Fluorescent brightener 378 CAS 164908-53-6
| CAS No. | 164908-53-6 |
| Molecular Formula | C30H26O2 |
| Molecular Weight | 418.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 418.53 g/mol gives Fluorescent brightener 378 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Fluorescent brightener 378 (CAS 164908-53-6), molecular formula C30H26O2 and molecular weight 418.53 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Fluorescent brightener 378 (C30H26O2) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 18.0, corresponding to approximately 18 ring(s) or double-bond equivalent(s). With a molecular weight of 418.53 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C30H26O2 |
| Molecular Weight | 418.53 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2004 |
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Recommended Standards
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- Semaglutide Impurity 165 (CAS CATO-C4X-2226165)
Why CATO?
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