| CAS No. | 861100-75-6 |
| Molecular Formula | C7H7N3S |
| Molecular Weight | 165.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 165.22 g/mol gives Thieno[3,4-b]pyridine-5,7-diamine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Thieno[3,4-b]pyridine-5,7-diamine (CAS 861100-75-6), molecular formula C7H7N3S and molecular weight 165.22 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Thieno[3,4-b]pyridine-5,7-diamine (C7H7N3S) is characterized by a nitrile group, sulfur-containing functionality, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
| Molecular Formula | C7H7N3S |
| Molecular Weight | 165.22 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |