3-Chloro-4-(2-propynyloxy)benzaldehyde CAS 443291-07-4
| CAS No. | 443291-07-4 |
| Molecular Formula | C10H7ClO2 |
| Molecular Weight | 194.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-Chloro-4-(2-propynyloxy)benzaldehyde.
3-Chloro-4-(2-propynyloxy)benzaldehyde (CAS 443291-07-4) is a high-purity analytical reference standard with the molecular formula C10H7ClO2 and a molecular weight of 194.61 g/mol.
Based on its molecular formula C10H7ClO2, 3-Chloro-4-(2-propynyloxy)benzaldehyde 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 194.61 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3-Chloro-4-(2-propynyloxy)benzaldehyde meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C10H7ClO2 |
| Molecular Weight | 194.61 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 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
Related Chloro Standards
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- 2-chloro-6-(prop-2-yn-1-yloxy)benzaldehyde (CAS 1092306-71-2)
- Methyl 2-Chloro-4-ethynylbenzoate (CAS 1224640-19-0)
- 2-Chloro-4-(furan-2-yl)phenol (CAS 1261897-06-6)
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Recommended Standards
- 3-(chloromethyl)-2H-chromen-2-one (CAS 98994-33-3)
- 3-Chloropropane-1,2-diyl diacetate (CAS 869-50-1)
- 2H-Chromene-3-carbonyl chloride (CAS 41873-72-7)
- 3-Methyl-benzofuran-2-carbonyl chloride (CAS 2256-86-2)
- n-[(2-bromophenyl)methyl]-2-chloro-N-methylacetamide (CAS 851169-51-2)
- Methyl 3-(thiophen-2-yl)propanoate (CAS 16862-05-8)
- 1-(4-(Methylthio)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethan-1-one (CAS 1259443-62-3)
- 3-Methyl-4-vinyl-4H-1,2,4-triazole (CAS 113444-42-1)
- 2-(2,3,4-trifluorophenyl)acetaldehyde (CAS 1130309-58-8)
- 4-(4-Butylphenyl)-5-[1-methyl-3-(trifluoromethyl)-1H-thieno[2,3-c]pyrazol-5-yl]-4H-1,2,4-triazole-3-thiol (CAS 865659-87-6)
- 4H-pyrrolo[2,3-d][1,3]thiazole-5-carbaldehyde (CAS 1936344-95-4)
- (S)-1-(azetidin-3-yl)-3-fluoropyrrolidine (CAS 1257294-17-9)
- Adenosine 5-diphosphate potassium salt (CAS 72696-48-1)
- Semaglutide impurity 43 (CAS CATO-C4X-222643)
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