N'-(2-methoxybenzoyl)-3-(1H-pyrrol-1-yl)thiophene-2-carbohydrazide CAS 672952-11-3
| CAS No. | 672952-11-3 |
| Molecular Formula | C17H15N3O3S |
| Molecular Weight | 341.38 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.
N'-(2-methoxybenzoyl)-3-(1H-pyrrol-1-yl)thiophene-2-carbohydrazide (CAS 672952-11-3), molecular formula C17H15N3O3S and molecular weight 341.38 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, N'-(2-methoxybenzoyl)-3-(1H-pyrrol-1-yl)thiophene-2-carbohydrazide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 341.38 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).
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 | C17H15N3O3S |
| Molecular Weight | 341.38 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related N Standards
- N'-(3-methoxybenzoyl)-3-(1H-pyrrol-1-yl)thiophene-2-carbohydrazide (CAS 672925-23-4)
- Methyl 2-(4-(4-methoxybenzoyl)-3,4-dihydro-2H-benzo[b][1,4]oxazin-3-yl)acetate (CAS 861212-87-5)
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- 2-[5-(4-Methoxybenzoyl)-2-thienyl]-3-phenylacrylonitrile (CAS 338966-79-3)
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Recommended Standards
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