5-Chloro-[1,2,3,4]tetrazolo[1,5-a]pyridine CAS 35235-72-4
| CAS No. | 35235-72-4 |
| Molecular Formula | C5H3ClN4 |
| Molecular Weight | 154.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 154.56 g/mol gives 5-Chloro-[1,2,3,4]tetrazolo[1,5-a]pyridine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 5-Chloro-[1,2,3,4]tetrazolo[1,5-a]pyridine (CAS 35235-72-4), a certified reference material (molecular formula C5H3ClN4, MW 154.56 g/mol) for analytical method development and quality control.
Based on its molecular formula C5H3ClN4, 5-Chloro-[1,2,3,4]tetrazolo[1,5-a]pyridine contains a nitrile group, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 154.56 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 5-Chloro-[1,2,3,4]tetrazolo[1,5-a]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.) | 1967 |
| 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
- 5-Amino-6-chloropyridazine-4-carbonitrile (CAS 212138-89-1)
- 5-chloro-[1,2,3]triazolo[1,5-c]pyrimidine (CAS 2383585-48-4)
- 4-Chloroimidazo[1,5-f][1,2,4]triazine (CAS 889945-79-3)
- 5-Chloro-[1,2,4]triazolo[1,5-a]pyrazine (CAS 42399-82-6)
- 6-Bromo-5-cyclopropoxynicotinamide (CAS 1243473-64-4)
- 1-(2-Thioxothiazolidin-3-yl)ethanone (CAS 76397-53-0)
- 5-Formyl-4-methyl-1H-pyrrole-2-carboxylic acid (CAS 280748-43-8)
- Borate(2-), [(1R)-1-[[[[(2S)-2-amino-2-carboxyethoxy]hydroxyphosphinyl]oxy]methyl]-2-[(1-oxohexadecyl)oxy]ethyl λ-(3,5-dimethyl-2H-pyrrol-2-ylidene-κN)-3,5-dimethyl-1H-pyrrole-2-dodecanoato(3-)-κN1]difluoro-, ammonium hydrogen (1:1:1), (T-4)- (CAS 1246355-65-6)
- 5-Bromo-3-cyanopicolinic acid (CAS 1346533-87-6)
- 4-(2-Hydroxyethyl)thiomorpholine 1,1-Dioxide (CAS 26475-62-7)
- 5-Amino-3-(3-chlorophenyl)isoxazole-4-carbonitrile (CAS 938226-53-0)
- (2R,3R,4R)-5,5-bis(benzylthio)pentane-1,2,3,4-tetraol (CAS 64780-55-8)
- Tetrahydro-2-furanylmethyl 4-hydroxybenzoate (CAS 4470-04-6)
- Tirzepatide Impurity 47 (CAS CATO-C4X-324047)
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