5-Methoxy-1-(5-methylthiophen-2-yl)pentane-1,3-dione CAS 1152583-11-3
| CAS No. | 1152583-11-3 |
| Molecular Formula | C11H14O3S |
| Molecular Weight | 226.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 5-Methoxy-1-(5-methylthiophen-2-yl)pentane-1,3-dione is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 226.29 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
5-Methoxy-1-(5-methylthiophen-2-yl)pentane-1,3-dione (CAS 1152583-11-3), molecular formula C11H14O3S and molecular weight 226.29 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C11H14O3S |
| Molecular Weight | 226.29 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Sulfur Atoms | 1 |
Related Methoxy Standards
- 5-Methoxy-2-methyl-1-(thiophen-2-yl)pentane-1,3-dione (CAS 1250722-17-8)
- 2-Methoxy-5-(propylthio)benzoic acid (CAS 1707603-00-6)
- 4-Methoxy-2-(piperidin-1-yl)thiazole-5-carbaldehyde (CAS 919016-57-2)
- 1-(4'-Methoxy-[1,1'-biphenyl]-4-yl)ethan-1-one (CAS 13021-18-6)
- 1-{6-methoxy-[1,1'-biphenyl]-3-yl}ethan-1-one (CAS 142500-00-3)
- 7-Methoxy-1,9-dimethyl-9H-pyrido[3,4-b]indole (CAS 143502-37-8)
- 3'-Methoxy-2-methyl-[1,1'-biphenyl]-4-carbaldehyde (CAS 1506675-64-4)
- 4'-Methoxy-2-methyl-[1,1'-biphenyl]-4-carbaldehyde (CAS 1509012-61-6)
Recommended Standards
- 2-((2,3-Dihydroxypropyl)thio)-1-phenylethan-1-one (CAS 115120-28-0)
- 2-((2-Hydroxyethyl)thio)-1-(4-methoxyphenyl)ethan-1-one (CAS 1152910-36-5)
- 4-Phenoxybenzo[b]thiophene (CAS 1121585-31-6)
- 1-(2,4-Dihydroxyphenyl)-2-(propylthio)ethan-1-one (CAS 1157208-30-4)
- 1-(Thiazol-4-yl)cyclopropane-1-carboxylic acid (CAS 1542332-02-4)
- n'-Hydroxy-3-((methylamino)methyl)benzimidamide (CAS 1344819-16-4)
- N-(3-Chloro-4-methoxyphenyl)-1-[6-(trifluoromethyl)pyrimidin-4-yl]piperidine-4-carboxamide (CAS 1775546-35-4)
- 1-(4-Methylbenzyl)-1H-indole-5-carbaldehyde (CAS 944893-71-4)
- 1-Aminohex-5-yn-2-ol (CAS 1480857-11-1)
- 4-(2,5-Dimethylbenzyl)piperidin-4-ol (CAS 1225995-21-0)
- 3-(Difluoromethyl)-6-hydroxy-4-iodopicolinonitrile (CAS 1806983-90-3)
- Methyl 6-(chloromethyl)nicotinate (CAS 49668-90-8)
- 3-((5-((4-Aminopiperidin-1-yl)methyl)pyrrolo[2,1-f][1,2,4]triazin-4-yl)amino)-5-(2-isopropyl-2H-tetrazol-5-yl)phenol, >98% (HPLC) (CAS 1699861-37-4)
- Acetyl-Tau Peptide (273-284) amide trifluoroacetate salt (CAS 1684399-52-7)
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