| CAS No. | 29683-84-9 |
| Molecular Formula | C5H5NOS |
| Molecular Weight | 127.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The occurrence of N-(2-Thienylmethylidene)hydroxylamine is closely related to an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
N-(2-Thienylmethylidene)hydroxylamine (CAS 29683-84-9) is a high-purity analytical reference standard with the molecular formula C5H5NOS and a molecular weight of 127.16 g/mol.
Owing to an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, N-(2-Thienylmethylidene)hydroxylamine is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 127.16 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).
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.
| Molecular Formula | C5H5NOS |
| Molecular Weight | 127.16 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 |
| CAS Registry Year (est.) | 1965 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |