9,9-Bis(3,4-dihydroxyphenyl)fluorene CAS 351521-78-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 351521-78-3 |
| Molecular Formula | C25H18O4 |
| Molecular Weight | 382.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 9,9-Bis(3,4-dihydroxyphenyl)fluorene (CAS 351521-78-3), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C25H18O4. Molecular weight: 382.41 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C25H18O4 |
| Molecular Weight | 382.41 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
Related Bis Standards
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- 9,10-Bis(3,5-dihydroxyphenyl)anthracene (CAS 153715-08-3)
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Recommended Standards
- 7-Nitro-2-[2-(4-phenylpiperazin-1-yl)ethyl]-3,4-dihydro-2H-1,4-benzoxazin-3-one (CAS 866133-86-0)
- Benzyl 4-(2,5-dimethoxyphenyl)-6-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate (CAS 296262-55-0)
- 4-[4-(4-Methylbenzoyl)piperazino]-3-nitrobenzenecarbaldehyde O-methyloxime (CAS 383147-17-9)
- 1,8-Bis(4-bromophenoxy)octane (CAS 117499-25-9)
- (1R)-1-Phenyl-3-azabicyclo[3.1.0]hexane-2,4-dione (CAS 66504-37-8)
- 4-(2-Ethoxyethyl)benzenesulfonyl chloride (CAS 1351385-78-8)
- Progesterone Impurity 43 (CAS CATO-C4X-150243)
- Paliperidone Impurity 31 (CAS 1172995-11-7)
- 5-((3,4-Dimethylphenoxy)methyl)thiophene-2-carboxylic acid (CAS 934080-82-7)
- Liraglutide Impurity 19 TFA Salt (CAS CATO-C4X-199219)
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