2-Bromo-5-(4-methoxyphenyl)-1,3,4-thiadiazole CAS 57709-54-3
| CAS No. | 57709-54-3 |
| Molecular Formula | C9H7BrN2OS |
| Molecular Weight | 271.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Bromo-5-(4-methoxyphenyl)-1,3,4-thiadiazole (C9H7BrN2OS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, 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.
2-Bromo-5-(4-methoxyphenyl)-1,3,4-thiadiazole (CAS 57709-54-3), molecular formula C9H7BrN2OS and molecular weight 271.13 g/mol, is a CATO reference standard with documented purity and traceability.
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), 2-Bromo-5-(4-methoxyphenyl)-1,3,4-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 | C9H7BrN2OS |
| Molecular Weight | 271.13 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- Hexa-2,4-diyne-1,6-diyl bis(4-methylbenzenesulfonate) (CAS 32527-15-4)
- (E)-2-(4-(dimethylamino)styryl)-4H-chromen-4-one (CAS 1401427-97-1)
- Tert-butyl n-[(1s,2s)-2-aminocyclopropyl]carbamate hydrochloride (CAS 1332634-89-5)
- Propargyl-PEG3-amine (CAS 932741-19-0)
- 1-(2,5-dimethoxy-4-methylphenyl)-2-propanone Oxime (CAS 43021-99-4)
- Methyl 5-chloro-6-formyl-2-methoxynicotinate (CAS 2750929-09-8)
- Faropenem Impurity 27 (CAS CATO-C4X-128927)
- 3-Aminopyrazole-4-carboxylic acid (CAS 41680-34-6)
- Liraglutide Impurity 19 TFA Salt (CAS CATO-C4X-199219)
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