5-Isopropyl-3-methyl-2-(methylthio)pyrazine CAS 99784-22-2

Purity 97%+In StockPharmaceutical Standards
CAS No.99784-22-2
Molecular FormulaC9H14N2S
Molecular Weight182.29 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Isopropyl-3-methyl-2-(methylthio)pyrazine CAS 99784-22-2 chemical structure

Description

The occurrence of 5-Isopropyl-3-methyl-2-(methylthio)pyrazine is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

5-Isopropyl-3-methyl-2-(methylthio)pyrazine (CAS 99784-22-2), molecular formula C9H14N2S and molecular weight 182.29 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C9H14N2S, 5-Isopropyl-3-methyl-2-(methylthio)pyrazine contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 182.29 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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-Isopropyl-3-methyl-2-(methylthio)pyrazine 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 FormulaC9H14N2S
Molecular Weight182.29 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)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1985
Nitrogen Atoms2
Sulfur Atoms1

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