3,5-Diphenyl-1-(m-tolyl)formazan CAS 71274-65-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 71274-65-2 |
| Molecular Formula | C20H18N4 |
| Molecular Weight | 314.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,5-Diphenyl-1-(m-tolyl)formazan (CAS 71274-65-2) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C20H18N4. Molecular weight: 314.38 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C20H18N4 |
| Molecular Weight | 314.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Nitrogen Atoms | 4 |
Related Diphenyl Standards
- 3,5-Diphenyl-1-(p-tolyl)formazan (CAS 13412-07-2)
- 1,5-Diphenyl-3-(p-tolyl)formazan (CAS 1622-12-4)
- 2,6-Diphenyl-7-propylimidazo[1,2-b][1,2,4]triazine (CAS 90217-98-4)
- 3,5-Diphenyl-1-(o-tolyl)formazan (CAS 83809-73-8)
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Recommended Standards
- 3,3-Di-p-tolylisobenzofuran-1(3H)-one (CAS 28864-65-5)
- 3,3'-Diisopropyl-2H,2'H-[5,5'-bithiazolylidene]-2,2',4,4'(3H,3'H)-tetraone (CAS 924868-28-0)
- 3,6-di-tert-butyl (2S)-2-(hydroxymethyl)-3,6-diazabicyclo[3.1.0]hexane-3,6-dicarboxylate (CAS 2227202-46-0)
- 1,3-Dihydroisobenzofuran-5-carbonitrile (CAS 1027823-65-9)
- 2-(2-(Pyrrolidin-1-yl)phenyl)ethan-1-amine (CAS 1344330-78-4)
- Esomeprazole Impurity 131 (CAS CATO-C4X-1112131)
- Di-n-butyl diacrylatetin (CAS 21843-46-9)
- (4-MEthoxy-pyridin-2-yl)-methyl-carbamic acid tert-butyl ester (CAS 1104455-49-3)
- 1-Allyl-6,7-dimethoxy-3-phenylquinazoline-2,4(1H,3H)-dione (CAS 903468-92-8)
- Semaglutide impurity 69 (CAS CATO-C4X-222669)
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