Methyl 3-(furan-3-carboxamido)thiophene-2-carboxylate CAS 1099331-19-7
| CAS No. | 1099331-19-7 |
| Molecular Formula | C11H9NO4S |
| Molecular Weight | 251.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methyl 3-(furan-3-carboxamido)thiophene-2-carboxylate (CAS 1099331-19-7), molecular formula C11H9NO4S and molecular weight 251.26 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Methyl 3-(furan-3-carboxamido)thiophene-2-carboxylate (C11H9NO4S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 251.26 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C11H9NO4S |
| Molecular Weight | 251.26 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- 5-(Furan-2-amido)-3-methylthiophene-2-carboxylic acid (CAS 923826-21-5)
- Methyl 2-(furan-2-carboxamido)thiophene-3-carboxylate (CAS 271778-22-4)
- Methyl 3-(furan-2-carboxamido)thiophene-2-carboxylate (CAS 438457-17-1)
- 2-(Furan-2-yl)-[1,2,4]triazolo[1,5-c]quinazolin-5-amine (CAS 104615-28-3)
- 3-(Furan-2-carbonyl)quinoline-2-carbaldehyde (CAS 126769-01-5)
- Ethyl 1-(furan-2-ylmethyl)-4,5-dioxopyrrolidine-3-carboxylate (CAS 142774-43-4)
- 2-(Furan-2-yl)pyrazolo[1,5-c]quinazolin-5(6H)-one (CAS 178624-94-7)
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Recommended Standards
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- Tert-butyl 6-fluoro-1-methyl-1H-pyrazolo[3,4-b]pyridine-3-carboxylate (CAS 1159982-24-7)
- N-Butyl-5-(1-isopropylpyrrolidin-2-yl)pyridin-2-amine (CAS 1352507-31-3)
- 2,4-Dimethyl 3-[2-(2,6-dimethylmorpholin-4-yl)acetyl]-1,3-thiazolidine-2,4-dicarboxylate (CAS 1009176-74-2)
- 4-Acetyl-N-(5-ethoxy-2-methyl-2,3-dihydrobenzofuran-6-yl)-1H-pyrrole-2-carboxamide (CAS 1118839-75-0)
- 2,3-Difluoro-5-methoxypyridine (CAS 1227573-20-7)
- 2-Bromo-3-(piperidin-1-yl)pyridine (CAS 1563532-94-4)
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- 2-Fluoro-4-formyl-6-methoxyphenylboronic acid (CAS 1451392-10-1)
- (S)-4-((3,6-diphenyl-9H-carbazol-9-yl)methyl)-2-methyl-4,5-dihydrooxazole (CAS 2357080-02-3)
- 2-Naphthol-d7 (CAS 78832-54-9)
- Semaglutide impurity 91 (CAS CATO-C4X-222691)
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