5-chloro-2-methyl-3H,4H-pyrrolo[2,1-f][1,2,4]triazin-4-one CAS 628734-34-9

Purity 97%+In StockPharmaceutical Standards
CAS No.628734-34-9
Molecular FormulaC7H12ClN3O
Molecular Weight189.64 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-chloro-2-methyl-3H,4H-pyrrolo[2,1-f][1,2,4]triazin-4-one CAS 628734-34-9 chemical structure

Description

The occurrence of 5-chloro-2-methyl-3H,4H-pyrrolo[2,1-f][1,2,4]triazin-4-one is closely related to an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

5-chloro-2-methyl-3H,4H-pyrrolo[2,1-f][1,2,4]triazin-4-one (CAS 628734-34-9) is a high-purity analytical reference standard with the molecular formula C7H12ClN3O and a molecular weight of 189.64 g/mol.

Based on its molecular formula C7H12ClN3O, 5-chloro-2-methyl-3H,4H-pyrrolo[2,1-f][1,2,4]triazin-4-one contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 189.64 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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 FormulaC7H12ClN3O
Molecular Weight189.64 g/mol
AppearanceWhite to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1985
Halogen ContentCl-containing
Nitrogen Atoms3

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