2,5,6,7-Tetrahydro-4,7-ethanopyrazolo[4,3-b]pyridine hydrochloride CAS 2089258-31-9
| CAS No. | 2089258-31-9 |
| Molecular Formula | C8H11N3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 2,5,6,7-Tetrahydro-4,7-ethanopyrazolo[4,3-b]pyridine hydrochloride (C8H11N3HCl) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
2,5,6,7-Tetrahydro-4,7-ethanopyrazolo[4,3-b]pyridine hydrochloride (CAS 2089258-31-9) is a high-purity analytical reference standard with the molecular formula C8H11N3HCl and a molecular weight of 185.66 g/mol.
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.
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 | C8H11N3 HCl |
| Molecular Weight | 185.66 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
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Recommended Standards
- 2-(5-Azetidin-3-yl-1,2,4-oxadiazol-3-yl)pyridine dihydrochloride (CAS 1351618-83-1)
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- (R)-2-Amino-3-(4-hydroxyphenyl)propanamide (CAS 111004-07-0)
- 3-(4-(Aminomethyl)tetrahydro-2h-pyran-4-yl)azetidin-3-ol (CAS 1517743-25-7)
- Methyl 2,3-dichloro-4-methylbenzoate (CAS 149543-63-5)
- Methyl 2-{4-[(4-methoxyphenyl)sulfonyl]-3,4-dihydro-2H-1,4-benzoxazin-3-yl}acetate (CAS 439107-36-5)
- 2-(Difluoromethoxy)-2'-(trifluoromethoxy)-3-(trifluoromethyl)biphenyl (CAS 1261558-89-7)
- (5E)-5-[(1H-Indol-3-yl)methylidene]-3-methyl-1,3-thiazolidine-2,4-dione (CAS 365989-89-5)
- CBP501 Affinity Peptide trifluoroacetate salt (CAS 1351804-17-5)
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