5-Bromo-3-methyl-1,2,4-thiadiazole CAS 54681-68-4
| CAS No. | 54681-68-4 |
| Molecular Formula | C3H3BrN2S |
| Molecular Weight | 179.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 179.04 g/mol gives 5-Bromo-3-methyl-1,2,4-thiadiazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-Bromo-3-methyl-1,2,4-thiadiazole (CAS 54681-68-4) is a high-purity analytical reference standard with the molecular formula C3H3BrN2S and a molecular weight of 179.04 g/mol.
5-Bromo-3-methyl-1,2,4-thiadiazole (C3H3BrN2S) contains a nitrile group, sulfur-containing functionality, bromine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
CATO manufactures 5-Bromo-3-methyl-1,2,4-thiadiazole 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 Formula | C3H3BrN2S |
| Molecular Weight | 179.04 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.) | 1972 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 4-Chlorobenzoyl-d4 Chloride (CAS 87367-51-9)
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- 5-Bromothiophen-2(3H)-one (CAS 43225-51-0)
- 4-Amino-2-bromothiazole (CAS 41731-33-3)
- (S)-1-(3-chloro-5-methylphenyl)pentan-1-amine (CAS 1213026-18-6)
- 3-Ethyl-1-methyl-1H-imidazol-3-ium thiocyanate (CAS 331717-63-6)
- 2-Bromo-4-(methylsulfonyl)toluene (CAS 702672-96-6)
- 5-Nitroindole (CAS 6146-52-7)
- 3,4,4-Trimethylcyclohex-2-enone (CAS 17299-41-1)
- 2-Amino-3-iodo-5-nitrobenzoic acid (CAS 1416440-54-4)
- 8-Bromo-3-phenyl-[1,2,4]triazolo[4,3-a]pyridine (CAS 54230-91-0)
- Benzyl 2-[(chlorosulfonyl)methyl]pyrrolidine-1-carboxylate (CAS 1240529-52-5)
- 4-((4-Fluorobenzyl)amino)-1-methyl-1H-pyrazole-3-carboxylic acid (CAS 1006448-78-7)
- Semaglutide impurity 203 (CAS CATO-C4X-2226203)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com