[1,2,4]Triazolo[4,3-b]pyridazine-7-carboxylic acid CAS 127478-29-9
| CAS No. | 127478-29-9 |
| Molecular Formula | C6H4N4O2 |
| Molecular Weight | 164.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
[1,2,4]Triazolo[4,3-b]pyridazine-7-carboxylic acid (CAS 127478-29-9) is a high-purity analytical reference standard with the molecular formula C6H4N4O2 and a molecular weight of 164.12 g/mol.
[1,2,4]Triazolo[4,3-b]pyridazine-7-carboxylic acid (C6H4N4O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C6H4N4O2 |
| Molecular Weight | 164.12 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Nitrogen Atoms | 4 |
Related Triazolo Standards
- [1,2,4]triazolo[4,3-a]pyrimidine-3-carboxylic acid (CAS 1018665-49-0)
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- [1,2,4]Triazolo[4,3-a]pyrimidine-6-carboxylic acid (CAS 1368381-98-9)
- [1,2,4]triazolo[4,3-c]pyrimidine-3-carboxylic acid (CAS 1850867-22-9)
- [1,2,4]Triazolo[1,5-a]pyrimidine-2-carboxylic acid (CAS 202065-25-6)
- [1,2,4]triazolo[4,3-a]pyrazine-6-carboxylicacid (CAS 2092083-38-8)
- [1,2,4]Triazolo[4,3-b]pyridazine-3-carboxylic acid (CAS 330440-42-1)
- [1,2,4]Triazolo[4,3-b]pyridazine-6-carboxylic acid (CAS 56434-29-8)
Recommended Standards
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