6-Mercapto-2-(methylthio)pyrimidine-4(3H)-thione CAS 6299-30-5
| CAS No. | 6299-30-5 |
| Molecular Formula | C5H6N2S3 |
| Molecular Weight | 190.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 6-Mercapto-2-(methylthio)pyrimidine-4(3H)-thione is closely related to a nitrile group, sulfur-containing functionality in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
6-Mercapto-2-(methylthio)pyrimidine-4(3H)-thione (CAS 6299-30-5) is a high-purity analytical reference standard with the molecular formula C5H6N2S3 and a molecular weight of 190.31 g/mol.
Based on its molecular formula C5H6N2S3, 6-Mercapto-2-(methylthio)pyrimidine-4(3H)-thione contains a nitrile group, sulfur-containing functionality; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 190.31 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), 6-Mercapto-2-(methylthio)pyrimidine-4(3H)-thione 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 Formula | C5H6N2S3 |
| Molecular Weight | 190.31 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 3 |
Related Mercapto Standards
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- 7-Mercapto-4-methyl-2H-chromen-2-one (CAS 137215-27-1)
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Recommended Standards
- 4-(1-Methylsiletan-1-yl)benzaldehyde (CAS 873292-81-0)
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- 3-(Carbomethoxy)propyldimethylmethoxysilane (CAS 204641-79-2)
- N-(2-aminoethyl)-4-methyl-4-sulfanyl-pentanamide (CAS 2348406-11-9)
- 2-(4-Hydroxyphenyl)pyrimidine-5-carboxylic acid (CAS 142603-90-5)
- 2-Amino-N,4-dimethyl-N-(thiophen-2-ylmethyl)pentanamide hydrochloride (CAS 1423024-07-0)
- N-(2,4-Dimethoxyphenyl)-3-methylbenzamide (CAS 328270-05-9)
- Octahydro-1H-pyrrolo[2,3-c]pyridin-2-one (CAS 1196155-87-9)
- 1-(3,4-Dimethoxyphenyl)-3-methylbutan-1-one (CAS 132858-47-0)
- N-(3-Ethoxypropyl)-1-methyl-4-nitro-1H-pyrazol-3-amine (CAS 1429418-91-6)
- 5-Chloro-2-methyl-1H-benzo[d]imidazole-6-carboxylic acid (CAS 200111-69-9)
- 2,3-Bis(4-bromophenyl)cycloprop-2-en-1-one (CAS 501034-29-3)
- 4-Fluoro-n-(4-methoxyphenyl)benzene-1-sulfonamide (CAS 360-18-9)
- Tirzepatide Impurity 9 (CAS CATO-C4X-32409)
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