6-Thioxo-1,6-dihydropyridazine-3-carboxylic acid CAS 83673-86-3
| CAS No. | 83673-86-3 |
| Molecular Formula | C5H4N2O2S |
| Molecular Weight | 156.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
6-Thioxo-1,6-dihydropyridazine-3-carboxylic acid (CAS 83673-86-3), molecular formula C5H4N2O2S and molecular weight 156.16 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C5H4N2O2S, 6-Thioxo-1,6-dihydropyridazine-3-carboxylic acid contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 156.16 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.
CATO manufactures 6-Thioxo-1,6-dihydropyridazine-3-carboxylic acid 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 | C5H4N2O2S |
| Molecular Weight | 156.16 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1980 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Thioxo Standards
- 2-Oxo-4-thioxo-1,2,3,4-tetrahydropyrimidine-5-carbaldehyde (CAS 144850-43-1)
- 2-Thioxo-1,2-dihydropyrimidine-4-carboxylic acid (CAS 6972-13-0)
- 6-Thioxo-1,6-dihydropyrimidine-4-carboxylic acid (CAS 6944-71-4)
- 6-Thioxo-5,7-diazaspiro[3.4]octan-8-one (CAS 1556929-79-3)
- 1-(3-Methyl-5-thioxo-4,5-dihydro-1H-pyrazol-4-yl)ethanone (CAS 211988-12-4)
- 3-Ethyl-4-thioxo-3,4-dihydropyrimidin-2(1H)-one (CAS 50680-83-6)
- 4-Thioxo-1,4-dihydropyrimidine-5-carboxamide (CAS 102818-21-3)
- 3-Thioxo-3,4-dihydropyrazine-2-carboxamide (CAS 131295-39-1)
Recommended Standards
- 6-Fluoro-6-methyl-6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazine (CAS 2676863-38-8)
- 6-Ethoxy-5-fluoropyridin-3-amine (CAS 886372-67-4)
- Voriconazole Impurity 85 (CAS CATO-C4X-136685)
- 6-(1-Fluoro-1-methyl-ethyl)-3H-pyrimidin-4-one (CAS 240414-09-9)
- Ethyl (10-(3-chloropropanoyl)-10H-phenothiazin-2-yl-34S)carbamate (CAS 119407-03-3)
- (2S)-1,4-dimethylpiperazine-2-carboxylic acid (CAS 2306244-82-4)
- 2,9,10-Tri(naphthalen-2-yl)anthracene (CAS 865435-18-3)
- 2,4-Dimethylbenzamide (CAS 73258-94-3)
- 3-Bromo-5-fluoro-2-isopropoxyaniline (CAS 1096834-81-9)
- 3-Bromo-2,5-difluoropyridine (CAS 1211331-43-9)
- (Z)-N'-Cyano-N-(3,4-dimethylphenyl)(methylsulfanyl)methanimidamide (CAS 72499-79-7)
- Ethyl 2-tosylpropanoate (CAS 95314-82-2)
- 2-Propenoic acid, ethyl ester, polymer with ethenyl acetate and methyl 2-propenoate (CAS 63181-88-4)
- Des-Pro36-37-Tirzepatide (CAS CATO-CPTD788938)
Why CATO?
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