5-(pyrrolidin-2-yl)-1H-1,2,3,4-tetrazole hydrochloride CAS 1171522-63-6
| CAS No. | 1171522-63-6 |
| Molecular Formula | C5H9N5 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-(pyrrolidin-2-yl)-1H-1,2,3,4-tetrazole hydrochloride is closely related to a nitrile group, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5-(pyrrolidin-2-yl)-1H-1,2,3,4-tetrazole hydrochloride (CAS 1171522-63-6), molecular formula C5H9N5HCl and molecular weight 175.62 g/mol, is a CATO reference standard with documented purity and traceability.
5-(pyrrolidin-2-yl)-1H-1,2,3,4-tetrazole hydrochloride (C5H9N5HCl) 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.
CATO manufactures 5-(pyrrolidin-2-yl)-1H-1,2,3,4-tetrazole hydrochloride 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 | C5H9N5 HCl |
| Molecular Weight | 175.62 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.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
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Recommended Standards
- 2-(Pyridin-3-yl)ethyl quinoline-4-carboxylate (CAS 5471-13-6)
- 3,4-Difluorophenethyl ethyl oxalate (CAS 1443334-89-1)
- 4-(Difluoromethyl)-6-iodo-2-(trifluoromethoxy)nicotinic acid (CAS 1805096-43-8)
- 5-Phenethyl-1H-imidazol-2-amine (CAS 1033822-52-4)
- 6-Benzyl-6-azabicyclo[3.2.1]octan-3-one (CAS 16607-47-9)
- 5-Chloro-2-hydroxy-6-methyl-4-(trifluoromethyl)nicotinonitrile (CAS 1092352-68-5)
- N-(5-Cyano-3-cyclopropoxypyridin-2-yl)methanesulfonamide (CAS 1243440-99-4)
- tert-Butyl ((4-methylenecyclohexyl)methyl)carbamate (CAS 1262408-43-4)
- 2-Chloro-N,N-dimethyl-2-phenylacetamide (CAS 65117-30-8)
- Semaglutide impurity 67 (CAS CATO-C4X-222667)
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