[1,2,4]Triazolo[4,3-a]pyridine-5-thiol CAS 64943-35-7
| CAS No. | 64943-35-7 |
| Molecular Formula | C6H5N3S |
| Molecular Weight | 151.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
[1,2,4]Triazolo[4,3-a]pyridine-5-thiol (CAS 64943-35-7) is a high-purity analytical reference standard with the molecular formula C6H5N3S and a molecular weight of 151.19 g/mol.
[1,2,4]Triazolo[4,3-a]pyridine-5-thiol (C6H5N3S) contains a nitrile group, sulfur-containing functionality, an aromatic ring system. 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.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures [1,2,4]Triazolo[4,3-a]pyridine-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 | C6H5N3S |
| Molecular Weight | 151.19 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 |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Triazolo Standards
- [1,2,4]Triazolo[1,5-a]pyridine-7-thiol (CAS 2757601-30-0)
- [1,2,4]Triazolo[1,5-a][1,3,5]triazine-5,7-diamine (CAS 102365-46-8)
- 6-methyl[1,2,4]triazolo[4,3-b][1,2,4]triazin-7(8H)-one (CAS 19542-10-0)
- 1-(1H-[1,2,4]Triazolo[4,3-b][1,2,4]triazol-1-yl)ethanone (CAS 56424-48-7)
- 1-Methyl-[1,2,4]triazolo[1,5-b][1,2,4]triazin-7(1H)-one (CAS 89569-73-3)
- 1-Methyl-[1,2,4]triazolo[5,1-c][1,2,4]triazin-4(1H)-one (CAS 59105-03-2)
- 3-Methyl-[1,2,4]triazolo[5,1-c][1,2,4]triazin-4(1H)-one (CAS 57250-39-2)
- 5-Methyl-[1,2,4]triazolo[4,3-a][1,3,5]triazin-7(1H)-one (CAS 200350-23-8)
Recommended Standards
- [1,2]thiazolo[3,4-b]pyridin-3-amine (CAS 42242-06-8)
- 4-Acetylthiophene-2-carbonitrile (CAS 1949776-49-1)
- 1,2-Benzisothiazol-4-ol (CAS 67982-15-4)
- Thieno[2,3-b]pyrazin-3-amine (CAS 1940206-33-6)
- 5-Chloro-1-(2-chloro-6-fluorobenzyl)-6-oxo-1,6-dihydropyridine-3-carbaldehyde (CAS 1033463-20-5)
- (R)-tert-Butyl (2-methyl-3-((5-(methylthio)pyrimidin-2-yl)amino)propyl)carbamate (CAS 2455423-75-1)
- 3-(9h-Carbazol-9-yl)propan-1-amine hydrochloride (CAS 1001349-06-9)
- 6-(2,4-Dimethoxyphenyl)-2-methylnicotinaldehyde (CAS 1447962-31-3)
- 6-Chloro-4-oxo-1,4-dihydro-1,5-naphthyridine-3-carboxylic acid, 97% (CAS 959277-17-9)
- (4-Isopropoxyphenyl)boronic acid hydrate (CAS 1256355-64-2)
- 2-Amino-5-chloropyrimidine-4-carboxamide (CAS 902139-67-7)
- Methyl (S)-3-Amino-3-(1-naphthyl)propanoate Hydrochloride (CAS 1245606-67-0)
- Alaninamide, L-threonyl-2-[(1Z)-1-amino-1-propen-1-yl]-4-oxazolecarbonyl-2,3-didehydroalanyl-3-methyl-L-threonyl-2-(1-aminoethenyl)-5-methyl-4-oxazolecarbonyl-2,3-didehydroalanyl-6-[2-(1-aminoethenyl)-4-oxazolyl]-5-(4-carboxy-2-thiazolyl)-2-pyridinecarbonyl-2,3-didehydroalanyl-2,3-didehydro-, (7→1)-lactam (CAS 158792-27-9)
- Insulin Degludec Impurity 20 (CAS CATO-C4X-215720)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com