[5,5'-Biquinoline]-8,8'-diol CAS 93656-21-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 93656-21-4 |
| Molecular Formula | C18H12N2O2 |
| Molecular Weight | 288.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
[5,5'-Biquinoline]-8,8'-diol (CAS 93656-21-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C18H12N2O2. Molecular weight: 288.30 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C18H12N2O2 |
| Molecular Weight | 288.30 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Nitrogen Atoms | 2 |
Related Biquinoline Standards
- [8,8'-Biquinoline]-7,7'-diol (CAS 829666-42-4)
- 2H-[1,2'-Biquinoline]-2-thione (CAS 92919-36-3)
- [2,3'-Biquinoline]-2'-carbonitrile (CAS 62737-95-5)
- [2,3'-Biquinoline]-2'-carboxamide (CAS 62737-96-6)
- [2,3'-Biquinoline]-2'-carboxylic acid (CAS 62737-97-7)
- 2,2'-Biquinoline (CAS 119-91-5)
- 6,6'-Biquinoline (CAS 612-79-3)
- 8,8'-Biquinoline (CAS 60021-28-5)
Recommended Standards
- [(3-Methyl-6-oxo-7,8,9,10-tetrahydro-6H-benzo[c]-chromen-1-yl)oxy]acetic acid (CAS 304896-83-1)
- (E)-Ethyl 5-(4-methoxybenzylidene)-2-methyl-4-oxo-4,5-dihydrofuran-3-carboxylate (CAS 60404-04-8)
- 1-((Benzyloxy)carbonyl)-4-cyanopiperidine-4-carboxylic acid (CAS 2248355-18-0)
- ((1R,2R)-2-fluorocyclohexyl)methanamine (CAS 1903427-70-2)
- 2,3,4,9-Tetrahydro-1H-carbazole-8-carboxamide (CAS 352549-40-7)
- 4-(5,6-Dimethylbenzo[d]oxazol-2-yl)-N,N-dimethylaniline (CAS 1706464-24-5)
- 7’-fluoro-1’,2’-dihydrospiro[cyclopentane-1,3’-indole] (CAS 1368756-19-7)
- 3-(4-(Benzyloxy)-1H-indol-3-yl)-3-oxopropanenitrile (CAS 1415393-23-5)
- 5-Imino-4-methyl-4,5-dihydro-1,3,4-thiadiazole-2-sulfonamide (CAS 86029-46-1)
- Tau Peptide (244-274) (Repeat 1 Domain) trifluoroacetate salt (CAS 330456-24-1)
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