| CAS No. | 1250996-49-6 |
| Molecular Formula | C15H21N3O4S2 |
| Molecular Weight | 371.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
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.
Pyrrolo[3',4':5,6]thiopyrano[4,3-d]pyrimidine-8(5H)-carboxylic acid, 6a,7,9,9a-tetrahydro-2-(methylthio)-, 1,1-dimethylethyl ester, 6,6-dioxide, (6aR,9aS)-rel- (CAS 1250996-49-6), molecular formula C15H21N3O4S2 and molecular weight 371.47 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Pyrrolo[3',4':5,6]thiopyrano[4,3-d]pyrimidine-8(5H)-carboxylic acid, 6a,7,9,9a-tetrahydro-2-(methylthio)-, 1,1-dimethylethyl ester, 6,6-dioxide, (6aR,9aS)-rel- is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 371.47 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures Pyrrolo[3',4':5,6]thiopyrano[4,3-d]pyrimidine-8(5H)-carboxylic acid, 6a,7,9,9a-tetrahydro-2-(methylthio)-, 1,1-dimethylethyl ester, 6,6-dioxide, (6aR,9aS)-rel- under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
| Molecular Formula | C15H21N3O4S2 |
| Molecular Weight | 371.47 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |