Thiazolo[4,5-d]pyridazin-7(6H)-one CAS 2138546-89-9
| CAS No. | 2138546-89-9 |
| Molecular Formula | C5H3N3OS |
| Molecular Weight | 153.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Thiazolo[4,5-d]pyridazin-7(6H)-one is closely related to an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Thiazolo[4,5-d]pyridazin-7(6H)-one (CAS 2138546-89-9), molecular formula C5H3N3OS and molecular weight 153.16 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Thiazolo[4,5-d]pyridazin-7(6H)-one (C5H3N3OS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 153.16 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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), Thiazolo[4,5-d]pyridazin-7(6H)-one 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 | C5H3N3OS |
| Molecular Weight | 153.16 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.) | 1997 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Thiazolo Standards
- Thiazolo[5,4-d]pyrimidin-2(1H)-one (CAS 119681-93-5)
- Thiazolo[4,5-d]pyrimidin-7(6H)-one (CAS 1353101-44-6)
- Thiazolo[5,4-d]pyrimidin-7-ol (CAS 5021-50-1)
- Thiazolo[4,5-b]pyrazin-2-amine (CAS 112342-71-9)
- Thiazolo[4,5-d]pyrimidin-2-amine (CAS 857970-35-5)
- Thiazolo[4,5-d]pyrimidin-7-amine (CAS 2168138-70-1)
- Thiazolo[5,4-d]pyrimidin-2-amine (CAS 920313-61-7)
- Thiazolo[5,4-d]pyrimidin-7-amine (CAS 2846-90-4)
Recommended Standards
- Sulfino-D-alanine (CAS 35554-99-5)
- Phenyl(9H-purin-8-yl)methanol (CAS 2836-31-9)
- Thieno[2,3-d][1,2,3]triazin-4(1H)-one (CAS 38371-44-7)
- N-(4-Fluoro-phenyl)-guanidine (CAS 65783-21-3)
- 2-(3,6-Dihydro-2h-pyran-4-yl)ethan-1-amine hydrochloride (CAS 1423026-21-4)
- Ethyl 6-methoxy-4-(trifluoromethyl)nicotinate (CAS 1806589-22-9)
- Amino-(PEG)n-acid (CAS 196936-04-6)
- Ethyl(3-fluoro-4-methoxyphenyl)sulfane (CAS 1314903-63-3)
- NSN-Dimer (CAS 7521-27-9)
- 3-(2,6-Difluoro-phenoxy)-azetidine hydrochloride (CAS 1965310-43-3)
- (2S,3R)-3-methyloxolane-2-carboxylic acid (CAS 141072-96-0)
- 2,3-Dibromo-4,5,6,7-tetrahydro-1-benzothiophene (CAS 1785762-03-9)
- 3,6-Bis(chloromethyl)durene (CAS 3022-16-0)
- β-Bag Cell Peptide (Aplysia californica) (CAS 109024-47-7)
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