H-Arg-Lys-OH CAS 40968-46-5

Purity 97%+In StockPharmaceutical Standards
CAS No.40968-46-5
Molecular FormulaC12H26N6O3
Molecular Weight302.37 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

H-Arg-Lys-OH CAS 40968-46-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 302.37 g/mol gives H-Arg-Lys-OH distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies H-Arg-Lys-OH (CAS 40968-46-5), a certified reference material (molecular formula C12H26N6O3, MW 302.37 g/mol) for analytical method development and quality control.

Structurally, H-Arg-Lys-OH (C12H26N6O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 302.37 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

As a certified reference material (CRM), H-Arg-Lys-OH 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 FormulaC12H26N6O3
Molecular Weight302.37 g/mol
AppearanceWhite to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1968
Nitrogen Atoms6

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