7-Chloro-3H-[1,2,3]triazolo[4,5-β]pyridine CAS 34550-49-7
| CAS No. | 34550-49-7 |
| Molecular Formula | C5H3ClN4 |
| Molecular Weight | 154.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 7-Chloro-3H-[1,2,3]triazolo[4,5-β]pyridine (CAS 34550-49-7), a certified reference material (molecular formula C5H3ClN4, MW 154.56 g/mol) for analytical method development and quality control.
7-Chloro-3H-[1,2,3]triazolo[4,5-β]pyridine (C5H3ClN4) contains a nitrile group, chlorine substitution. Halogen substitution raises its density and boiling point; 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.
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), 7-Chloro-3H-[1,2,3]triazolo[4,5-β]pyridine 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 | C5H3ClN4 |
| Molecular Weight | 154.56 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 |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Chloro Standards
- 3-chloro-[1,2,4]triazolo[4,3-a]pyrimidine (CAS 1020036-31-0)
- 4-Chloro-1H-imidazo[4,5-d]pyridazine (CAS 1083181-53-6)
- 6-Chloro-7H-purine (CAS 111055-92-6)
- 7-Chloro-[1,2,4]triazolo[1,5-c]pyrimidine (CAS 1159811-23-0)
- 5-Chloro-1H-pyrazolo[3,4-b]pyrazine (CAS 116527-52-7)
- 5-Chloro-1H-imidazo[4,5-b]pyrazine (CAS 1196151-76-4)
- 6-Chloro-3H-[1,2,3]triazolo[4,5-c]pyridine (CAS 120641-09-0)
- 8-Chloro-[1,2,4]triazolo[4,3-c]pyrimidine (CAS 1208083-81-1)
Recommended Standards
- 7-Chloro-1H-pyrazolo[4,3-d]pyrimidine (CAS 923282-64-8)
- 8-Chloro-[1,2,4]triazolo[1,5-a]pyrazine (CAS 74803-32-0)
- 7-Chloro-1,2,4-triazolo[1,5-a]pyrimidine (CAS 52341-91-0)
- 8-Chloro[1,2,4]triazolo[4,3-a]pyrazine (CAS 68774-77-6)
- N4-Ethyl-6-fluoropyrimidine-2,4-diamine (CAS 165258-68-4)
- 3-(Hydroxymethyl)-2-methylimidazo[1,2-a]pyridine-6-carbonitrile (CAS 2055660-85-8)
- 2,4-Di(pyrrolidin-1-yl)pyrimidin-5-amine (CAS 1706447-19-9)
- 1,6-Dimethyl-2-oxo-1,2-dihydroquinoline-3-carbaldehyde (CAS 118672-67-6)
- 5-(Piperidin-4-yl)-2,3-dihydro-1H-pyrazol-3-one (CAS 957365-77-4)
- 2-(3-Aminothiophen-2-yl)acetic acid (CAS 740020-96-6)
- Ethyl 3-(naphthalen-1-yl)propanoate (CAS 36818-50-5)
- 6-Chloro-3-{[2-(propan-2-yl)-1,3-thiazol-4-yl]methyl}-3,4-dihydroquinazolin-4-one (CAS 1241067-67-3)
- Ticlopidine-d4 (CAS 1246817-49-1)
- Semaglutide Impurity 10 (CAS CATO-C4X-222610)
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