8H-Dibenzo[a,mn]tetracen-8-one CAS 5783-39-1
| CAS No. | 5783-39-1 |
| Molecular Formula | C25H36O |
| Molecular Weight | 352.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
8H-Dibenzo[a,mn]tetracen-8-one (CAS 5783-39-1), molecular formula C25H36O and molecular weight 352.55 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C25H36O, 8H-Dibenzo[a,mn]tetracen-8-one contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 352.55 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).
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 | C25H36O |
| Molecular Weight | 352.55 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
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Recommended Standards
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- 2,4,6-trimethyl-1,3,5,2,4,6-trioxatriborinane 823-96-1 A10031 Trimethylboroxine (CAS 823-96-1)
- 1-(3-(Trifluoromethoxy)phenyl)piperazine (CAS 54711-69-2)
- 3-(3-Ethylphenoxy)propanoic acid (CAS 926260-79-9)
- 3-phenoxypyrrolidine,HCL (CAS 931581-76-9)
- 2-((4-Bromobenzyl)thio)-3-ethyl-5,6-dimethylthieno[2,3-d]pyrimidin-4(3H)-one (CAS 577962-42-6)
- 4-Bromo-2-iodo-3-nitropyridine (CAS 1805506-94-8)
- (4R)-4-amino-3,3-dimethylpyrrolidin-2-one (CAS 1638744-44-1)
- Semaglutide impurity 70 (CAS CATO-C4X-222670)
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