1,10b-dihydropyrazolo[1,5-c]quinazoline-5-thiol CAS 59553-09-2
| CAS No. | 59553-09-2 |
| Molecular Formula | C10H9N3S |
| Molecular Weight | 203.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,10b-dihydropyrazolo[1,5-c]quinazoline-5-thiol (CAS 59553-09-2) is a high-purity analytical reference standard with the molecular formula C10H9N3S and a molecular weight of 203.26 g/mol.
The molecular framework of 1,10b-dihydropyrazolo[1,5-c]quinazoline-5-thiol (C10H9N3S) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
CATO manufactures 1,10b-dihydropyrazolo[1,5-c]quinazoline-5-thiol 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.
Physical & Chemical Properties
| Molecular Formula | C10H9N3S |
| Molecular Weight | 203.26 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- Semaglutide impurity 72 (CAS CATO-C4X-222672)
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