5-Bromo-1,2-dihydro-3H-1,2,4-triazol-3-one CAS 15777-64-7
| CAS No. | 15777-64-7 |
| Molecular Formula | C2H2BrN3O |
| Molecular Weight | 163.96 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 5-Bromo-1,2-dihydro-3H-1,2,4-triazol-3-one 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.
5-Bromo-1,2-dihydro-3H-1,2,4-triazol-3-one (CAS 15777-64-7), molecular formula C2H2BrN3O and molecular weight 163.96 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-Bromo-1,2-dihydro-3H-1,2,4-triazol-3-one (C2H2BrN3O) contains an amide group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 163.96 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C2H2BrN3O |
| Molecular Weight | 163.96 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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.) | 1961 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related Bromo Standards
- 5-bromo-1,3,4-oxadiazol-2-amine (CAS 1446407-48-2)
- 4-Bromo-1,2,5-oxadiazol-3-amine (CAS 159013-88-4)
- 4-Bromo-1,2-oxazol-3-ol (CAS 31561-94-1)
- 2-bromo-5-fluoro-1H-pyrrole (CAS 1369367-18-9)
- 4-Bromo-1-(▓H)methylpyrazole (CAS 1185320-08-4)
- 3-Bromo-1-methylpyrrolidine (CAS 10603-45-9)
- 2-Bromo-3-methylbut-2-en-1-amine (CAS 111463-45-7)
- (R)-3-Bromo-1-methylpyrrolidine (CAS 1353997-56-4)
Recommended Standards
- (3,4-Dihydroxy-3-(hydroxymethyl)butan-2-yl)boronic acid (CAS 1148041-52-4)
- 2,6-Difluorobenzeneboronic acid (CAS 162101-25-9)
- Benzo[c][1,2,5]oxadiazol-5-ylboronic acid (CAS 426268-09-9)
- 5-Cyano-1,2-dihydro-2-oxopyridine-3-boronic acid (CAS 903899-12-7)
- 2-Bromo-1-(3-fluoropyridin-2-yl)ethan-1-one (CAS 1044270-51-0)
- Ethyl (R)-1-Boc-4,4-difluoropyrrolidine-2-carboxylate (CAS 1523530-40-6)
- O-Methyl Phosphorodichloridothioate (CAS 2523-94-6)
- Benzylmethyl(2-(pyrrolidin-1-yl)-1-(p-tolyl)ethyl)carbamate (CAS 675602-72-9)
- Tert-butyl 4-(2-(4-formylphenoxy)ethyl)piperazine-1-carboxylate (CAS 1086378-39-3)
- Tert-butyl (3R,4S)-3,4-bis(hydroxymethyl)-3-methylpyrrolidine-1-carboxylate (CAS 2306248-96-2)
- 1-Allyl-3-(4,5-dihydronaphtho[1,2-d]thiazol-2-yl)urea (CAS 1206998-45-9)
- Aprepitant Impurity 32 (CAS 225920-05-8)
- trans-2-(3-Isopropoxyphenyl)cyclopentanol (CAS 933674-45-4)
- Tirzepatide(sodium salt) (CAS 2023788-19-2(free base))
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com