3,4-Dibromo-1-(tert-Butyl)-1H-pyrazole CAS 1820619-93-9
| CAS No. | 1820619-93-9 |
| Molecular Formula | C7H10Br2N2 |
| Molecular Weight | 281.98 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C7H10Br2N2, 3,4-Dibromo-1-(tert-Butyl)-1H-pyrazole contains a nitrile group, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 281.98 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.
3,4-Dibromo-1-(tert-Butyl)-1H-pyrazole (CAS 1820619-93-9) is a high-purity analytical reference standard with the molecular formula C7H10Br2N2 and a molecular weight of 281.98 g/mol.
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), 3,4-Dibromo-1-(tert-Butyl)-1H-pyrazole 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 | C7H10Br2N2 |
| Molecular Weight | 281.98 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Dibromo Standards
- 4,5-Dibromo-2-tert-butyl-1H-imidazole (CAS 1188301-72-5)
- 4,5-Dibromo-1-isopropyl-2-methyl-1H-imidazole (CAS 1622840-42-9)
- 2,4-Dibromo-3-methylbenzenethiol (CAS 1349709-07-4)
- 1,3-dibromo-5-(methylthio)benzene (CAS 141938-37-6)
- 1,3-Dibromo-2-(methylthio)benzene (CAS 301151-74-6)
- 2,6-Dibromo-3-fluoro-p-xylene (CAS 1160574-44-6)
- 4,5-Dibromo-2-ethylpyridazin-3(2H)-one (CAS 103977-71-5)
- 3,5-Dibromo-6-methoxypyridin-2-amine (CAS 1261269-56-0)
Recommended Standards
- 2-Amino-3,5-dibromobenzonitrile 3,5-DIBROMO-2-AMINOBENZONITRILE 3,5-DIBROMOANTHRANILONITRILE 68385-95-5 AS02576 BUTTPARK 37\12-53 OTAVA-BB 7110952681 (CAS 68385-95-5)
- 5-Bromo-4-(bromomethyl)-1-isopropyl-1H-pyrazole (CAS 1374257-92-7)
- 2,2'-(Ethane-1,1-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) (CAS 1227056-25-8)
- 2,4-Dichloro-3-difluoromethoxy-6-(trifluoromethyl)pyridine (CAS 1228897-92-4)
- 2-((4-Methylpiperazin-1-yl)methyl)pyridin-3-ol (CAS 95380-59-9)
- 8-Benzyl 3-ethyl 2,8-diazaspiro[4.5]decane-3,8-dicarboxylate (CAS 2306261-41-4)
- Methyl 4-hydroxythieno[3,2-d]pyrimidine-7-carboxylate (CAS 1269667-38-0)
- 4-Bromo-1H-pyrrolo[2,3-c]pyridine-3-sulfonyl chloride (CAS 2138263-29-1)
- N-(4-Methoxyphenyl)-2-oxo-1,2-dihydroquinoline-3-carboxamide (CAS 62033-70-9)
- 4-ethoxy-5H,6H,7H,8H-pyrido[4,3-d]pyrimidine (CAS 1258652-32-2)
- 1-(5-Chloro-2,3-dihydrobenzofuran-7-yl)ethan-1-amine hydrochloride (CAS 2137690-77-6)
- (4,4-dimethylcyclohexyl)methanol (CAS 1394042-59-1)
- Enarodustat Impurity 19 (CAS CATO-C4X-322819)
- Cyclolinopeptide B (CAS 193139-41-2)
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