21948-70-9 R1C97E3A4F (Methylthio)pyrazine Pyrazine, 2-(methylthio)- Pyrazine, (methylthio)- EINECS 244-675-1 FEMA No. 3231 Methyl pyrazinyl sulfide 2-Methylmercaptopyrazine 2-Methylthiopyrazine Pyrazinyl methyl sulfide UNII-R1C97E3A4F CAS 21948-70-9

Purity 97%+In StockPharmaceutical Standards
CAS No.21948-70-9
Molecular FormulaC5H6N2S
Molecular Weight126.18 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

21948-70-9 R1C97E3A4F (Methylthio)pyrazine Pyrazine, 2-(methylthio)- Pyrazine, (methylthio)- EINECS 244-675-1 FEMA No. 3231 Methyl pyrazinyl sulfide 2-Methylmercaptopyrazine 2-Methylthiopyrazine Pyrazinyl methyl sulfide UNII-R1C97E3A4F CAS 21948-70-9 chemical structure

Description

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.

21948-70-9 R1C97E3A4F (Methylthio)pyrazine Pyrazine, 2-(methylthio)- Pyrazine, (methylthio)- EINECS 244-675-1 FEMA No. 3231 Methyl pyrazinyl sulfide 2-Methylmercaptopyrazine 2-Methylthiopyrazine Pyrazinyl methyl sulfide UNII-R1C97E3A4F (CAS 21948-70-9) is a high-purity analytical reference standard with the molecular formula C5H6N2S and a molecular weight of 126.18 g/mol.

Based on its molecular formula C5H6N2S, 21948-70-9 R1C97E3A4F (Methylthio)pyrazine Pyrazine, 2-(methylthio)- Pyrazine, (methylthio)- EINECS 244-675-1 FEMA No. 3231 Methyl pyrazinyl sulfide 2-Methylmercaptopyrazine 2-Methylthiopyrazine Pyrazinyl methyl sulfide UNII-R1C97E3A4F contains a nitrile group, sulfur-containing functionality; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 126.18 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).

CATO manufactures 21948-70-9 R1C97E3A4F (Methylthio)pyrazine Pyrazine, 2-(methylthio)- Pyrazine, (methylthio)- EINECS 244-675-1 FEMA No. 3231 Methyl pyrazinyl sulfide 2-Methylmercaptopyrazine 2-Methylthiopyrazine Pyrazinyl methyl sulfide UNII-R1C97E3A4F under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC5H6N2S
Molecular Weight126.18 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
CAS Registry Year (est.)1963
Nitrogen Atoms2
Sulfur Atoms1

Recommended Standards

Why CATO?