5-Chloro-N-(4-chlorophenyl)-2-hydroxybenzamide CAS 1147-98-4
| CAS No. | 1147-98-4 |
| Molecular Formula | C13H9Cl2NO2 |
| Molecular Weight | 282.12 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.
5-Chloro-N-(4-chlorophenyl)-2-hydroxybenzamide (CAS 1147-98-4), molecular formula C13H9Cl2NO2 and molecular weight 282.12 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 5-Chloro-N-(4-chlorophenyl)-2-hydroxybenzamide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 282.12 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
Physical & Chemical Properties
| Molecular Formula | C13H9Cl2NO2 |
| Molecular Weight | 282.12 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
- 5-Chloro-1-(4-chlorobenzyl)-6-oxo-1,6-dihydropyridine-3-carbaldehyde (CAS 1033463-21-6)
- 5-chloro-N-(2-chlorophenyl)-2-hydroxybenzamide (CAS 6626-92-2)
- 5-Chloro-N-(3-chlorophenyl)-2-hydroxybenzamide (CAS 22203-98-1)
- 5-Chloro-N-(4-chlorobenzyl)pyrazine-2-carboxamide (CAS 1426690-31-4)
- 6-Chloro-N-(4-chlorobenzyl)pyrazine-2-carboxamide (CAS 1426690-35-8)
- 5-Chloro-N-(2-chlorobenzyl)pyrazine-2-carboxamide (CAS 1438853-89-4)
- 5-Chloro-N-(3-chlorobenzyl)pyrazine-2-carboxamide (CAS 1438853-90-7)
- 4-Chloro-N'-(6-chloropyridin-2-yl)benzohydrazide (CAS 478063-96-6)
Recommended Standards
- {3-iodoimidazo[1,2-a]pyridin-7-yl}methanol (CAS 1036990-66-5)
- 2-(2-Fluoro-4,5-dimethoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1150271-76-3)
- methyl 4-iodo-2-methyl-benzoate (CAS 103440-53-5)
- Methyl 4-(2,3-dichloropyridin-4-yl)benzoate (CAS 1160474-76-9)
- 2α-Hydroxymethylethisterone (CAS 2787-03-3)
- 2-Fluoro-6-hydroxybenzamide (CAS 160748-95-8)
- 5-(2,6-Dichlorophenyl)furan-2-carbaldehyde (CAS 94078-34-9)
- Methyl N-cyanobenzimidate (CAS 6041-23-2)
- 1-(4-Cyclohexylphenyl)-3-((4-ethoxyphenyl)amino)propan-1-one (CAS 883794-38-5)
- 3-(4-Morpholinyl)-3-oxopropanoic acid (CAS 105397-92-0)
- 2-Isopropylquinoxaline (CAS 80360-35-6)
- (S)-1-(2-Nitrophenyl)ethanamine hydrochloride (CAS 1113041-80-7)
- 3-(2-Hydroxyphenyl)propanehydrazide (CAS 24535-13-5)
- Semaglutide impurity 60 (CAS CATO-C4X-222660)
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