3,6-Dimethyl-9H-xanthene CAS 13333-91-0
| CAS No. | 13333-91-0 |
| Molecular Formula | C12H14N2O |
| Molecular Weight | 202.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,6-Dimethyl-9H-xanthene (CAS 13333-91-0) is a high-purity analytical reference standard with the molecular formula C12H14N2O and a molecular weight of 202.25 g/mol.
Based on its molecular formula C12H14N2O, 3,6-Dimethyl-9H-xanthene contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 202.25 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C12H14N2O |
| Molecular Weight | 202.25 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
| Nitrogen Atoms | 2 |
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