5-(((9H-Fluoren-9-yl)methoxy)carbonyl)-5,6-dihydro-4H-thieno[2,3-c]pyrrole-2-carboxylic acid CAS 2137804-79-4
| CAS No. | 2137804-79-4 |
| Molecular Formula | C22H17NO4S |
| Molecular Weight | 391.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
5-(((9H-Fluoren-9-yl)methoxy)carbonyl)-5,6-dihydro-4H-thieno[2,3-c]pyrrole-2-carboxylic acid (CAS 2137804-79-4), molecular formula C22H17NO4S and molecular weight 391.44 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-(((9H-Fluoren-9-yl)methoxy)carbonyl)-5,6-dihydro-4H-thieno[2,3-c]pyrrole-2-carboxylic acid (C22H17NO4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 391.44 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C22H17NO4S |
| Molecular Weight | 391.44 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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- Semaglutide Impurity 164 (CAS CATO-C4X-2226164)
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