7-Ethyl-2-methyl-3H-pyrazolo[1,5-b][1,2,4]triazole CAS 151521-40-3
| CAS No. | 151521-40-3 |
| Molecular Formula | C7H10N4 |
| Molecular Weight | 150.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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 supplies 7-Ethyl-2-methyl-3H-pyrazolo[1,5-b][1,2,4]triazole (CAS 151521-40-3), a certified reference material (molecular formula C7H10N4, MW 150.18 g/mol) for analytical method development and quality control.
Based on its molecular formula C7H10N4, 7-Ethyl-2-methyl-3H-pyrazolo[1,5-b][1,2,4]triazole contains a nitrile group, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 150.18 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures 7-Ethyl-2-methyl-3H-pyrazolo[1,5-b][1,2,4]triazole 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 | C7H10N4 |
| Molecular Weight | 150.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2000 |
| Nitrogen Atoms | 4 |
Recommended Standards
- 2-Propyl-1H-pyrazolo[1,5-b][1,2,4]triazole (CAS 151406-59-6)
- 2-Ethyl-7-methyl-3H-pyrazolo[1,5-b][1,2,4]triazole (CAS 151521-54-9)
- 2-Ethyl-6-methyl-1H-pyrazolo[1,5-b][1,2,4]triazole (CAS 151406-47-2)
- 6-Ethyl-2-methyl-1H-pyrazolo[1,5-b][1,2,4]triazole (CAS 151521-69-6)
- 3-Hydroxy-2-ureido-butyric acid (CAS 122331-32-2)
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- 2-Amino-6-(hydroxymethyl)-4-(4-hydroxyphenyl)-8-oxo-4,8-dihydropyrano[3,2-b]pyran-3-carbonitrile (CAS 899366-91-7)
- 4-((6-Amino-3-methyl-2,4-dioxo-1-phenyl-1,2,3,4-tetrahydropyrimidin-5-yl)carbamoyl)-1,2-phenylene diacetate (CAS 176379-12-7)
- 3-Bromo-4-chloro-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridine (CAS 920966-51-4)
- 2-(4-Methoxy-3-(tosyloxy)benzylsulfonyl)acetic acid (CAS 1005494-37-0)
- Semaglutide impurity 74 (CAS CATO-C4X-222674)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com