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(2S,3R)-3-Amino-2-hydroxy-4-phenylbutanoic acid hydrochloride

Also known as: (2S,3R)-3-Amino-2-hydroxy-4-phenylbutyric acid hydrochloride, (2S,3R)-AHPA, Benzenebutanoic acid, β-amino-α-hydroxy-, hydrochloride (1:1), (αS,βR)-, (2S,3R)-3-Amino-2-hydroxy-4-phenylbutanoic acid hydrochloride

(2S,3R)-3-Amino-2-hydroxy-4-phenylbutanoic acid hydrochloride (CAS 128223-55-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H14ClNO3 and a molecular weight of 231.67600 g/mol. Key properties include a boiling point of 428.5ºC at 760mmHg and a flash point of 213ºC. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
128223-55-2
Jingsj CID
J-1501866-3
Molecular Formula
C10H14ClNO3
Molecular Weight
231.67600 g/mol
Category
Organic Acids
Last updated
8/21/2026
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Physicochemical Properties

Boiling Point428.5ºC at 760mmHg
Flash Point213ºC
Exact Mass231.06600
PSA83.55000
LogP1.50420
Vapor Pressure4.17E-08mmHg at 25°C
Storage Conditions−20°C

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Frequently Asked Questions

What is the CAS number of (2S,3R)-3-Amino-2-hydroxy-4-phenylbutanoic acid hydrochloride?

The CAS number of (2S,3R)-3-Amino-2-hydroxy-4-phenylbutanoic acid hydrochloride is 128223-55-2.

What are the molecular formula and molecular weight of (2S,3R)-3-Amino-2-hydroxy-4-phenylbutanoic acid hydrochloride?

(2S,3R)-3-Amino-2-hydroxy-4-phenylbutanoic acid hydrochloride has molecular formula C10H14ClNO3 and molecular weight 231.67600 g/mol.

Is (2S,3R)-3-Amino-2-hydroxy-4-phenylbutanoic acid hydrochloride hazardous?

(2S,3R)-3-Amino-2-hydroxy-4-phenylbutanoic acid hydrochloride has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of (2S,3R)-3-Amino-2-hydroxy-4-phenylbutanoic acid hydrochloride?

For (2S,3R)-3-Amino-2-hydroxy-4-phenylbutanoic acid hydrochloride, Upstream Products: Methyl (2S)-2-hydroxy-2-phenylacetate.

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

Last updated:

How to cite: Jingsj. "(2S,3R)-3-Amino-2-hydroxy-4-phenylbutanoic acid hydrochloride (CAS 128223-55-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1501866-3 (accessed 2026-11-09).

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