5-Isopropylthiophene-3-carbonyl chloride CAS 1160248-86-1
| CAS No. | 1160248-86-1 |
| Molecular Formula | C8H9ClOS |
| Molecular Weight | 188.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
5-Isopropylthiophene-3-carbonyl chloride (CAS 1160248-86-1) is a high-purity analytical reference standard with the molecular formula C8H9ClOS and a molecular weight of 188.67 g/mol.
Owing to sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 5-Isopropylthiophene-3-carbonyl chloride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 188.67 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).
As a certified reference material (CRM), 5-Isopropylthiophene-3-carbonyl chloride 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 | C8H9ClOS |
| Molecular Weight | 188.67 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1989 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Isopropylthiophene Standards
- N-isopropylthiophene-2-carboximidoyl chloride (CAS 885524-77-6)
- 5-Isopropylthiophene-2-sulfonamide (CAS 142294-55-1)
- N-isopropylthiophene-2-sulfonamide (CAS 332354-67-3)
- 5-Isopropylthiophene-3-carboxylic acid (CAS 123418-51-9)
- 3-Isopropylthiophene-2-carboxylic acid (CAS 29488-31-1)
- N-isopropylthiophene-3-carboxamide (CAS 531549-10-7)
- 3-Ethyl-4-isopropylthiophene (CAS 147871-81-6)
- 4-Isopropylthiophene-2-carbaldehyde (CAS 163461-02-7)
Recommended Standards
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