Acetyl-α-MSH (11-13) CAS 57899-96-4

Purity >95%In StockPharmaceutical Standards
CAS No.57899-96-4
Molecular FormulaC18H33N5O4
Molecular Weight383.49 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Acetyl-α-MSH (11-13) CAS 57899-96-4 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Acetyl-α-MSH (11-13).

Acetyl-α-MSH (11-13) (CAS 57899-96-4) is a high-purity analytical reference standard with the molecular formula C18H33N5O4 and a molecular weight of 383.49 g/mol.

Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, Acetyl-α-MSH (11-13) is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 383.49 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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.

CATO manufactures Acetyl-α-MSH (11-13) 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.

Physical & Chemical Properties

Molecular FormulaC18H33N5O4
Molecular Weight383.49 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity>95%
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)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1973
Nitrogen Atoms5

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