7-Bromo-4-fluorobenzo[b]thiophene CAS 324768-96-9
| CAS No. | 324768-96-9 |
| Molecular Formula | C8H4BrFS |
| Molecular Weight | 231.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 7-Bromo-4-fluorobenzo[b]thiophene.
7-Bromo-4-fluorobenzo[b]thiophene (CAS 324768-96-9), molecular formula C8H4BrFS and molecular weight 231.08 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to sulfur-containing functionality, fluorine/bromine substitution, an aromatic ring system, 7-Bromo-4-fluorobenzo[b]thiophene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 231.08 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.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C8H4BrFS |
| Molecular Weight | 231.08 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 3-Bromo-5-fluorobenzo[b]thiophene (CAS 138993-21-2)
- 6-Bromo-5-fluorobenzo[b]thiophene (CAS 1404119-50-1)
- 6-bromo-7-fluoro-benzothiophene (CAS 1427437-51-1)
- 3-Bromo-7-fluorobenzo[b]thiophene (CAS 1456888-58-6)
- 4-bromo-5-fluoro-1-benzothiophene (CAS 826995-66-8)
- 4-Bromo-7-fluorobenzo[b]thiophene (CAS 360576-07-4)
- 6-Bromo-4-fluorobenzo[b]thiophene (CAS 826995-63-5)
- (R)-2-Bromo-1-(3-methoxyphenyl)ethan-1-ol (CAS 100306-27-2)
Recommended Standards
- 7-Chloro-2-(3-chloropropyl)-2H-pyrazolo[4,3-d]pyrimidine (CAS 923283-13-0)
- 6,7-Dichloro-3-methyl-3,4-dihydroquinoxalin-2(1H)-one (CAS 73148-15-9)
- 7-Chloro-6-(2-chloroethyl)-5-methyl-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 62053-05-8)
- 5,7-Dichloro-3-isopropyl-1H-pyrazolo[4,3-d]pyrimidine (CAS 607729-11-3)
- N-(4-Methylpyridin-2-yl)-6-(piperazin-1-yl)pyridazin-3-amine (CAS 1706446-74-3)
- 3-(Hydroxymethyl)-5-(trifluoromethyl)phenol (CAS 1261611-31-7)
- 5-Bromo-6-hydroxy-2-methylpyrimidin-4(1H)-one (CAS 4722-76-3)
- Methyl 2-(2-methyl-4-oxoquinolin-1(4H)-yl)acetate (CAS 1171940-71-8)
- 6-Fluoro-4-nitropyridine-2-sulfonyl chloride (CAS 1393547-25-5)
- 6-Bromo-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one (CAS 96555-35-0)
- 4-Amino-2-(difluoromethyl)pyridine (CAS 1446509-58-5)
- 25068-26-2 Poly(4-methyl-1-pentene) 1-Pentene, 4-methyl-, homopolymer (CAS 25068-26-2)
- 1-(Bromomethyl)-3-chloro-5-fluorobenzene (CAS 493024-39-8)
- D-[Ser]8-Semaglutide (CAS CATO-CPTD788632)
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