2-Amino-7-(2-thienyl)[1,3]thiazolo[4,5-d]pyridazin-4(5H)-one CAS 941868-74-2

Purity 97%+In StockPharmaceutical Standards
CAS No.941868-74-2
Molecular FormulaC9H6N4OS2
Molecular Weight250.30 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Amino-7-(2-thienyl)[1,3]thiazolo[4,5-d]pyridazin-4(5H)-one CAS 941868-74-2 chemical structure

Description

2-Amino-7-(2-thienyl)[1,3]thiazolo[4,5-d]pyridazin-4(5H)-one (CAS 941868-74-2) is a high-purity analytical reference standard with the molecular formula C9H6N4OS2 and a molecular weight of 250.30 g/mol.

Structurally, 2-Amino-7-(2-thienyl)[1,3]thiazolo[4,5-d]pyridazin-4(5H)-one (C9H6N4OS2) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 250.30 g/mol, it falls into the medium-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.

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 FormulaC9H6N4OS2
Molecular Weight250.30 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)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Nitrogen Atoms4
Sulfur Atoms2

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