1-(3,4-Dichlorophenyl)butane-1,3-dione CAS 55748-84-0
| CAS No. | 55748-84-0 |
| Molecular Formula | C10H8Cl2O2 |
| Molecular Weight | 231.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(3,4-Dichlorophenyl)butane-1,3-dione (CAS 55748-84-0), molecular formula C10H8Cl2O2 and molecular weight 231.08 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C10H8Cl2O2, 1-(3,4-Dichlorophenyl)butane-1,3-dione 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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.) | 1972 |
| Halogen Content | Cl-containing |
Related Dichlorophenyl Standards
- 3-(3,4-Dichlorophenyl)dihydrofuran-2(3H)-one (CAS 103753-78-2)
- 3-(2,6-Dichlorophenyl)-2-methylacrylic acid (CAS 103753-79-3)
- 1-(2,6-Dichlorophenyl)cyclopropanecarboxylic Acid (CAS 1039931-24-2)
- 3-(2,6-Dichlorophenyl)-2-methylprop-2-enoic acid (CAS 1081758-62-4)
- 2-(2,4-Dichlorophenyl)cyclopropane-1-carboxylic acid (CAS 1157554-61-4)
- 2-(2,3-Dichlorophenyl)cyclopropane-1-carboxylic acid (CAS 1157698-55-9)
- 2-(3,5-Dichlorophenyl)cyclopropane-1-carboxylic acid (CAS 1183181-06-7)
- Methyl 2-(3,4-dichlorophenyl)acrylate (CAS 1254365-78-0)
Recommended Standards
- 1-(2,5-Dichlorophenyl)butane-1,3-dione (CAS 55748-81-7)
- 1-(3,4-Dichlorophenyl)cyclopropanecarboxylic Acid (CAS 342386-78-1)
- 1-(2,4-Dichlorophenyl)cyclopropanecarboxylic Acid (CAS 84604-70-6)
- 1-(3,4-Dichlorophenyl)imidazolidin-2-one (CAS 52420-29-8)
- (R)-N,N'-Bis[[2-(diphenylphosphino)phenyl]methyl]-[1,1'-binaphthalene]-2,2'-diamine (CAS 288093-09-4)
- tert-Butyl (2-chloro-3,4-dimethoxyphenyl)carbamate (CAS 2361634-51-5)
- 5-Bromo-1-butyldihydropyrimidine-2,4(1H,3H)-dione (CAS 709-18-2)
- 2-Ethoxy-1-naphthaleneboronic acid (CAS 148345-64-6)
- 4-Bromo-3-(dibromomethyl)benzonitrile (CAS 160313-49-5)
- 2-Cbz-amino-ethanesulfonic acid sodium salt (CAS 136027-16-2)
- trans-3-hydrazinocyclobutanol;dihydrochloride (CAS 2231663-87-7)
- Salmeterol Fluticasone Propionate Mixture (CAS 136112-01-1)
- 1-methyl-3H-imidazo[4,5-c]pyridin-2-one (CAS 40423-52-7)
- Copper Peptide ·2 acetate salt (CAS 130120-57-9)
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