(2S)-2-[[(2S)-2-[[(2S)-2-amino-5-guanidino-pentanoyl]amino]-5-guanidino-pentanoyl]amino]-5-guanidino-pentanoic acid 26982-20-7 Poly-L-arginine CAS 26982-20-7

Purity 97%+In StockPharmaceutical Standards
CAS No.26982-20-7
Molecular FormulaC6H14N4O2
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(2S)-2-[[(2S)-2-[[(2S)-2-amino-5-guanidino-pentanoyl]amino]-5-guanidino-pentanoyl]amino]-5-guanidino-pentanoic acid 26982-20-7 Poly-L-arginine CAS 26982-20-7 chemical structure

Description

(2S)-2-[[(2S)-2-[[(2S)-2-amino-5-guanidino-pentanoyl]amino]-5-guanidino-pentanoyl]amino]-5-guanidino-pentanoic acid 26982-20-7 Poly-L-arginine (CAS 26982-20-7) is a high-purity analytical reference standard with the molecular formula C6H14N4O2HCl and a molecular weight of 210.66 g/mol.

Owing to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, (2S)-2-[[(2S)-2-[[(2S)-2-amino-5-guanidino-pentanoyl]amino]-5-guanidino-pentanoyl]amino]-5-guanidino-pentanoic acid 26982-20-7 Poly-L-arginine is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 210.66 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.

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

As a certified reference material (CRM), (2S)-2-[[(2S)-2-[[(2S)-2-amino-5-guanidino-pentanoyl]amino]-5-guanidino-pentanoyl]amino]-5-guanidino-pentanoic acid 26982-20-7 Poly-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 HCl
Molecular Weight210.66 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)1.0
CAS Registry Year (est.)1964
Halogen ContentCl-containing
Nitrogen Atoms4

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