1-(5-Butyl-4-chlorothiophen-2-yl)ethan-1-one CAS 1399661-95-0
| CAS No. | 1399661-95-0 |
| Molecular Formula | C10H13ClOS |
| Molecular Weight | 216.73 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 1-(5-Butyl-4-chlorothiophen-2-yl)ethan-1-one (CAS 1399661-95-0), a certified reference material (molecular formula C10H13ClOS, MW 216.73 g/mol) for analytical method development and quality control.
The molecular framework of 1-(5-Butyl-4-chlorothiophen-2-yl)ethan-1-one (C10H13ClOS) is characterized by sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C10H13ClOS |
| Molecular Weight | 216.73 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Butyl Standards
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Recommended Standards
- 1-(4-Chloro-5-isobutylthiophen-2-yl)ethanone (CAS 1399661-28-9)
- 5-Chloro-2-isobutoxybenzenethiol (CAS 1443310-52-8)
- 3-Chloro-4-isobutoxybenzenethiol (CAS 1379356-25-8)
- (5-Chloro-2-propoxyphenyl)(methyl)sulfane (CAS 1443355-73-4)
- 3-Bromo-2-(((4,6-dimethylpyrimidin-2-yl)thio)methyl)imidazo[1,2-a]pyridine (CAS 313403-98-4)
- 6-Amino-4-bromo-3-chloro-2-fluorobenzoic acid (CAS 1698028-25-9)
- (S)-2-amino-N-(2-amino-2-oxoethyl)-3-methylbutanamide hydrochloride (CAS 36920-56-6)
- (1-((1H-Indazol-3-yl)methyl)piperidin-2-yl)methanamine (CAS 1707395-59-2)
- tert-Butyl 3-cyclopropylacrylate (CAS 344587-35-5)
- (5-Chloro-1H-pyrrolo[2,3-c]pyridin-2-yl)methanol (CAS 867036-42-8)
- 5-Methyl-N-(5-nitrothiazol-2-yl)isoxazole-4-carboxamide (CAS 738531-66-3)
- N-Cyclohexyl-N-methyl-2,3-dihydrobenzo[b][1,4]dioxine-6-sulfonamide (CAS 726150-16-9)
- 3-Methyl-N-(1-(5-methylthiophen-2-yl)ethyl)butan-1-amine (CAS 1019625-94-5)
- Tirzepatide Impurity 18 (CAS CATO-C4X-324018)
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