1,8-Naphthyridine-3-carboxylic Acid, 1,4-dihydro-7-[(3S,4S)-3-methoxy-4-(methylamino)-1-pyrrolidinyl]-4-oxo-1-(2-thiazolyl)-, monohydrochloride 175519-16-1 3043AH C18H19N5O4S.ClH CAS 175519-16-1

Purity 97%+In StockPharmaceutical Standards
CAS No.175519-16-1
Molecular FormulaC18H19N5O4S
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,8-Naphthyridine-3-carboxylic Acid, 1,4-dihydro-7-[(3S,4S)-3-methoxy-4-(methylamino)-1-pyrrolidinyl]-4-oxo-1-(2-thiazolyl)-, monohydrochloride
175519-16-1
3043AH
C18H19N5O4S.ClH CAS 175519-16-1 chemical structure

Description

The occurrence of 1,8-Naphthyridine-3-carboxylic Acid, 1,4-dihydro-7-[(3S,4S)-3-methoxy-4-(methylamino)-1-pyrrolidinyl]-4-oxo-1-(2-thiazolyl)-, monohydrochloride 175519-16-1 3043AH C18H19N5O4S.ClH is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

1,8-Naphthyridine-3-carboxylic Acid, 1,4-dihydro-7-[(3S,4S)-3-methoxy-4-(methylamino)-1-pyrrolidinyl]-4-oxo-1-(2-thiazolyl)-, monohydrochloride 175519-16-1 3043AH C18H19N5O4S.ClH (CAS 175519-16-1) is a high-purity analytical reference standard with the molecular formula C18H19N5O4SHCl and a molecular weight of 437.90 g/mol.

Structurally, 1,8-Naphthyridine-3-carboxylic Acid, 1,4-dihydro-7-[(3S,4S)-3-methoxy-4-(methylamino)-1-pyrrolidinyl]-4-oxo-1-(2-thiazolyl)-, monohydrochloride 175519-16-1 3043AH C18H19N5O4S.ClH (C18H19N5O4SHCl) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 437.90 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), 1,8-Naphthyridine-3-carboxylic Acid, 1,4-dihydro-7-[(3S,4S)-3-methoxy-4-(methylamino)-1-pyrrolidinyl]-4-oxo-1-(2-thiazolyl)-, monohydrochloride 175519-16-1 3043AH C18H19N5O4S.ClH 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 FormulaC18H19N5O4S HCl
Molecular Weight437.90 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; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2007
Halogen ContentCl-containing
Nitrogen Atoms5
Sulfur Atoms1

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