(E)-3-(3-Chlorophenyl)acrylaldehyde CAS 56578-37-1
| CAS No. | 56578-37-1 |
| Molecular Formula | C9H7ClO |
| Molecular Weight | 166.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 166.60 g/mol gives (E)-3-(3-Chlorophenyl)acrylaldehyde distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(E)-3-(3-Chlorophenyl)acrylaldehyde (CAS 56578-37-1) is a high-purity analytical reference standard with the molecular formula C9H7ClO and a molecular weight of 166.60 g/mol.
(E)-3-(3-Chlorophenyl)acrylaldehyde (C9H7ClO) contains a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C9H7ClO |
| Molecular Weight | 166.60 g/mol |
| Appearance | Off-white to pale 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | Cl-containing |
Related E Standards
- 3-(4-Chlorophenyl)acrylaldehyde (CAS 1075-77-0)
- (E)-3-(2-Chlorophenyl)acrylaldehyde (CAS 138555-57-4)
- 1-(3-Chlorophenyl)prop-2-en-1-one (CAS 160388-09-0)
- 3-(2-Chlorophenyl)acrylaldehyde (CAS 1794-45-2)
- 1-(2-Chlorophenyl)prop-2-yn-1-ol (CAS 19115-29-8)
- 1-(2-Chlorophenyl)prop-2-en-1-one (CAS 89638-23-3)
- 1-(3-Chlorophenyl)-2-propyn-1-ol (CAS 29805-12-7)
- 1-(4-Chlorophenyl)-2-propyn-1-ol (CAS 29805-11-6)
Recommended Standards
- (5-Chloro-3-fluorothiophen-2-yl)methanol (CAS 2756810-18-9)
- (E)-3-Chloro-1-phenylprop-2-en-1-one (CAS 3306-07-8)
- (2S,3R)-Methyl 2-chloro-3-methoxybutanoate (CAS 1932371-25-9)
- (Z)-2-Chloro-3-phenylacrylaldehyde (CAS 33603-89-3)
- 6-(4-Chlorophenyl)imidazo[2,1-b]thiazole-5-carbaldehyde (CAS 82588-41-8)
- (3-hydroxy-1-naphthyl) acetate (CAS 93182-35-5)
- 3-chloro-1,2-benzoxazole-5-sulfonyl chloride (CAS 869885-72-3)
- (1H-imidazol-2-yl)(3-(trifluoromethyl)phenyl)methanone (CAS 62457-93-6)
- 6-Bromo-3-methoxy-1-methyl-2-oxo-1,2-dihydropyridine-4-carboxylic acid (CAS 1429204-41-0)
- Ethyl 1-(6-chloro-2-oxo-4-phenyl-1H-quinolin-3-yl)piperidine-3-carboxylate (CAS 669754-77-2)
- 2-(3-Methoxybenzoyl)-6-methoxypyridine (CAS 1187166-92-2)
- (1-Phenethylpiperidin-3-yl)methanamine (CAS 725212-69-1)
- LCZ-696 Impurity 57 (CAS 149709-58-0)
- Peptide Impurity 06 (CAS CATO-CPTD788806)
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