4-(4-Chlorophenyl)but-3-yn-2-one CAS 39180-26-2
| CAS No. | 39180-26-2 |
| Molecular Formula | C10H7ClO |
| Molecular Weight | 178.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 178.61 g/mol gives 4-(4-Chlorophenyl)but-3-yn-2-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-(4-Chlorophenyl)but-3-yn-2-one (CAS 39180-26-2) is a high-purity analytical reference standard with the molecular formula C10H7ClO and a molecular weight of 178.61 g/mol.
Based on its molecular formula C10H7ClO, 4-(4-Chlorophenyl)but-3-yn-2-one contains 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 178.61 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4-(4-Chlorophenyl)but-3-yn-2-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C10H7ClO |
| Molecular Weight | 178.61 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 |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | Cl-containing |
Related Chlorophenyl Standards
- 2-(4-chlorophenyl)furan (CAS 17221-37-3)
- 1-(2-Chlorophenyl)-2,3-butadien-1-one (CAS 196952-95-1)
- 1-(3-Chlorophenyl)-2,3-butadien-1-one (CAS 196952-98-4)
- 1-(4-Chlorophenyl)-2,3-butadien-1-one (CAS 196953-02-3)
- 4-(4-Chlorophenyl)-1H-pyrazole (CAS 111016-47-8)
- 4-(3-Chlorophenyl)-1h-pyrazole (CAS 1196152-63-2)
- 1-(2-Chlorophenyl)-1H-imidazole (CAS 51581-50-1)
- 1-(2-Chlorophenyl)-1H-pyrazole (CAS 917508-36-2)
Recommended Standards
- 3-Chloronaphthalen-2-ol (CAS 56541-64-1)
- 5-Chloronaphthalen-1-ol (CAS 20816-76-6)
- 3-Chloronaphthalen-1-ol (CAS 51877-58-8)
- 6-Chloro-2-methyl-1H-inden-1-one (CAS 5728-96-1)
- 2-Aminobutane-1,3-diol (CAS 31066-40-7)
- 5,7-Difluoro-1H-Benzimidazole 3-Oxide (CAS 191847-81-1)
- 2-(4-Chlorophenyl)-2-cyclopropylacetic acid (CAS 24438-45-7)
- 3-(Chloromethyl)-7-cyclopropyl-[1,2,4]triazolo[4,3-a]pyrazin-8(7H)-one (CAS 1707375-69-6)
- (2,6-Dimethoxy-4-methylphenyl)methanol (CAS 875664-51-0)
- N-Nitroso Mefloquine (CAS CATO-C4X-29691)
- 2-Phenylimidazole-4-carboxylic Acid Hydrate (CAS 1052410-02-2)
- 1-Chloro-2-Iodo-1,1,2-Trifluoroethane (CAS 354-26-7)
- Gabapentin Impurity 17 (CAS CATO-C4X-165417)
- Tirzepatide Impurity 26 X TFA Salt (CAS CATO-C4X-324026)
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- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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