1H-Pyrazolo[3,4-d]pyrimidine-4-thiol CAS 5334-23-6
| CAS No. | 5334-23-6 |
| Molecular Formula | C5H4N4S |
| Molecular Weight | 152.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1H-Pyrazolo[3,4-d]pyrimidine-4-thiol is closely related to a nitrile group, sulfur-containing functionality in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 1H-Pyrazolo[3,4-d]pyrimidine-4-thiol (CAS 5334-23-6), a certified reference material (molecular formula C5H4N4S, MW 152.18 g/mol) for analytical method development and quality control.
1H-Pyrazolo[3,4-d]pyrimidine-4-thiol (C5H4N4S) contains a nitrile group, sulfur-containing functionality. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), 1H-Pyrazolo[3,4-d]pyrimidine-4-thiol 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.
Physical & Chemical Properties
| Molecular Formula | C5H4N4S |
| Molecular Weight | 152.18 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 |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related H Standards
- 1H-pyrazolo[4,3-b]pyridine-5-carbonitrile (CAS 1033772-22-3)
- 1H-pyrazolo[4,3-c]pyridine-6-carbonitrile (CAS 1206981-70-5)
- 1H-pyrazolo[3,4-b]pyridine-5-carbonitrile (CAS 1234616-67-1)
- 1h-pyrazolo[4,3-b]pyridine-3-carbonitrile (CAS 1286753-96-5)
- 1h-pyrazolo[4,3-b]pyridine-6-carbonitrile (CAS 1352395-13-1)
- 1H-pyrazolo[3,4-b]pyridine-4-carbonitrile (CAS 1378652-03-9)
- 1H-pyrazolo[3,4-c]pyridine-3-carbonitrile (CAS 245325-34-2)
- 1H-pyrazolo[3,4-c]pyridine-5-carbonitrile (CAS 633328-50-4)
Recommended Standards
- 1,4-Dinitrosopiperazine-d8 (CAS 69340-07-4)
- 2-(1H-1,2,4-Triazol-1-yl)thiazole (CAS 856862-18-5)
- 1,3-Dihydro-2H-imidazo[4,5-b]pyrazine-2-thione (CAS 79100-21-3)
- 2-(1H-Imidazol-1-yl)-1,3,4-thiadiazole (CAS 67545-21-5)
- 5,6-difluoropyridine-3-carboxylic acid (CAS 851386-33-9)
- Ethyl 2-amino-4-(4-cyclohexylphenyl)thiophene-3-carboxylate (CAS 351156-51-9)
- 2-Chloro-3-cyclobutoxy-5-(tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 2223030-57-5)
- 1-[(tert-Butoxy)carbonyl]-3-methoxypyrrolidine-3-carboxylic acid (CAS 1784095-47-1)
- 5-Chloro-1H-pyrazol-3-amine (CAS 916211-79-5)
- 6-Methyl-1H-benzimidazole-2-methanol (CAS 20034-02-0)
- (2R,3S)-2-(piperidin-4-yl)tetrahydrofuran-3-carboxamide (CAS 1807941-83-8)
- 2-AMINO-4-HYDROXYPYRIMIDINE (CAS 674-97-5)
- 2-(3-chloro-4-fluorophenyl)-1,3-thiazole-4-carboxylic acid (CAS 549526-19-4)
- Semaglutide impurity 247 (CAS CATO-C4X-2226247)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com