 °C(lit.)
Boiling Point	196.5ºC at 760 mmHg
Flash Point	90.6ºC
Exact Mass	157.065826
PSA	26.02000
LogP	2.69010
Vapor Pressure	0.398mmHg at 25°C

GHS Safety & Compliance

IrritantSignal word: Warning

H302 — Harmful if swallowed
H315 — Causes skin irritation
H319 — Causes serious eye irritation
H335 — May cause respiratory irritation

Activity & Biological Data

Additional Information	[1]. O'Reilly RL, et al. Phenylethylamine and schizophrenia. Prog Neuropsychopharmacol Biol Psychiatry. 1994 Jan;18(1):63-75. [2]. Potkin SG, et al. Phenylethylamine (PEA) and phenylacetic acid (PAA) in the urine of chronic schizophrenic patients and controls. Psychopharmacol Bull. 1980 Jan;16(1):52-4. [3]. Kusaga A, et al. Increased urine phenylethylamine after methylphenidate treatment in children with ADHD. Ann Neurol. 2002 Sep;52(3):372-4.

Additional Information

[1]. O'Reilly RL, et al. Phenylethylamine and schizophrenia. Prog Neuropsychopharmacol Biol Psychiatry. 1994 Jan;18(1):63-75. [2]. Potkin SG, et al. Phenylethylamine (PEA) and phenylacetic acid (PAA) in the urine of chronic schizophrenic patients and controls. Psychopharmacol Bull. 1980 Jan;16(1):52-4. [3]. Kusaga A, et al. Increased urine phenylethylamine after methylphenidate treatment in children with ADHD. Ann Neurol. 2002 Sep;52(3):372-4.

Customs & Trade Information

HS Code	2921499090
Summary	2921499090 other aromatic monoamines and their derivatives; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2-Phenylethylamine hydrochloride?

The CAS number of 2-Phenylethylamine hydrochloride is 156-28-5.

What are the molecular formula and molecular weight of 2-Phenylethylamine hydrochloride?

2-Phenylethylamine hydrochloride has molecular formula C8H12ClN and molecular weight 157.641 g/mol.

Is 2-Phenylethylamine hydrochloride hazardous?

2-Phenylethylamine hydrochloride has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.

What are the upstream and downstream products of 2-Phenylethylamine hydrochloride?

For 2-Phenylethylamine hydrochloride, Upstream Products: N-(2-Phenylethyl)acetamide, 3-Phenylpropanamide, (2-Bromoethyl)benzene; Downstream Products: 2-(1,2,3,4-tetrahydroisoquinolin-1-yl)acetonitrile, N-Phenethylbenzamide, benzoic acid.

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-Phenylethylamine hydrochloride (CAS 156-28-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-39212-1 (accessed 2026-11-09).

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