(Pyr3)-Amyloid β-Protein (3-42) CAS 183449-57-2

Purity >95%In StockPharmaceutical Standards
CAS No.183449-57-2
Molecular FormulaC196H299N53O55S
Molecular Weight4309.92 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(Pyr3)-Amyloid β-Protein (3-42) CAS 183449-57-2 chemical structure

Description

The occurrence of (Pyr3)-Amyloid β-Protein (3-42) is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies (Pyr3)-Amyloid β-Protein (3-42) (CAS 183449-57-2), a certified reference material (molecular formula C196H299N53O55S, MW 4309.92 g/mol) for analytical method development and quality control.

Based on its molecular formula C196H299N53O55S, (Pyr3)-Amyloid β-Protein (3-42) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 4309.92 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC196H299N53O55S
Molecular Weight4309.92 g/mol
Purity>95%
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)74.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2009
Nitrogen Atoms53
Sulfur Atoms1

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