2-(5,7-Diphenyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)-3a,4,7,7a-tetrahydro-1H-isoindole-1,3(2H)-dione CAS 836639-18-0
| CAS No. | 836639-18-0 |
| Molecular Formula | C25H19N5O2 |
| Molecular Weight | 421.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 421.45 g/mol gives 2-(5,7-Diphenyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)-3a,4,7,7a-tetrahydro-1H-isoindole-1,3(2H)-dione distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-(5,7-Diphenyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)-3a,4,7,7a-tetrahydro-1H-isoindole-1,3(2H)-dione (CAS 836639-18-0) is a high-purity analytical reference standard with the molecular formula C25H19N5O2 and a molecular weight of 421.45 g/mol.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, 2-(5,7-Diphenyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)-3a,4,7,7a-tetrahydro-1H-isoindole-1,3(2H)-dione is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 421.45 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C25H19N5O2 |
| Molecular Weight | 421.45 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 5 |
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Recommended Standards
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- 2-((4-((3-ethynylphenyl)amino)-6-(2-methoxyethoxy)quinazolin-7-yl)oxy)ethyl acetate (CAS 183320-24-3)
- 3,4-Dimethoxy-N-[4-(3-nitrophenyl)-2-thiazolyl]benzenesulfonamide (CAS 199666-03-0)
- 2-((2,5-Difluorobenzyl)amino)-2-methylpropan-1-ol (CAS 1096298-13-3)
- tert-Butyl 3-(fluoromethyl)pyrrolidine-1-carboxylate (CAS 1823655-80-6)
- 4-Bromo-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid (CAS 1257851-79-8)
- Methyl 5-(benzyloxy)-2-bromo-4-methoxybenzoate (CAS 1263155-19-6)
- 2,4-Dichloro-6-cyclopropyl-pyrimidine (CAS 21573-07-9)
- Methyl 2-(4-(tert-butoxycarbonyl)piperazin-1-yl)pyrimidine-5-carboxylate (CAS 1057682-17-3)
- 1-(2-((Cyclopropyl(2-hydroxyethyl)amino)methyl)pyrrolidin-1-yl)ethanone (CAS 1353957-93-3)
- 4,5-Dibromo-N-(2-fluorophenyl)thiophene-2-carboxamide (CAS 1011426-77-9)
- (1R)-1-(4-Methanesulfonylphenyl)ethanamine hydrochloride (CAS 1415257-65-6)
- Semaglutide impurity 37 (CAS CATO-C4X-222637)
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