5-Ethynyl-4-methoxypyrimidine CAS 219915-20-5

Purity 97%+In StockPharmaceutical Standards
CAS No.219915-20-5
Molecular FormulaC7H6N2O
Molecular Weight134.14 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Ethynyl-4-methoxypyrimidine CAS 219915-20-5 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 5-Ethynyl-4-methoxypyrimidine.

5-Ethynyl-4-methoxypyrimidine (CAS 219915-20-5) is a high-purity analytical reference standard with the molecular formula C7H6N2O and a molecular weight of 134.14 g/mol.

Owing to an amide group, a hydroxyl group, an ether linkage, an aromatic ring system, 5-Ethynyl-4-methoxypyrimidine is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 134.14 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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), 5-Ethynyl-4-methoxypyrimidine 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 FormulaC7H6N2O
Molecular Weight134.14 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2019
Nitrogen Atoms2

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