(αS)-α-Amino-4-hydroxy-3-iodobenzeneacetic acid

L-3-碘-4-羟基苯甘氨酸

Also known as: Levothyroxine sodium impurity H, (2S)-2-Amino-2-(4-hydroxy-3-iodophenyl)acetic acid, Benzeneacetic acid, α-amino-4-hydroxy-3-iodo-, (αS)-

(αS)-α-Amino-4-hydroxy-3-iodobenzeneacetic acid (CAS 1208237-78-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H8INO3 and a molecular weight of 293.059 g/mol. It is also known as Levothyroxine sodium impurity H, (2S)-2-Amino-2-(4-hydroxy-3-iodophenyl)acetic acid and Benzeneacetic acid, α-amino-4-hydroxy-3-iodo-, (αS)-. Key properties include a boiling point of 366.1±42.0 °C at 760 mmHg, a density of 2.1±0.1 g/cm3 and a flash point of 175.2±27.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1208237-78-8
Jingsj CID: J-1442924-6
Molecular Formula: C₈H₈INO₃
Chinese Name: L-3-碘-4-羟基苯甘氨酸
Molecular Weight: 293.059 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	366.1±42.0 °C at 760 mmHg
Density	2.1±0.1 g/cm3
Flash Point	175.2±27.9 °C

Frequently Asked Questions

What is the CAS number of (αS)-α-Amino-4-hydroxy-3-iodobenzeneacetic acid?

The CAS number of (αS)-α-Amino-4-hydroxy-3-iodobenzeneacetic acid is 1208237-78-8.

What are the molecular formula and molecular weight of (αS)-α-Amino-4-hydroxy-3-iodobenzeneacetic acid?

(αS)-α-Amino-4-hydroxy-3-iodobenzeneacetic acid has molecular formula C8H8INO3 and molecular weight 293.059 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. "(αS)-α-Amino-4-hydroxy-3-iodobenzeneacetic acid (CAS 1208237-78-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1442924-6 (accessed 2026-10-25).

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