2,5-Dibromo-4-fluorobenzenethiol CAS 1263376-15-3
| CAS No. | 1263376-15-3 |
| Molecular Formula | C6H3Br2FS |
| Molecular Weight | 285.96 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 2,5-Dibromo-4-fluorobenzenethiol.
2,5-Dibromo-4-fluorobenzenethiol (CAS 1263376-15-3) is a high-purity analytical reference standard with the molecular formula C6H3Br2FS and a molecular weight of 285.96 g/mol.
Structurally, 2,5-Dibromo-4-fluorobenzenethiol (C6H3Br2FS) contains sulfur-containing functionality, fluorine/bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 285.96 g/mol, it falls into the medium-molecular-weight range. 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.
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 | C6H3Br2FS |
| Molecular Weight | 285.96 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F/Br-containing |
| Sulfur Atoms | 1 |
Related Dibromo Standards
- 4,5-Dibromo-2-fluorobenzenethiol (CAS 1208075-36-8)
- 2,4-Dibromo-5-fluorobenzenethiol (CAS 1208077-86-4)
- 3,5-Dibromo-4-fluorobenzenethiol (CAS 1806295-61-3)
- 1,3-Dibromo-5,5-dimethylhydantoin (CAS 77-48-5)
- 1,3-Dibromo-2-(difluoromethyl)benzene (CAS 1184298-00-7)
- 2,4-Dibromo-1-(difluoromethyl)benzene (CAS 1214352-24-5)
- 1,2-Dibromo-4-(difluoromethyl)benzene (CAS 1214358-09-4)
- 1,4-Dibromo-2-(difluoromethyl)benzene (CAS 1214383-36-4)
Recommended Standards
- 2,3-Dibromonaphthalene (CAS 13214-70-5)
- 2-bromo-1-(5-bromopyrazin-2-yl)ethan-1-one (CAS 1351334-94-5)
- 4-(Allyloxy)-2,3-dibromobut-2-en-1-ol (CAS 100362-77-4)
- 2,6-Dibromonaphthalene (CAS 13720-06-4)
- (4-Nitrophenyl)methanesulfonohydrazide (CAS 49777-56-2)
- 5-((2H-Pyrrol-2-ylidene)methyl)-2H-pyrrol-2-one (CAS 66560-68-7)
- (R)-1-Boc-3-carboxymethoxy-pyrrolidine (CAS 170097-85-5)
- Fudosteine impurity 74 (CAS CATO-C4X-144774)
- 5-Hydroxy-4-methylquinolin-2(1H)-one (CAS 131195-67-0)
- 4-(4-Bromophenyl)-5-(ethylsulfonyl)-1,2,3-thiadiazole (CAS 1707563-56-1)
- 4,5-Bis-(4-methoxy-phenyl)-oxazol-2-ylamine (CAS 77151-48-5)
- Ethyl 3-(2-(pyrrolidin-1-ylmethyl)benzoyl)benzoate (CAS 898774-32-8)
- (Gln22,Asn23)-Amyloid β-Protein (1-40) trifluoroacetate salt (CAS 374796-75-5)
- Semaglutide impurity 39 (CAS CATO-C4X-222639)
Why CATO?
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