Butanoic acid, 4-azido-, ethyl ester CAS 51453-79-3

Purity 97%+In StockPharmaceutical Standards
CAS No.51453-79-3
Molecular FormulaC6H11N3O2
Molecular Weight157.17 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Butanoic acid, 4-azido-, ethyl ester CAS 51453-79-3 chemical structure

Description

The occurrence of Butanoic acid, 4-azido-, ethyl ester is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Butanoic acid, 4-azido-, ethyl ester (CAS 51453-79-3), molecular formula C6H11N3O2 and molecular weight 157.17 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Butanoic acid, 4-azido-, ethyl ester is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 157.17 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.

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), Butanoic acid, 4-azido-, ethyl ester 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 FormulaC6H11N3O2
Molecular Weight157.17 g/mol
AppearanceWhite to pale yellow crystalline powder. (faint amine-like odor)
Purity97%+
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)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1971
Nitrogen Atoms3

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