2-(2-Bromophenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazine CAS 1782771-76-9
| CAS No. | 1782771-76-9 |
| Molecular Formula | C12H12BrN3 |
| Molecular Weight | 278.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(2-Bromophenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazine (CAS 1782771-76-9) is a high-purity analytical reference standard with the molecular formula C12H12BrN3 and a molecular weight of 278.15 g/mol.
The molecular framework of 2-(2-Bromophenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazine (C12H12BrN3) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C12H12BrN3 |
| Molecular Weight | 278.15 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 | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related Bromophenyl Standards
- 4-(2-Bromophenyl)-1-cyclopropyl-1H-imidazol-5-amine (CAS 1251221-35-8)
- 3-(3-Bromophenyl)-5,6,7,8-tetrahydroimidazo[1,2-a]pyrazine (CAS 1416438-40-8)
- 3-(4-Bromophenyl)-5,6,7,8-tetrahydroimidazo[1,2-a]pyrazine (CAS 1416439-89-8)
- 2-(4-Bromophenyl)-5,6,7,8-tetrahydroimidazo[1,2-a]pyrimidine (CAS 143696-99-5)
- 2-(4-Bromophenyl)-5,6,7,8-tetrahydroimidazo[1,2-a]pyrazine (CAS 1447606-40-7)
- 2-(3-Bromophenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazine (CAS 1536883-81-4)
- 2-(4-Bromophenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazine (CAS 1781944-44-2)
- 3-(2-Bromophenyl)-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridine (CAS 916423-54-6)
Recommended Standards
- (4-Iodo-2,3-dimethylphenyl)(methyl)sulfane (CAS 2635937-25-4)
- 3-(5-Bromopyridin-3-yl)-4,5,6,7-tetrahydro-1H-indazole (CAS 1707609-31-1)
- (4-Iodo-2,5-dimethylphenyl)(methyl)sulfane (CAS 2586126-72-7)
- 2-Isopropoxy-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (CAS 1572455-46-9)
- ((1S,2S,5R)-3-Methyl-3-azabicyclo[3.1.0]hexan-2-yl)methanol (CAS 2417920-40-0)
- 3-Bromo-5-chlorophenylsulfonyl chloride (CAS 1049026-36-9)
- Hydroquinine 4-methyl-2-quinolyl ether (CAS 135096-79-6)
- 2-Bromo-5-(2-bromoethoxy)pyridine (CAS 1660157-37-8)
- (9H-Fluoren-9-yl)methyl (2-mercaptoethyl)carbamate (CAS 152835-00-2)
- 3-cyclopropylmorpholine Hydrochloride (CAS 1260667-05-7)
- tert-butyl 2-(pyridin-2-yl)piperazine-1-carboxylate (CAS 886770-96-3)
- 1-(2-((4-Nitrobenzyl)thio)-4,5-dihydro-1H-imidazol-1-yl)-2-phenoxypropan-1-one (CAS 851802-45-4)
- 1-(Prop-2-en-1-yl)cyclopentane-1-carbaldehyde (CAS 92207-70-0)
- Tirzepatide Impurity 25 X TFA Salt (CAS CATO-C4X-324025)
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