[Met5,Arg6] Enkephalin-Arg CAS 76496-10-1

Purity 97%+In StockPharmaceutical Standards
CAS No.76496-10-1
Molecular FormulaC39H59N13O9S
Molecular Weight886.00 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

[Met5,Arg6] Enkephalin-Arg CAS 76496-10-1 chemical structure

Description

CATO manufactures [Met5,Arg6] Enkephalin-Arg under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

[Met5,Arg6] Enkephalin-Arg (CAS 76496-10-1) is a high-purity analytical reference standard with the molecular formula C39H59N13O9S and a molecular weight of 886.00 g/mol.

[Met5,Arg6] Enkephalin-Arg (C39H59N13O9S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.

Physical & Chemical Properties

Molecular FormulaC39H59N13O9S
Molecular Weight886.00 g/mol
Purity97%+
StorageStore in a cool place (≤25°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)17.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1978
Nitrogen Atoms13
Sulfur Atoms1

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