Ethyl 6-((dimethylamino)methylene)-1,4,4-trimethyl-7-oxo-4,5,6,7-tetrahydro-1H-indazole-3-carboxylate CAS 802541-49-7
| CAS No. | 802541-49-7 |
| Molecular Formula | C16H23N3O3 |
| Molecular Weight | 305.37 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.
Ethyl 6-((dimethylamino)methylene)-1,4,4-trimethyl-7-oxo-4,5,6,7-tetrahydro-1H-indazole-3-carboxylate (CAS 802541-49-7) is a high-purity analytical reference standard with the molecular formula C16H23N3O3 and a molecular weight of 305.37 g/mol.
Structurally, Ethyl 6-((dimethylamino)methylene)-1,4,4-trimethyl-7-oxo-4,5,6,7-tetrahydro-1H-indazole-3-carboxylate (C16H23N3O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 305.37 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.
As a certified reference material (CRM), Ethyl 6-((dimethylamino)methylene)-1,4,4-trimethyl-7-oxo-4,5,6,7-tetrahydro-1H-indazole-3-carboxylate 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.
Physical & Chemical Properties
| Molecular Formula | C16H23N3O3 |
| Molecular Weight | 305.37 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 3 |
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- 1379811-39-8 N-(6-Ethyl-1,3-benzothiazol-2-yl)guanidine (CAS 1379811-39-8)
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- 6-Bromo-3-formyl-1H-indazole-4-carboxylic acid (CAS 885523-80-8)
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- 2,2,6,6-Tetramethyl-N-((tetrahydrofuran-2-yl)methyl)piperidin-4-amine (CAS 129953-60-2)
- 6-Bromo-4-chloro-3-methylquinoline (CAS 188256-40-8)
- 1-(2-Aminoethyl)-N-benzyl-N-isopropylpyrrolidin-3-amine (CAS 1353965-05-5)
- D-Phe6-Tirzepatide (CAS CATO-CPTD788925)
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