1-((5-Cyclopropyl-1-methyl-1H-pyrazol-3-yl)methyl)-3-(thiophen-2-yl)urea CAS 1448136-37-5

Purity 97%+In StockPharmaceutical Standards
CAS No.1448136-37-5
Molecular FormulaC13H16N4OS
Molecular Weight276.36 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-((5-Cyclopropyl-1-methyl-1H-pyrazol-3-yl)methyl)-3-(thiophen-2-yl)urea CAS 1448136-37-5 chemical structure

Description

The occurrence of 1-((5-Cyclopropyl-1-methyl-1H-pyrazol-3-yl)methyl)-3-(thiophen-2-yl)urea is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

1-((5-Cyclopropyl-1-methyl-1H-pyrazol-3-yl)methyl)-3-(thiophen-2-yl)urea (CAS 1448136-37-5), molecular formula C13H16N4OS and molecular weight 276.36 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 1-((5-Cyclopropyl-1-methyl-1H-pyrazol-3-yl)methyl)-3-(thiophen-2-yl)urea (C13H16N4OS) 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 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 276.36 g/mol, it falls into the medium-molecular-weight range. 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), 1-((5-Cyclopropyl-1-methyl-1H-pyrazol-3-yl)methyl)-3-(thiophen-2-yl)urea 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 FormulaC13H16N4OS
Molecular Weight276.36 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)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1992
Nitrogen Atoms4
Sulfur Atoms1

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