5-Chloromethyl-4-methyl-[1,2,3]thiadiazole CAS 82172-42-7
| CAS No. | 82172-42-7 |
| Molecular Formula | C4H5ClN2S |
| Molecular Weight | 148.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
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.
5-Chloromethyl-4-methyl-[1,2,3]thiadiazole (CAS 82172-42-7) is a high-purity analytical reference standard with the molecular formula C4H5ClN2S and a molecular weight of 148.61 g/mol.
Based on its molecular formula C4H5ClN2S, 5-Chloromethyl-4-methyl-[1,2,3]thiadiazole contains a nitrile group, sulfur-containing functionality, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 148.61 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 5-Chloromethyl-4-methyl-[1,2,3]thiadiazole 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 | C4H5ClN2S |
| Molecular Weight | 148.61 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1980 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chloromethyl Standards
- 5-(Chloromethyl)-3-methyl-1,2,4-thiadiazole (CAS 163009-79-8)
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Recommended Standards
- 5-chloro-4-methylthiazol-2-amine (CAS 5316-76-7)
- 5-chloro-N-methyl-1,3-thiazol-2-amine (CAS 37660-89-2)
- 5-chloro-thiazole-2-carbonitrile (CAS 98020-94-1)
- 2-chloranyl-1,3-thiazole-5-carbonitrile 2-chloro-5-thiazolecarbonitrile 51640-36-9 A828703 (CAS 51640-36-9)
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- 4-(2,3-Dimethylphenyl)-5-(4-(piperidin-1-ylsulfonyl)phenyl)-4H-1,2,4-triazole-3-thiol (CAS 917750-07-3)
- 4-(Benzo[d][1,3]dioxol-5-ylmethyl)thiomorpholine 1,1-dioxide (CAS 477858-19-8)
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- 2-(2-Bromo-1,3-thiazol-5-yl)-1,1,1,3,3,3-hexafluoropropan-2-ol (CAS 1196694-65-1)
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