3-(2’-Chlorophenyl)coumarin CAS 69976-30-3
| CAS No. | 69976-30-3 |
| Molecular Formula | C15H9ClO2 |
| Molecular Weight | 256.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-(2’-Chlorophenyl)coumarin is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 3-(2’-Chlorophenyl)coumarin (CAS 69976-30-3), a certified reference material (molecular formula C15H9ClO2, MW 256.68 g/mol) for analytical method development and quality control.
Structurally, 3-(2’-Chlorophenyl)coumarin (C15H9ClO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 256.68 g/mol, it falls into the medium-molecular-weight range. 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-(2’-Chlorophenyl)coumarin 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 | C15H9ClO2 |
| Molecular Weight | 256.68 g/mol |
| Appearance | Pale yellow to 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Halogen Content | Cl-containing |
Related Chlorophenyl Standards
- 3-(4-Chlorophenyl)-2H-chromen-2-one (CAS 10465-91-5)
- 2-(4-Chlorophenyl)-1H-indene-1,3(2H)-dione (CAS 1146-99-2)
- 2-(3-Chlorophenyl)-4H-chromen-4-one (CAS 1849-61-2)
- 2-(4-Chlorophenyl)-5-methyl-1,3-dioxane-5-carboxylic acid (CAS 385381-18-0)
- 2-[(4-chlorophenyl)methyl]pentanedioic acid (CAS 24867-04-7)
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Recommended Standards
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