[1,2,4]triazolo[1,5-a]pyrimidine-2-thiol CAS 66234-79-5
| CAS No. | 66234-79-5 |
| Molecular Formula | C5H4N4S |
| Molecular Weight | 152.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures [1,2,4]triazolo[1,5-a]pyrimidine-2-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.
[1,2,4]triazolo[1,5-a]pyrimidine-2-thiol (CAS 66234-79-5), molecular formula C5H4N4S and molecular weight 152.18 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of [1,2,4]triazolo[1,5-a]pyrimidine-2-thiol (C5H4N4S) is characterized by a nitrile group, sulfur-containing functionality. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
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.) | 1975 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related triazolo Standards
- [1,2,4]Triazolo[4,3-a]pyrazine-3-thiol (CAS 1517917-09-7)
- 1,2,4-Triazolo[4,3-b]pyridazine-6(5H)-thione 58826-44-1 CTK1E8805 (CAS 58826-44-1)
- [1,2,4]triazolo[1,5-a]pyridine-7-carbonitrile (CAS 1378589-77-5)
- [1,2,4]triazolo[1,5-a]pyridine-6-carbonitrile (CAS 943845-23-6)
- [1,2,4]Triazolo[1,5-a]pyrimidine-5,7(1H,6H)-dione (CAS 211733-06-1)
- 1H-[1,2,3]triazolo[4,5-d]pyridazine-4,7-diol (CAS 124868-43-5)
- [1,2,4]Triazolo[1,5-a]pyridine-7-thiol (CAS 2757601-30-0)
- [1,2,4]Triazolo[4,3-a]pyridine-5-thiol (CAS 64943-35-7)
Recommended Standards
- [1,2,3]Thiadiazolo[4,5-c]pyridin-4-amine (CAS 36258-90-9)
- 1,3-Dihydro-2H-imidazo[4,5-b]pyrazine-2-thione (CAS 79100-21-3)
- 2-(1H-1,2,3-Triazol-1-yl)thiazole (CAS 179753-59-4)
- 1,4-Dinitrosopiperazine-d8 (CAS 69340-07-4)
- 5-Chloro-2,3-dihydro-2-thioxo-4-pyrimidinecarboxylic Acid (CAS 1023812-22-7)
- (E)-N,N-Dimethyl-N'-{7-[1-(4-nitrophenoxy)ethyl]-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl}methanimidamide (CAS 477865-36-4)
- 3,3-difluorocyclopentan-1-ol (CAS 883731-65-5)
- 2-hydrazino-5-methoxy-1,3-benzothiazole (CAS 80945-74-0)
- 3,4-Dihydro-4-oxothieno[2,3-<I>d</I>]pyrimidine (CAS 14080-50-3)
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- 5-Bromo-3-chloro-6-fluoropyridin-2-amine (CAS 2857813-67-1)
- 2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4,5-dihydro-1H-pyrrolo[3,4-b]pyrrol-6-one (CAS 2052290-76-1)
- 5-Nitroindole-3-carbonitrile (CAS 7147-14-0)
- Semaglutide impurity 68 (CAS CATO-C4X-222668)
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