3-Ethyl-5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyrimidine CAS 154641-04-0
| CAS No. | 154641-04-0 |
| Molecular Formula | C7H12N4 |
| Molecular Weight | 152.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-Ethyl-5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyrimidine 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.
3-Ethyl-5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyrimidine (CAS 154641-04-0) is a high-purity analytical reference standard with the molecular formula C7H12N4 and a molecular weight of 152.20 g/mol.
Based on its molecular formula C7H12N4, 3-Ethyl-5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyrimidine contains a nitrile group, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 152.20 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).
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.
Physical & Chemical Properties
| Molecular Formula | C7H12N4 |
| Molecular Weight | 152.20 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2001 |
| Nitrogen Atoms | 4 |
Recommended Standards
- 5-Cyclopropyl-1-ethyl-1h-1,2,3-triazol-4-amine (CAS 1536874-44-8)
- 1-(pyrrolidin-3-ylmethyl)-1H-1,2,3-triazole (CAS 1547757-37-8)
- 2-[(Dimethylamino)methyl]pyrimidin-5-amine (CAS 1516593-79-5)
- 1-Methyl-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-b]pyridin-3-amine (CAS 1553231-55-2)
- N,N'-[(4-AMino-1,2-phenylene)bis(oxyethane-2,1-diyl)]diacetamide hydrochloride (CAS 2109439-76-9)
- 6-Chloro-2-(thiophen-2-yl)quinazolin-4(1H)-one (CAS 167994-99-2)
- 2-(Chloromethyl)-6-(difluoromethyl)-3-iodo-4-(trifluoromethyl)pyridine (CAS 1805460-45-0)
- 1,1,1-trifluoro-3-nitrobutan-2-ol (CAS 434-39-9)
- 5-Aminoisophthalic Acid Monomethyl Ester (CAS 28179-47-7)
- 2-Bromo-4-(difluoromethyl)-6-(trifluoromethyl)nicotinonitrile (CAS 1805360-18-2)
- (S)-2-(5-fluoro-6-hydroxybenzo[d]thiazol-2-yl)-4,5-dihydrothiazole-4-carboxylic acid (CAS 916661-57-9)
- 3-(3-Bromophenyl)-1-(3,4-difluorophenyl)propan-1-one (CAS 898760-79-7)
- 2-Isopropyl-2,3-dihydrophthalazine-1,4-dione (CAS 17125-47-2)
- Des-Ser34-Gly33Tirzepatide (CAS CATO-CPTD788941)
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