rel-(3R,4S)-4-(Bromomethyl)-1,1-difluorospiro[2.2]pentane CAS 2838097-85-9
| CAS No. | 2838097-85-9 |
| Molecular Formula | C6H7BrF2 |
| Molecular Weight | 197.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of rel-(3R,4S)-4-(Bromomethyl)-1,1-difluorospiro[2.2]pentane is closely related to fluorine/bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
rel-(3R,4S)-4-(Bromomethyl)-1,1-difluorospiro[2.2]pentane (CAS 2838097-85-9), molecular formula C6H7BrF2 and molecular weight 197.02 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of rel-(3R,4S)-4-(Bromomethyl)-1,1-difluorospiro[2.2]pentane (C6H7BrF2) is characterized by fluorine/bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 | C6H7BrF2 |
| Molecular Weight | 197.02 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 2003 |
| Halogen Content | F/Br-containing |
Recommended Standards
- Chlorothalonil Impurity 5 (CAS 19846-21-0)
- 4-Bromo-1H-pyrrolo[3,2-c]pyridine (CAS 1000342-68-6)
- 5-Bromo-1,1-difluorospiro[2.3]Hexane (CAS 2306265-27-8)
- 6-Bromo-5-azaindole, 97% (CAS 1000342-71-1)
- (5-{4-[(tert-Butoxy)carbonyl]piperazin-1-yl}-2-fluorophenyl)boronic acid (CAS 2377606-00-1)
- Tert-butyl ((3R,4S)-4-(difluoromethyl)pyrrolidin-3-yl)carbamate (CAS 2278296-49-2)
- tert-Butyl 7’-fluoro-2’,4’-dihydro-1’H-spiro[piperidine-4,3’-quinoline]-1-carboxylate (CAS 1402232-83-0)
- Ethyl 3-amino-4-[(tetrahydro-2-furanylmethyl)-amino]benzoate (CAS 1220016-91-0)
- 4-(Aminomethyl)benzimidamide Dihydrochloride (CAS 217313-79-6)
- 1-(Triethoxysilyl)methanamine 18306-83-7 Aminomethyltriethoxysilane (CAS 18306-83-7)
- N-Nitroso Meropenem (CAS CATO-C4X-130918)
- 2-(P-tolyl)aziridine (CAS 73475-24-8)
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- Ephrin-A2-Selective YSA-Peptide (CAS 532441-10-4)
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