L-Arginine CAS 74-79-3

Purity >95%In StockPharmaceutical Standards
CAS No.74-79-3
Molecular FormulaC6H14N4O2
Molecular Weight174.20 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

L-Arginine CAS 74-79-3 chemical structure

Description

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.

L-Arginine (CAS 74-79-3) is a high-purity analytical reference standard with the molecular formula C6H14N4O2 and a molecular weight of 174.20 g/mol.

Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, L-Arginine is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 174.20 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), L-Arginine 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 FormulaC6H14N4O2
Molecular Weight174.20 g/mol
Purity>95%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1957
Nitrogen Atoms4

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