(2H-Tetrazol-5-yl)methanamine hydrobromide CAS 33841-56-4
| CAS No. | 33841-56-4 |
| Molecular Formula | C2H5N5 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(2H-Tetrazol-5-yl)methanamine hydrobromide (CAS 33841-56-4), molecular formula C2H5N5HBr and molecular weight 180.01 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, bromine substitution, (2H-Tetrazol-5-yl)methanamine hydrobromide is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 180.01 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
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 | C2H5N5 HBr |
| Molecular Weight | 180.01 g/mol |
| 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 | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 5 |
Related H Standards
- 3-(2H-1,2,3,4-tetrazol-5-yl)propanoic acid (CAS 100508-42-7)
- 2-(1H-Tetrazol-1-yl)terephthalic acid (CAS 1010915-67-9)
- 5-(1h-1,2,3,4-Tetrazol-1-yl)-1h-pyrazole-4-carboxylic acid (CAS 1011355-63-7)
- 2-[2-(1H-1,2,3,4-tetrazol-1-yl)acetamido]benzoic acid (CAS 1016820-03-3)
- 1-(2-(1h-Tetrazol-1-yl)acetyl)piperidine-3-carboxylic acid (CAS 1016869-85-4)
- 3-(2H-tetrazol-5-yl)benzene-1,2-diol (CAS 1020046-26-7)
- 2-(1H-tetrazol-1-yl)propanoic acid (CAS 103386-56-7)
- 3-(1H-tetrazol-1-yl)-1H-pyrazole-5-carboxylic acid (CAS 1039008-40-6)
Recommended Standards
- 3-(4,4,5,5-Tetramethyl-1,3,2-dioxaboratophenyl)-methyl triphenylphosphonium bromide (CAS 1247025-85-9)
- 5-(4-Bromophenyl)-6-methylthiazolo[3,2-b][1,2,4]triazole (CAS 1574587-82-8)
- (2S,3R,4R,5S,6R)-3-(1,3-dioxoisoindolin-2-yl)-2-(ethylthio)-5-hydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-4-yl acetate (CAS 189188-19-0)
- Quinestrol (CAS 152-43-2)
- Prucalopride Impurity 53 (CAS CATO-C4X-103853)
- 6-Cyclohexyl-1-hexyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 61299-74-9)
- Lemborexant Impurity 94 (CAS CATO-C4X-304294)
- 2-Chloro-5-((4-methoxyphenoxy)methyl)thiazole (CAS 339018-20-1)
- (2S,4S)-4-(4-bromobenzyl)pyrrolidine-2-carboxylic acid (CAS 1260606-79-8)
- Insulin Degludec Impurity 27 (CAS CATO-C4X-215727)
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