5-(3,5-dichlorobenzamido)-2-hydroxybenzoic acid CAS 926187-11-3
| CAS No. | 926187-11-3 |
| Molecular Formula | C14H9Cl2NO4 |
| Molecular Weight | 326.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 326.13 g/mol gives 5-(3,5-dichlorobenzamido)-2-hydroxybenzoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 5-(3,5-dichlorobenzamido)-2-hydroxybenzoic acid (CAS 926187-11-3), a certified reference material (molecular formula C14H9Cl2NO4, MW 326.13 g/mol) for analytical method development and quality control.
Based on its molecular formula C14H9Cl2NO4, 5-(3,5-dichlorobenzamido)-2-hydroxybenzoic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 326.13 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C14H9Cl2NO4 |
| Molecular Weight | 326.13 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 sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related dichlorobenzamido Standards
- 4-(3,4-Dichlorobenzamido)-2-hydroxybenzoic acid (CAS 899299-08-2)
- 4-(3,5-dichlorobenzamido)-2-hydroxybenzoic acid (CAS 926196-67-0)
- 2-(2,5-Dichlorobenzamido)-5-methylbenzoic acid (CAS 1036516-96-7)
- 2-(2,4-Dichlorobenzamido)-5-methylbenzoic acid (CAS 518021-63-1)
- Methyl 2-(2,4-dichlorobenzamido)benzoate (CAS 82525-34-6)
- 3-(2,4-Dichlorobenzamido)-4-methylthiophene-2-carboxylic acid (CAS 866151-45-3)
- 3-(2,6-Dichlorobenzamido)-4-methylthiophene-2-carboxylic acid (CAS 866152-24-1)
- 1-(2,6-Dichlorobenzamido)cycloheptane-1-carboxylic acid (CAS 912763-77-0)
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- 3-Amino-5-(3-pyridyl)-1H-pyrazole (CAS 149246-87-7)
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