| CAS No. | 10040-34-3 |
| Molecular Formula | C18H15NO8S2 |
| Molecular Weight | 437.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
(Pyridin-2-ylmethylene)bis(4,1-phenylene) bis(hydrogen sulfate) (CAS 10040-34-3) is a high-purity analytical reference standard with the molecular formula C18H15NO8S2 and a molecular weight of 437.44 g/mol.
Based on its molecular formula C18H15NO8S2, (Pyridin-2-ylmethylene)bis(4,1-phenylene) bis(hydrogen sulfate) contains a flavonoid 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 437.44 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.
As a certified reference material (CRM), (Pyridin-2-ylmethylene)bis(4,1-phenylene) bis(hydrogen sulfate) 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.
| Molecular Formula | C18H15NO8S2 |
| Molecular Weight | 437.44 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |