8-Methyl-6-phenyl-5,6-dihydro-4H-thieno[2,3-e]indazole-2-carboxylic acid CAS 1170302-46-1
| CAS No. | 1170302-46-1 |
| Molecular Formula | C17H14N2O2S |
| Molecular Weight | 310.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 8-Methyl-6-phenyl-5,6-dihydro-4H-thieno[2,3-e]indazole-2-carboxylic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
8-Methyl-6-phenyl-5,6-dihydro-4H-thieno[2,3-e]indazole-2-carboxylic acid (CAS 1170302-46-1), molecular formula C17H14N2O2S and molecular weight 310.37 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C17H14N2O2S, 8-Methyl-6-phenyl-5,6-dihydro-4H-thieno[2,3-e]indazole-2-carboxylic acid contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 310.37 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
Physical & Chemical Properties
| Molecular Formula | C17H14N2O2S |
| Molecular Weight | 310.37 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.) | 1989 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Recommended Standards
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