5-Hydrazino-1-phenyl-1H-1,2,3,4-tetraazole CAS 5533-43-7
| CAS No. | 5533-43-7 |
| Molecular Formula | C7H8N6 |
| Molecular Weight | 176.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
5-Hydrazino-1-phenyl-1H-1,2,3,4-tetraazole (CAS 5533-43-7), molecular formula C7H8N6 and molecular weight 176.18 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H8N6, 5-Hydrazino-1-phenyl-1H-1,2,3,4-tetraazole contains a nitrile group, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 176.18 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C7H8N6 |
| Molecular Weight | 176.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 6 |
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Recommended Standards
- 5-Amino-2-phenyl-1H-1,2,4-triazol-3(2H)-one (CAS 29472-94-4)
- 5-Hydrazinyl-3-phenyl-1,2,4-oxadiazole (CAS 7627-10-3)
- 5-(Phenoxymethyl)-2h-1,2,3,4-tetrazole (CAS 24896-23-9)
- 6,7-Diaminoquinoxalin-2-ol (CAS 956622-43-8)
- (3S,5S,6R)-3-(3-Butenyl)-2-oxo-5,6-diphenyl-4-morpholinecarboxylic Acid tert-Butyl Ester (CAS 144542-72-3)
- 4-Methylbicyclo[2.2.2]Octan-1-amine (CAS 1123-38-2)
- tert-Butyl 8-oxo-7-azabicyclo[4.2.0]octane-7-carboxylate (CAS 1335031-70-3)
- 2-(2,5-Difluoro-4-methoxyphenyl)-2-hydroxyacetic acid (CAS 1261825-63-1)
- 7-(tert-Butyl)-4-chloro-5-iodo-7H-pyrrolo[2,3-d]pyrimidine (CAS 1657004-05-1)
- 5-Methyl-3-(4H-1,2,4-triazol-4-yl)-1H-pyrazol-4-amine (CAS 1232838-41-3)
- n-(4-Bromophenyl)piperidine-1-sulfonamide (CAS 824972-44-3)
- 3-(Prop-2-yn-1-yloxy)piperidine hydrochloride (CAS 1185301-44-3)
- Paliperidone Impurity 108 HCl (CAS CATO-C4X-1724108)
- Semaglutide impurity 210 (CAS CATO-C4X-2226210)
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