1,5-Diphenyl-3-(p-tolyl)formazan CAS 1622-12-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1622-12-4 |
| Molecular Formula | C20H18N4 |
| Molecular Weight | 314.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,5-Diphenyl-3-(p-tolyl)formazan (CAS 1622-12-4) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C20H18N4. Molecular weight: 314.38 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
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.) | 1957 |
| Nitrogen Atoms | 4 |
Related Diphenyl Standards
- 3,5-Diphenyl-1-(p-tolyl)formazan (CAS 13412-07-2)
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- 3,5-Diphenyl-1-(m-tolyl)formazan (CAS 71274-65-2)
- 3,5-Diphenyl-1-(o-tolyl)formazan (CAS 83809-73-8)
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Recommended Standards
- (2E)-1-{[1,1'-Biphenyl]-4-yl}-3-(2-methoxyphenyl)prop-2-en-1-one (CAS 1539275-18-7)
- MAZ51 (CAS 163655-37-6)
- <I>N,N′</I>-bis-Boc-1<I>H</I>-1-guanidinopyrazole (CAS 152120-54-2)
- 3-(2,4-Dinitrophenoxy)pyridine (CAS 40604-27-1)
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- 3-Benzoyloxyacetophenone (CAS 139-28-6)
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- 6-(Trifluoromethoxy)-1H-indole-2-carboxylic acid (CAS 923259-70-5)
- Semaglutide impurity 251 (CAS CATO-C4X-2226251)
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