5-Bromo-1-ethyl-4-iodo-1H-pyrazole CAS 2739830-15-8
| CAS No. | 2739830-15-8 |
| Molecular Formula | C5H6BrIN2 |
| Molecular Weight | 300.92 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-Bromo-1-ethyl-4-iodo-1H-pyrazole is closely related to a nitrile group, bromine/iodine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5-Bromo-1-ethyl-4-iodo-1H-pyrazole (CAS 2739830-15-8), molecular formula C5H6BrIN2 and molecular weight 300.92 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, bromine/iodine substitution, 5-Bromo-1-ethyl-4-iodo-1H-pyrazole is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 300.92 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.
CATO manufactures 5-Bromo-1-ethyl-4-iodo-1H-pyrazole under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C5H6BrIN2 |
| Molecular Weight | 300.92 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 |
| 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.) | 2002 |
| Halogen Content | Br/I-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
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- 4-bromo-5-iodo-1,3-dimethyl-1H-pyrazole (CAS 94989-97-6)
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Recommended Standards
- 2,3-Dibromo-6-(difluoromethyl)-4-methylpyridine (CAS 1804714-91-7)
- 4,5,6,7-Tetrachloro-2-hydroxy-isoindole-1,3-dione 85342-65-0 KS-0000191P (CAS 85342-65-0)
- 2,5-Dibromo-3-(difluoromethyl)-4-methylpyridine (CAS 1805043-86-0)
- Cis-vaccenoylchloride (CAS 95548-26-8)
- 2-Oxo-2-(pyridin-2-yl)acetaldehyde (CAS 22109-63-3)
- N-(cyclobutylmethyl)-N-methylamine,HCl (CAS 67579-87-7)
- 3-Bromopyrazolo[1,5-a]pyrimidine-2-carboxylic acid (CAS 832740-60-0)
- 4-(Difluoromethyl)-5-hydroxy-3-nitropyridine-2-sulfonamide (CAS 1807004-09-6)
- Methyl 4-(bromomethyl)-3-iodobenzoate (CAS 229028-10-8)
- tert-Butyl (S)-(5-amino-6-oxo-6-(4-(pyridin-4-yl)piperazin-1-yl)hexyl)carbamate, tetrafluoroborate salt (CAS 862805-22-9)
- Ethyl 2-{3-[(tert-Butyldimethylsilyl)oxy]cyclobutylidene}acetate (CAS 1638764-67-6)
- 1-(3-hydroxy-4-pyridyl)ethanone (CAS 30152-05-7)
- 2-{2-[(2-aminoethyl)(methyl)amino]ethoxy}ethan-1-ol (CAS 1249826-70-7)
- Peptide YY (3-36) (canine, mouse, porcine, rat) trifluoroacetate salt (CAS 126339-09-1)
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