6-Methyl-2-Thiouracil CAS 56-04-2

Purity >95%In StockPharmaceutical Standards
CAS No.56-04-2
Molecular FormulaC5H6N2OS
Molecular Weight142.18 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

6-Methyl-2-Thiouracil CAS 56-04-2 chemical structure

Description

As a certified reference material (CRM), 6-Methyl-2-Thiouracil 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.

6-Methyl-2-Thiouracil (CAS 56-04-2), molecular formula C5H6N2OS and molecular weight 142.18 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 6-Methyl-2-Thiouracil (C5H6N2OS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 142.18 g/mol, it falls into the low-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.

Physical & Chemical Properties

Molecular FormulaC5H6N2OS
Molecular Weight142.18 g/mol
Purity>95%
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.)1957
Nitrogen Atoms2
Sulfur Atoms1

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Why CATO?