6-Iodo-[1,2,4]triazolo[4,3-a]pyridin-3(2h)-one CAS 690258-19-6
| CAS No. | 690258-19-6 |
| Molecular Formula | C6H4IN3O |
| Molecular Weight | 261.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6-Iodo-[1,2,4]triazolo[4,3-a]pyridin-3(2h)-one (CAS 690258-19-6), molecular formula C6H4IN3O and molecular weight 261.02 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a hydroxyl group, an ether linkage, iodine substitution, an aromatic ring system, 6-Iodo-[1,2,4]triazolo[4,3-a]pyridin-3(2h)-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 261.02 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 6-Iodo-[1,2,4]triazolo[4,3-a]pyridin-3(2h)-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.
Physical & Chemical Properties
| Molecular Formula | C6H4IN3O |
| Molecular Weight | 261.02 g/mol |
| Appearance | Off-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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 3 |
Related Iodo Standards
- 7-Iodo-1H-pyrrolo[3,2-d]pyrimidin-4(5H)-one (CAS 1239602-17-5)
- 7-Iodo-[1,2,4]triazolo[4,3-a]pyridin-3(2H)-one (CAS 1306554-49-3)
- 5-Iodo-1H-pyrazolo[3,4-b]pyridin-3(2H)-one (CAS 1379322-80-1)
- 5-Iodo-1H-pyrazolo[3,4-b]pyrazin-3-amine (CAS 1392149-77-7)
- 3-Iodo-3H-Pyrazolo[3,4-d]Pyrimidin-4-Amine (CAS 151266-23-8)
- 3-Iodo-1H-pyrazolo[4,3-d]pyrimidin-7-amine (CAS 162791-82-4)
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- 3-Iodo-1H-pyrazolo[3,4-d]pyrimidin-6-amine (CAS 1935147-85-5)
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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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