2,3-Dichloro-5-methylcinnamic acid CAS 1807418-75-2
| CAS No. | 1807418-75-2 |
| Molecular Formula | C10H8Cl2O2 |
| Molecular Weight | 231.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2,3-Dichloro-5-methylcinnamic acid is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 2,3-Dichloro-5-methylcinnamic acid (CAS 1807418-75-2), a certified reference material (molecular formula C10H8Cl2O2, MW 231.08 g/mol) for analytical method development and quality control.
Based on its molecular formula C10H8Cl2O2, 2,3-Dichloro-5-methylcinnamic acid contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 231.08 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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 | C10H8Cl2O2 |
| Molecular Weight | 231.08 g/mol |
| Appearance | Off-white to pale 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Cl-containing |
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Recommended Standards
- 3,6-Dichloro-2-methylcinnamic acid (CAS 1807417-17-9)
- 2,5-Dichloro-4-methylcinnamic acid (CAS 1807418-86-5)
- 2,4-Dichloro-6-methylcinnamic acid (CAS 1807415-79-7)
- 2,6-Dichloro-3-methylcinnamic acid (CAS 1807439-68-4)
- 4-Bromo-5-ethyl-2-methylpyridine (CAS 98488-99-4)
- (4R,5R)-5-((S)-1-Hydroxyethyl)-2,2-dimethyl-1,3-dioxolane-4-carbaldehyde (CAS 164514-45-8)
- (S)-1-(2,5-Dichlorothiophen-3-yl)ethan-1-ol (CAS 1567870-68-1)
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