Pyridazine-4-thiol CAS 54700-00-4
| CAS No. | 54700-00-4 |
| Molecular Formula | C4H4N2S |
| Molecular Weight | 112.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Pyridazine-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.
Pyridazine-4-thiol (CAS 54700-00-4) is a high-purity analytical reference standard with the molecular formula C4H4N2S and a molecular weight of 112.15 g/mol.
Based on its molecular formula C4H4N2S, Pyridazine-4-thiol contains a nitrile group, sulfur-containing functionality; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 112.15 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C4H4N2S |
| Molecular Weight | 112.15 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1972 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Pyridazine Standards
- Pyridazine-3-thiol (CAS 134035-32-8)
- Pyridazine-3-thiol (CAS 28544-77-6)
- Pyridazine-3,5-diol (CAS 17285-29-9)
- pyridazine-4-carbonitrile (CAS 68776-62-5)
- Pyridazine-3,5-diamine (CAS 61071-13-4)
- Pyridazine-4,5-diamine (CAS 28682-70-4)
- Pyridazine-3,6-diamine (CAS 61070-99-3)
- Pyridazine-3-carbaldehyde (CAS 60170-83-4)
Recommended Standards
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