N'-(2-oxo-2H-indol-3-yl)thiophene-2-carbohydrazide CAS 328585-95-1
| CAS No. | 328585-95-1 |
| Molecular Formula | C13H9N3O2S |
| Molecular Weight | 271.29 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.
N'-(2-oxo-2H-indol-3-yl)thiophene-2-carbohydrazide (CAS 328585-95-1) is a high-purity analytical reference standard with the molecular formula C13H9N3O2S and a molecular weight of 271.29 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, N'-(2-oxo-2H-indol-3-yl)thiophene-2-carbohydrazide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 271.29 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C13H9N3O2S |
| Molecular Weight | 271.29 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Recommended Standards
- Methyl 6-(pyrazin-2-yl)thieno[3,2-b]pyridine-3-carboxylate (CAS 959245-23-9)
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- Methyl 2-((3-cyanopyrazin-2-yl)thio)benzoate (CAS 303146-82-9)
- N-(4-(Pyridin-4-yl)thiazol-2-yl)furan-2-carboxamide (CAS 476631-52-4)
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- 2-Bromo-6-methoxy-4-{[(propan-2-yl)amino]methyl}phenol hydrochloride (CAS 1240567-72-9)
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- 1,1'-Dioctadecyl-3,3,3',3'-tetramethylindocarbocyanine (CAS 40957-95-7)
- 2-Methyl-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-6-carboxylic acid (CAS 691868-52-7)
- Dotinurad Impurity 221 (CAS CATO-C4X-2494221)
- (3-Iodophenyl)(6-methoxypyridin-2-yl)methanone (CAS 1187167-18-5)
- 2-Chloro-4-(methylsulfonyl)pyridine (CAS 99903-03-4)
- Ethyl 5-nitro-3-oxo-2,3-dihydro-1H-indazole-1-carboxylate (CAS 178160-22-0)
- Semaglutide Impurity 157 (x TFA Salt) (CAS CATO-C4X-2226157)
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