2-(3-Amino-4-bromo-1h-pyrazol-1-yl)butanenitrile CAS 1248936-39-1
| CAS No. | 1248936-39-1 |
| Molecular Formula | C7H9BrN4 |
| Molecular Weight | 229.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(3-Amino-4-bromo-1h-pyrazol-1-yl)butanenitrile (CAS 1248936-39-1), molecular formula C7H9BrN4 and molecular weight 229.08 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-(3-Amino-4-bromo-1h-pyrazol-1-yl)butanenitrile (C7H9BrN4) is characterized by a nitrile group, bromine substitution, an aromatic ring system. 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.
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 | C7H9BrN4 |
| Molecular Weight | 229.08 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 4 |
Related Amino Standards
- 4-(3-Amino-4-bromo-1h-pyrazol-1-yl)butanenitrile (CAS 1248252-51-8)
- 2-Amino-3-(4-bromo-1h-pyrazol-1-yl)-2-methylpropanenitrile (CAS 1250956-82-1)
- 5-Amino-3-bromo-1-isopropyl-1H-pyrazole-4-carbonitrile (CAS 1390635-69-4)
- 2-Amino-3-bromo-N-methylbenzamide (CAS 1022960-45-7)
- 2-Amino-2-(3-bromophenyl)acetamide (CAS 1105679-26-2)
- 3-Amino-4-bromo-N-methylbenzamide (CAS 1177098-90-6)
- 2-Amino-5-bromo-N-methylbenzamide (CAS 1257996-85-2)
- 3-Amino-5-bromo-N-methylbenzamide (CAS 1375069-14-9)
Recommended Standards
- 4-Chloro-1-ethyl-1h-pyrazole-5-sulfonyl chloride (CAS 1245822-74-5)
- 1-BOC-PIPERIDINE-4-BORONIC ACID (CAS 1251537-39-9)
- 6-Bromo-1-ethyl-3-methyl-1,4-dihydropyrazolo[4,3-c]pyrazole (CAS 1239738-02-3)
- 4-(4,4,6-Trimethyl-1,3,2-dioxaborinan-2-yl)benzonitrile (CAS 1092060-81-5)
- 2-Trifluoromethyl-pyrrolidine-1,3-dicarboxylic acid 1-tert-butyl ester (CAS 2356788-38-8)
- 7-Bromo-2,4-dichloro-8-methylquinazoline (CAS 1388056-03-8)
- 7-Bromo-4-methoxyindoline (CAS 1427502-76-8)
- [1,2,4]triazolo[4,3-c]pyrimidin-3-amine (CAS 859765-68-7)
- 5-Methyl-2-(trifluoromethyl)-4H,7H-[1,2,4]triazolo[1,5-a]pyrimidin-7-one (CAS 198953-53-6)
- 4-Amino-3-methyl-4,5-dihydro-1H-pyrazol-5-one (CAS 5256-90-6)
- 2-(Benzo[d]oxazol-2-yl)-1-(3-methylthiophen-2-yl)ethan-1-one (CAS 1152551-04-6)
- 2-Amino-N-cyclopropyl-N-((1-methylpiperidin-3-yl)methyl)acetamide (CAS 1353974-93-2)
- 4-(4-Fluorophenyl)-2-[4-(octyloxy)phenyl]pyrimidine (CAS 477870-83-0)
- Mast Cell Degranulating Peptide HR-1 (CAS 80533-94-4)
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