4’-Chlorobiphenyl-4-acetic Acid CAS 5525-72-4
| CAS No. | 5525-72-4 |
| Molecular Formula | C14H11ClO2 |
| Molecular Weight | 246.69 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4’-Chlorobiphenyl-4-acetic Acid (CAS 5525-72-4), molecular formula C14H11ClO2 and molecular weight 246.69 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4’-Chlorobiphenyl-4-acetic Acid (C14H11ClO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 246.69 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).
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 | C14H11ClO2 |
| Molecular Weight | 246.69 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
Related Chlorobiphenyl Standards
- 4’-Chlorobiphenyl-3-carboxylic Acid (CAS 4655-10-1)
- 3’-Chlorobiphenyl-4-boronic Acid (CAS 1025496-32-5)
- 3’-Chlorobiphenyl-3-boronic Acid (CAS 1107603-42-8)
- 5-Chlorobiphenyl-3-ylboronic acid (CAS 1186403-21-3)
- 4-Chlorobiphenyl-2-boronic acid (CAS 544678-60-6)
- 1-(3-Chlorobiphenyl-3-yl)-ethylamine (CAS 1247711-55-2)
- (4-Chlorobiphenyl-2-yl)-acetonitrile (CAS 1357575-73-5)
- 4’-Chlorobiphenyl-3-carbaldehyde (CAS 139502-80-0)
Recommended Standards
- 4’-(4-Chlorophenoxy)acetophenone (CAS 41150-48-5)
- 4-Amino-N-(2-chlorophenyl)benzamide (CAS 888-79-9)
- 4-[(2-Chlorobenzyl)oxy]benzaldehyde (CAS 70627-21-3)
- 4-Amino-N-(3-chlorophenyl)benzamide (CAS 888-80-2)
- 1-(4-(Tert-butoxy)phenyl)propan-2-one (CAS 1368447-50-0)
- 1-([1,1'-biphenyl]-2-yl)-2,2,2-trifluoroethan-1-amine (CAS 843608-49-1)
- 5-Hydroxy-2,2',4,4'-tetrabromodiphenylether (CAS 602326-30-7)
- tert-Butyl 4-(1,3-difluoropropan-2-yl)piperazine-1-carboxylate (CAS 1380170-91-1)
- 2-(3-Bromo-4-ethylphenyl)propan-2-ol (CAS 2883771-07-9)
- 5-(Bromomethyl)-7-methoxy-2H-chromen-2-one (CAS 54745-57-2)
- 3,12-Diaza-6,9-diazoniadispiro[5.2.5.2]hexadecane (CAS 183-88-0)
- Bicyclo[2.2.1]heptanemethanol (CAS 69102-73-4)
- Ethyl 3-butyl-3-ethyloxirane-2-carboxylate (CAS 1468602-46-1)
- (D-Ala2)-Gastric Inhibitory Polypeptide (human) trifluoroacetate salt (CAS 444073-04-5)
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