Ethyl 2-(8-chloro-[1,2,4]triazolo[4,3-a]pyrazin-3-yl)-2-oxoacetate CAS 1315365-24-2
| CAS No. | 1315365-24-2 |
| Molecular Formula | C9H7ClN4O3 |
| Molecular Weight | 254.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 2-(8-chloro-[1,2,4]triazolo[4,3-a]pyrazin-3-yl)-2-oxoacetate (CAS 1315365-24-2), molecular formula C9H7ClN4O3 and molecular weight 254.63 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Ethyl 2-(8-chloro-[1,2,4]triazolo[4,3-a]pyrazin-3-yl)-2-oxoacetate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 254.63 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C9H7ClN4O3 |
| Molecular Weight | 254.63 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Ethyl Standards
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Recommended Standards
- 2-[1-(6-chloropyridazin-3-yl)-5-oxo-4,5-dihydro-1h-pyrazol-3-yl]acetic acid (CAS 1094331-75-5)
- 6-Chloro-7-methoxy-2-oxo-2H-chromene-3-carboxylic acid (CAS 704882-50-8)
- 6-chloro-4-(difluoromethyl)-8-oxa-3,5-diazatricyclo[7.4.0.0²,⁷]trideca-1(13),2,4,6,9,11-hexaene (CAS 2866218-02-0)
- 4-Amino-2-fluoro-5-nitrobenzenesulfonyl chloride (CAS 2550442-23-2)
- Indane-5-boronic Acid (CAS 196861-31-1)
- (R)-N-Isopropyl-1-methylpiperidin-3-amine (CAS 1354009-47-4)
- N-(2,6-Dimethylphenyl)-1-piperidineacetamide (CAS 13327-12-3)
- Gingerol, 8-(P) (CAS 77398-92-6)
- Propyl (3-(1-((tert-butoxycarbonyl)amino)ethyl)oxetan-3-yl)glycinate (CAS 2200580-78-3)
- Brometazepam (CAS 84031-17-4)
- Benzyl(2,3,5,6,8,9,11,12-octahydrobenzo[b][1,4,7,10,13]pentaoxacyclopentadecin-15-yl)diphenylphosphonium bromide (CAS 134403-72-8)
- Ethyl 3-pivalamidobenzoate (CAS 885898-30-6)
- 1-(4-Isopropylcyclohexyl)prop-2-en-1-one (CAS 1491762-33-4)
- Fragment-[7-31]-Liraglutide (CAS CATO-C4X-199239)
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