1-(5,7-Diphenyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)pyrrolidine-2,5-dione CAS 836640-55-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 836640-55-2 |
| Molecular Formula | C21H15N5O2 |
| Molecular Weight | 369.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1-(5,7-Diphenyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)pyrrolidine-2,5-dione (CAS 836640-55-2), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C21H15N5O2. Molecular weight: 369.38 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C21H15N5O2 |
| Molecular Weight | 369.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 5 |
Related Diphenyl Standards
- 4-(1,3-Diphenyl-4,5-dihydro-1H-pyrazol-5-yl)-N,N-diethylaniline (CAS 88439-40-1)
- 13589-13-4 3-Benzyl-2,6-diphenyl-2H-thiopyran-5-carbaldehyde DTXSID70347631 (CAS 13589-13-4)
- 2-(3,5-Diphenyl-1H-1,2,4-triazol-1-yl)-N-(p-tolyl)acetamide (CAS 332909-48-5)
- N-(1,3-Diphenyl-1H-pyrazol-5-yl)-2-phenylhydrazinecarboximidamide (CAS 83584-31-0)
- N-((1,3-Diphenyl-1H-pyrazol-5-yl)methylene)-4-nitroaniline (CAS 89185-70-6)
- 4,9-Diphenyl-3a,4,9,9a-tetrahydro-4,9-epoxynaphtho[2,3-c]furan-1,3-dione (CAS 75925-22-3)
- Diphenyl-3-isopropylphenyl phosphate (CAS 69515-46-4)
- (R)-2-[Diphenyl[(triethylsilyl)oxy]methyl]pyrrolidine (CAS 1100289-57-3)
Recommended Standards
- 1-([1,1'-Biphenyl]-4-yl)-3-((4-(trifluoromethyl)phenyl)amino)propan-1-one (CAS 883793-80-4)
- 3,3,3-trifluoro-1-{4-methyl-3-[methyl({5-methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl})amino]piperidin-1-yl}propan-1-one (CAS 344419-71-2)
- tert-Butyl 4-(4-Ethoxy-1,1,1-trifluoro-4-oxobutan-2-yloxy)piperidine-1-carboxylate (CAS 1864074-89-4)
- (Z)-4-((1S,3aR,5S,11R,14aS)-8-Hydroxy-2,2,11-trimethyl-13-(3-methylbut-2-en-1-yl)-11-(4-methylpent-3-en-1-yl)-4,7-dioxo-2,3a,4,5,7,11-hexahydro-1H-1,5-methanofuro[3,2-g]pyrano[3,2-b]xanthen-3a-yl)-2-methylbut-2-enamide (CAS 286935-60-2)
- 5-Fluoro-2,3-dihydro-1H-inden-1-amine hydrochloride (CAS 223754-20-9)
- 2-Methoxyaniline hydrochloride (CAS 134-29-2)
- 2-(5-(Chlorodifluoromethoxy)-2-methyl-1H-indol-3-yl)ethan-1-amine hydrochloride (CAS 1219183-81-9)
- Dapagliflozin Impurity 135 (CAS CATO-C4X-1138135)
- 1,4-Cyclohexanedimethanol Dilaurate (CAS 135025-34-2)
- [Ser]8-Acetylated Semaglutide (CAS CATO-C4X-2226218)
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 13829788188 / jacky.chen@cato-chem.com