Ethyl 2-((5,6-dimethyl-7-oxo-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetate CAS 891133-42-9
| CAS No. | 891133-42-9 |
| Molecular Formula | C11H14N4O3S |
| Molecular Weight | 282.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Ethyl 2-((5,6-dimethyl-7-oxo-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetate is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Ethyl 2-((5,6-dimethyl-7-oxo-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetate (CAS 891133-42-9), molecular formula C11H14N4O3S and molecular weight 282.32 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Ethyl 2-((5,6-dimethyl-7-oxo-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 282.32 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), Ethyl 2-((5,6-dimethyl-7-oxo-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)acetate 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 | C11H14N4O3S |
| Molecular Weight | 282.32 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- 5-(2-(3,5-Dimethyl-4-nitro-1h-pyrazol-1-yl)ethyl)-4-methyl-4h-1,2,4-triazole-3-thiol (CAS 1001756-39-3)
- 2,4-Dimethyl-4-(1,3-dioxolan-2-yl)benzophenone (CAS 898760-19-5)
- 2,5-Dimethyl-4-(1,3-dioxolan-2-yl)benzophenone (CAS 898760-22-0)
- 2,6-Dimethyl-3-(1,3-dioxolan-2-yl)benzophenone (CAS 898779-39-0)
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- 3,4-Dimethyl-4-(1,3-dioxolan-2-yl)benzophenone (CAS 898760-28-6)
- 3,5-Dimethyl-3-(1,3-dioxolan-2-yl)benzophenone (CAS 898779-45-8)
- Methyl 1,3-dimethyl-6-(pyridin-3-yl)-1H-pyrazolo[3,4-b]pyridine-4-carboxylate (CAS 1011397-76-4)
Recommended Standards
- 7-(2H-1,2,3-Benzotriazol-2-yl)-5-methyl-1,3-benzoxazole-2-thiol (CAS 442644-44-2)
- Ethyl 2-((5-methyl-7-oxo-7,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl)thio)propanoate (CAS 891118-65-3)
- 6-(Piperidine-1-sulfonyl)-1h-1,2,3-benzotriazol-1-ol (CAS 733762-43-1)
- Ethyl 2-{[(E)-(1-{6-methyl-[1,2,4]triazolo[3,2-b][1,3]thiazol-5-yl}ethylidene)amino]oxy}acetate (CAS 478245-58-8)
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