| CAS No. | 1956-45-2 |
| Molecular Formula | C6H7NOS |
| Molecular Weight | 141.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1956-45-2 Ethanone, 1-(2-thienyl)-, oxime Ketone, methyl 2-thienyl, oxime 1-(2-Thienyl)ethanone oxime AI3-61792 EINECS 217-800-2 Methyl 2-thienyl ketone oxime NSC 16234 (CAS 1956-45-2), molecular formula C6H7NOS and molecular weight 141.19 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1956-45-2 Ethanone, 1-(2-thienyl)-, oxime Ketone, methyl 2-thienyl, oxime 1-(2-Thienyl)ethanone oxime AI3-61792 EINECS 217-800-2 Methyl 2-thienyl ketone oxime NSC 16234 (C6H7NOS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 141.19 g/mol, it falls into the low-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
| Molecular Formula | C6H7NOS |
| Molecular Weight | 141.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |