2,3,6,7-Tetramethoxy-9,9'-spirobi[fluorene] CAS 821785-24-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 821785-24-4 |
| Molecular Formula | C29H24O4 |
| Molecular Weight | 436.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,3,6,7-Tetramethoxy-9,9'-spirobi[fluorene] (CAS 821785-24-4) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C29H24O4. Molecular weight: 436.50 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C29H24O4 |
| Molecular Weight | 436.50 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
Related Tetramethoxy Standards
- 5- Oxo- 1- [(2, 3, 6, 7- tetramethoxy- 9- phenanthrenyl) methyl] -L-proline (CAS 87227-00-7)
- 5,6,7,8-Tetramethoxy-2-(3,4,5-trimethoxyphenyl)-4H-chromen-4-one (CAS 6965-36-2)
- 3,3'-(2,3,5,6-Tetramethoxy-1,4-phenylene)bis(1H-indole) (CAS 287117-66-2)
- 5-Oxo-1-[(2,3,6,7-tetramethoxy-9-phenanthrenyl)methyl-L-proline Methyl Ester (CAS 1203657-51-5)
- 2,3,7,8-Tetramethoxy-2,3,7,8-tetramethyldecahydrobenzo[1,2-b:4,5-b']bis([1,4]dioxine)-5,10-diol (CAS 176798-27-9)
- 5,5',6,6'-Tetramethoxy-3,3,3',3'-tetramethyl-2,2',3,3'-tetrahydro-1,1'-spirobi[indene] (CAS 6307-95-5)
- 1,1,3,3-Tetramethoxy-1,3-bis(3,3,3-trifluoropropyl)disiloxane (CAS 109961-44-6)
- 3,3,14,14-Tetramethoxy-2,15-dioxa-3,14-disilahexadecane (CAS 122185-09-5)
Recommended Standards
- 1-(2-((2-((2-(2-oxo-2,5-Dihydro-1H-pyrrol-1-yl)phenyl)thio)ethyl)thio)phenyl)-1H-pyrrole-2,5-dione (CAS 68555-54-4)
- 2,7-Bis(3-(dimethylamino)propyl)benzo[lmn][3,8]phenanthroline-1,3,6,8(2H,7H)-tetraone (CAS 3436-54-2)
- (S)-ethyl 3-(4-(2,7-naphthyridin-1-ylamino)phenyl)-2-(tert-butoxycarbonylamino)propanoate (CAS 369648-62-4)
- (3R,4R)-3-Amino-1-hydroxy-4-methylpyrrolidin-2-one (CAS 130931-65-6)
- 2-((5-(2-Bromophenyl)-1,3,4-oxadiazol-2-yl)thio)-N-(o-tolyl)acetamide (CAS 332114-24-6)
- (S)-1-Isopropyl-2-methylpiperazine (CAS 807319-94-4)
- (2R,4R)-4-(Aminomethyl)-1-[(tert-butoxy)carbonyl]pyrrolidine-2-carboxylic acid (CAS 132622-81-2)
- [(2-bromo-4,5-dimethoxyphenyl)methyl]hydrazine hydrochloride (CAS 1094161-62-2)
- 6-Chloro-8,9-dimethyl-9H-purin-2-amine (CAS 1239765-73-1)
- Tau Peptide (379-408) trifluoroacetate salt (CAS 1246357-53-8)
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