6-Fluorobenzo[d]thiazol-4-ol CAS 1665288-66-3
| CAS No. | 1665288-66-3 |
| Molecular Formula | C7H4FNOS |
| Molecular Weight | 169.18 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 6-Fluorobenzo[d]thiazol-4-ol.
6-Fluorobenzo[d]thiazol-4-ol (CAS 1665288-66-3) is a high-purity analytical reference standard with the molecular formula C7H4FNOS and a molecular weight of 169.18 g/mol.
Structurally, 6-Fluorobenzo[d]thiazol-4-ol (C7H4FNOS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 169.18 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C7H4FNOS |
| Molecular Weight | 169.18 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, water (slightly soluble) |
| 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.) | 1993 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Fluorobenzo Standards
- 5-Fluorobenzo[d]thiazol-2(3H)-one (CAS 1065678-31-0)
- 4-Fluorobenzo[d]oxazole-2-thiol (CAS 1163123-40-7)
- 7-Fluorobenzo[d]thiazol-2-ol (CAS 1188047-21-3)
- 4-Fluorobenzo[d]thiazol-7-ol (CAS 1402003-96-6)
- 4-Fluorobenzo[d]isothiazol-3(2H)-one (CAS 159803-09-5)
- 5-Fluorobenzo[d]isothiazol-3(2H)-one (CAS 159803-10-8)
- 4-Fluorobenzo[d]thiazol-2(3H)-one (CAS 63754-97-2)
- 7-Fluorobenzo[d]isothiazol-4-ol (CAS 934180-40-2)
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- 3-Chlorothiophene-2,5-diboronic acid (CAS 2096332-07-7)
- Benzyl 2-chloro-2-(2-(3-(trifluoromethyl)phenyl)hydrazono)acetate (CAS 1000576-10-2)
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- Semaglutide impurity 270 (CAS CATO-C4X-2226270)
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