Ethyl 7-amino-2-(methylthio)-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate CAS 90559-98-1
| CAS No. | 90559-98-1 |
| Molecular Formula | C9H11N5O2S |
| Molecular Weight | 253.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Ethyl 7-amino-2-(methylthio)-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate 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 7-amino-2-(methylthio)-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate (CAS 90559-98-1), molecular formula C9H11N5O2S and molecular weight 253.28 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 7-amino-2-(methylthio)-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 253.28 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).
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 Ethyl 7-amino-2-(methylthio)-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate 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 | C9H11N5O2S |
| Molecular Weight | 253.28 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- Methyl 4-amino-2-((furan-2-ylmethyl)amino)thiazole-5-carboxylate (CAS 1193388-37-2)
- Ethyl 2-amino-4-(1-methyl-1H-1,2,4-triazol-5-yl)thiazole-5-carboxylate (CAS 1229426-21-4)
- 4-Amino-N-(4-methylisoxazol-3-yl)benzenesulfonamide (CAS 1829-84-1)
- 2-(6-Amino-9H-purin-8-ylsulfanyl)-butyric acid (CAS 436086-77-0)
- 3-(5-Amino-3-methyl-1H-pyrazol-1-yl)benzenesulfonic acid (CAS 23646-86-8)
- 3-Amino-N-(5-methyl-1,2-oxazol-3-yl)benzene-1-sulfonamide (CAS 954563-97-4)
- 4-Amino-2-(methylamino)-N-(5-methylisoxazol-3-yl)thiazole-5-carboxamide (CAS 664999-78-4)
- 5-amino-1-(4-methylbenzenesulfonyl)-2,3-dihydro-1H-pyrazol-3-one (CAS 240117-38-8)
Recommended Standards
- 8-Ethyl-2-(methylsulfonyl)pyrido[2,3-d]pyrimidin-7(8H)-one (CAS 211244-84-7)
- N-((2-methyl-5-nitrophenyl)carbamothioyl)acetamide (CAS 72621-59-1)
- N-((3-nitrophenyl)carbamothioyl)propionamide (CAS 364340-10-3)
- 5-[(furan-2-yl)methanesulfonyl]-2-methylpyrimidin-4-amine (CAS 882259-93-0)
- SE-(triphenylgermyl) benzoselenoate (CAS 141858-70-0)
- tert-Butyl methyl(5-(3-oxoprop-1-yn-1-yl)pyrimidin-2-yl)carbamate (CAS 2762239-44-9)
- Berylliumphosphate (CAS 13598-15-7)
- 5-Amino-2-(2-fluorophenyl)-2,4-dihydro-3H-pyrazol-3-one (CAS 97096-91-8)
- 5-Iodo-3-phenylpyrazin-2-amine (CAS 2090128-41-7)
- Cloprednol (CAS 5251-34-3)
- 3-(hydroxymethyl)pyrrolidin-2-one (CAS 76220-94-5)
- Ethyl 1H-imidazol-1-yl succinate (CAS 146234-46-0)
- 1-{1-[(pyridin-2-yl)methyl]piperidin-4-yl}-1H-indole (CAS 594827-31-3)
- Calcium-Like Peptide 3 (CAS 261969-05-5)
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