7-Chloro-5-methyl-2-(methylthio)-[1,2,4]triazolo[1,5-a]pyrimidine CAS 101251-18-7
| CAS No. | 101251-18-7 |
| Molecular Formula | C7H7ClN4S |
| Molecular Weight | 214.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 7-Chloro-5-methyl-2-(methylthio)-[1,2,4]triazolo[1,5-a]pyrimidine.
7-Chloro-5-methyl-2-(methylthio)-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 101251-18-7) is a high-purity analytical reference standard with the molecular formula C7H7ClN4S and a molecular weight of 214.68 g/mol.
Based on its molecular formula C7H7ClN4S, 7-Chloro-5-methyl-2-(methylthio)-[1,2,4]triazolo[1,5-a]pyrimidine contains a nitrile group, sulfur-containing functionality, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 214.68 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 7-Chloro-5-methyl-2-(methylthio)-[1,2,4]triazolo[1,5-a]pyrimidine 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 | C7H7ClN4S |
| Molecular Weight | 214.68 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 6-chloro-1-methyl-4-(methylsulfanyl)-1H-pyrazolo[3,4-d]pyrimidine (CAS 101252-80-6)
- 4-Chloro-3-methyl-6-(methylthio)-1H-pyrazolo[3,4-d]pyrimidine (CAS 1190399-72-4)
- 6-Chloro-3-methyl-8-(methylthio)-[1,2,4]triazolo[4,3-b]pyridazine (CAS 1609938-51-3)
- 6-Chloro-4-(ethylthio)-1H-pyrazolo[3,4-d]pyrimidine (CAS 5417-80-1)
- 6-Chloro-8-methyl-2-(methylthio)-7H-purine (CAS 99980-49-1)
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