2,2',7,7'-Tetramethoxy-9,9'-spirobi[fluorene]-3,3',6,6'-tetracarbonitrile CAS 1801236-34-9
| 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
Structurally, 2,2',7,7'-Tetramethoxy-9,9'-spirobi[fluorene]-3,3',6,6'-tetracarbonitrile (C33H20N4O4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 26.0, corresponding to approximately 26 ring(s) or double-bond equivalent(s). With a molecular weight of 536.54 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 2,2',7,7'-Tetramethoxy-9,9'-spirobi[fluorene]-3,3',6,6'-tetracarbonitrile (CAS 1801236-34-9), a certified reference material (molecular formula C33H20N4O4, MW 536.54 g/mol) for analytical method development and quality control.
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 | 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)
- 3-{1-[2-(2-fluorophenyl)-2-oxoethyl]-2-oxo-5-phenyl-2,3-dihydro-1H-1,4-benzodiazepin-3-yl}-1-(3-methoxyphenyl)urea (CAS 1796890-46-4)
- 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)
- SBC 110736 (CAS 1629166-02-4)
- 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)
- 2-(Benzylthio)quinazolin-4-ol (CAS 6344-77-0)
- 2,4-Dimethyl-N-((1,3,5-trimethyl-1h-pyrazol-4-yl)methyl)aniline (CAS 1152894-77-3)
- Semaglutide impurity 227 (CAS CATO-C4X-2226227)
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