2,2',7,7'-Tetramethoxy-9,9'-spirobi[fluorene]-3,3',6,6'-tetracarbonitrile CAS 1801236-34-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1801236-34-9 |
| Molecular Formula | C33H20N4O4 |
| Molecular Weight | 536.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,2',7,7'-Tetramethoxy-9,9'-spirobi[fluorene]-3,3',6,6'-tetracarbonitrile (CAS 1801236-34-9) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C33H20N4O4. Molecular weight: 536.54 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C33H20N4O4 |
| Molecular Weight | 536.54 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 26.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 4 |
Related Tetramethoxy Standards
- 2,2',7,7'-Tetramethoxy-9,9'-spirobi[fluorene]-3,3',6,6'-tetracarbaldehyde (CAS 1801236-33-8)
- (2,5,6,11-tetramethoxy-3,7,9,15-tetramethyl-16,20,22-trioxo-17-azabicyclo[16.3.1]docosa-1(21),8,12,14,18-pentaen-10-yl) carbamate 70563-58-5 Antibiotic Tan 420F D07DIM Herbimycin Herbimycin A Herbimycin A from Streptomyces hygroscopicus [(2R,3S,5S,6R,7S,8E,10S,11S,12E,14E)-2,5,6,11-tetramethoxy-3,7,9,15-tetramethyl-16,20,22-trioxo-17-azabicyclo[16.3.1]docosa-1(21),8,12,14,18-pentaen-10-yl] carbamate [(2R,3S,5S,6R,7S,8E,10S,11S,12Z,14E)-2,5,6,11-tetramethoxy-3,7,9,15-tetramethyl-16,20,22-trioxo-17-azabicyclo[16.3.1]docosa-1(21),8,12,14,18-pentaen-10-yl] carbamate (CAS 70563-58-5)
- 2,2',7,7'-Tetramethoxy-9,9'-spirobi[fluorene]-3,3',6,6'-tetraamine (CAS 1801236-36-1)
- 2,2',7,7'-Tetramethoxy-9,9'-spirobi[fluorene]-3,3',6,6'-tetracarboxylicacid (CAS 1801236-35-0)
- 5-Oxo-1-[(2,3,6,7-tetramethoxy-9-phenanthrenyl)methyl-L-proline Methyl Ester (CAS 1203657-51-5)
- 5- Oxo- 1- [(2, 3, 6, 7- tetramethoxy- 9- phenanthrenyl) methyl] -L-proline (CAS 87227-00-7)
- 2,3,6,7-Tetramethoxy-9,9'-spirobi[fluorene] (CAS 821785-24-4)
- 5,6,7,8-Tetramethoxy-2-(3,4,5-trimethoxyphenyl)-4H-chromen-4-one (CAS 6965-36-2)
Recommended Standards
- DBFphos (CAS 133850-81-4)
- Bisbenzimidazo[2,1-a:2′,1′-a′]anthra[2,1,9-def:6,5,10-d′e′f′]diisoquinoline-10,21-dione (CAS 55034-79-2)
- Mycophenolic Acid Acyl-β-D-glucuronide Allyl Ester (CAS 860615-39-0)
- 2-Methyl-4-nitro-N-(2-(2-(p-tolyl)thiazol-4-yl)ethyl)aniline (CAS 861207-44-5)
- [2-(3,4-Dimethoxyphenyl)ethyl](2-pyridinylmethyl)amine Hydrobromide (CAS 1609399-83-8)
- Belinostat Impurity 2 (CAS 2565-10-8)
- (S)-N-Boc-4-(2-hydroxyethyl)-2,2-dimethyloxazolidine (CAS 147959-18-0)
- Methyl 3,5-dichloro-4-pyridinecarboxylate (CAS 773874-72-9)
- Tert-butyl (S)-3,4-dimethylpiperazine-1-carboxylate (CAS 1152110-42-3)
- Semaglutide impurity 227 (CAS CATO-C4X-2226227)
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