8-Bromo-6-fluoro-2h-chromene-3-sulfonyl chloride CAS 1235439-52-7
| CAS No. | 1235439-52-7 |
| Molecular Formula | C9H5BrClFO3S |
| Molecular Weight | 327.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
8-Bromo-6-fluoro-2h-chromene-3-sulfonyl chloride (CAS 1235439-52-7), molecular formula C9H5BrClFO3S and molecular weight 327.55 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine/bromine substitution, an aromatic ring system, 8-Bromo-6-fluoro-2h-chromene-3-sulfonyl chloride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 327.55 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H5BrClFO3S |
| Molecular Weight | 327.55 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F/Cl/Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 6-Bromo-8-fluoro-2h-chromene-3-sulfonyl chloride (CAS 1235439-15-2)
- 3-(5-(4-Bromo-2-chlorophenyl)furan-2-yl)acrylic acid (CAS 874592-37-7)
- Ethyl 3-bromo-4-(chlorosulfonyl)benzoate (CAS 1000932-93-3)
- Methyl 3-bromo-4-[(chlorosulfonyl)methyl]benzoate (CAS 1061617-77-3)
- Ethyl 4-Bromo-3-(chlorosulfonyl)benzoate (CAS 1155911-23-1)
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- Methyl 2-(5-bromo-2-(chlorosulfonyl)phenyl)acetate (CAS 1403387-05-2)
- Ethyl 5-bromo-2-(chlorosulfonyl)benzoate (CAS 1496390-46-5)
Recommended Standards
- 1-Hexadecanaminium, N-(carboxymethyl)-N,N-dimethyl-, inner salt (CAS 693-33-4)
- N-(2-Hydroxyethyl)stearamide (CAS 111-57-9)
- Octadecylglycine (CAS 35168-40-2)
- ethyl 2-(Dimethylamino)hexadecanoate (CAS 10606-34-5)
- Methyl 5-bromo-4-chloro-2-methoxybenzoate (CAS 951885-11-3)
- tert-Butyl 2-iodo-6-((trimethylsilyl)ethynyl)-pyridin-3-yl carbonate (CAS 1142192-40-2)
- 1-(6-Methoxypyridazin-3-yl)-5-(trifluoromethyl)-1h-pyrazole-4-carboxylic acid (CAS 1013794-57-4)
- (Chloromethyl)cycloheptane (CAS 99969-52-5)
- p-DANPHOS (CAS 1289463-79-1)
- 4-(1-tert-butoxycarbonylazetidin-3-yl)but-2-ynoic acid (CAS 2416243-66-6)
- (S)-4-chloro-5-fluoro-2,3-dihydro-1H-inden-1-amine (CAS 1213610-72-0)
- Hydantoic Acid-13C,15N Ethyl Ester (CAS 1189492-16-7)
- 2-(6-Bromopyridin-2-yl)acetaldehyde (CAS 1211524-20-7)
- Tirzepatide Impurity 13 (CAS CATO-C4X-324013)
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