(S)-Methyl 2-amino-4-mercaptobutanoate CAS 104972-21-6

Purity 97%+In StockPharmaceutical Standards
CAS No.104972-21-6
Molecular FormulaC5H11NO2S
Molecular Weight149.21 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(S)-Methyl 2-amino-4-mercaptobutanoate CAS 104972-21-6 chemical structure

Description

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

(S)-Methyl 2-amino-4-mercaptobutanoate (CAS 104972-21-6) is a high-purity analytical reference standard with the molecular formula C5H11NO2S and a molecular weight of 149.21 g/mol.

Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, (S)-Methyl 2-amino-4-mercaptobutanoate is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 149.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

As a certified reference material (CRM), (S)-Methyl 2-amino-4-mercaptobutanoate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC5H11NO2S
Molecular Weight149.21 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)1.0
CAS Registry Year (est.)1986
Nitrogen Atoms1
Sulfur Atoms1

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