4-Mercaptobutyric acid CAS 13095-73-3

Purity 97%+In StockPharmaceutical Standards
CAS No.13095-73-3
Molecular FormulaC4H8O2S
Molecular Weight120.17 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Mercaptobutyric acid CAS 13095-73-3 chemical structure

Description

The occurrence of 4-Mercaptobutyric acid is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 4-Mercaptobutyric acid (CAS 13095-73-3), a certified reference material (molecular formula C4H8O2S, MW 120.17 g/mol) for analytical method development and quality control.

Structurally, 4-Mercaptobutyric acid (C4H8O2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 1.0, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 120.17 g/mol, it falls into the low-molecular-weight range.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC4H8O2S
Molecular Weight120.17 g/mol
Purity97%+
StorageStore at 2-8°C
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)1.0
CAS Registry Year (est.)1960
Sulfur Atoms1

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