9,9'-Spirobi[fluorene]-2,2'-diamine CAS 67665-45-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 67665-45-6 |
| Molecular Formula | C25H18N2 |
| Molecular Weight | 346.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 9,9'-Spirobi[fluorene]-2,2'-diamine (CAS 67665-45-6), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C25H18N2. Molecular weight: 346.42 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C25H18N2 |
| Molecular Weight | 346.42 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | 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.) | 1976 |
| Nitrogen Atoms | 2 |
Related Spirobi Standards
- 77-08-7 1,1'-Spirobi(indan)-5,5',6,6'-tetrol, 3,3,3',3'-tetramethyl- (8CI) 1,1'-Spirobi(1H-indene)-5,5',6,6'-tetrol, 2,2',3,3'-tetrahydro-3,3,3',3'-tetramethyl- 1,1'-Spirobi(1H-inden)-5,5',6,6'-tetrol, 2,2',3,3'-tetrahydro-3,3,3',3'-tetramethyl- 2,2',3,3'-Tetrahydro-3,3,3',3'-tetramethyl-1,1'-spirobi(1H-indene)-5,5',6,6'-tetrol AI3-16787 EINECS 201-003-1 NSC 512922 1,1'-Spirobi(indane-5,6-diol), 3,3,3',3'-tetramethyl- TTS 5 AI 3-16787 (CAS 77-08-7)
- 9,9'-Spirobi[fluoren]-3-ylboronic acid (CAS 1421789-04-9)
- 9,9’-Spirobi[fluorene]-4-boronic Acid (CAS 1421789-05-0)
- 9,9'-Spirobi[9H-9-silafluorene] (CAS 159-68-2)
- 9,9'-Spirobi[9H-fluoren]-2-amine (CAS 118951-68-1)
- 9,9'-Spirobi[fluoren]-4-amine (CAS 1579281-06-3)
- 9,9'-Spirobi[fluorene]-3,3',6,6'-tetraamine (CAS 622011-41-0)
- 9,9’-Spirobi[9H-fluorene] (CAS 159-66-0)
Recommended Standards
- 8-Benzyl 3-ethyl 2,8-diazaspiro[4.5]decane-3,8-dicarboxylate (CAS 2306261-41-4)
- benzyl (1S,4S)-7-((tert-butoxycarbonyl)amino)-2-azabicyclo[2.2.1]heptane-2-carboxylate (CAS 2382855-12-9)
- 8-Benzyl 3-ethyl (S)-2,8-diazaspiro[4.5]decane-3,8-dicarboxylate (CAS 2306247-74-3)
- 5-Fluoro-2-(1,2,4-oxadiazol-3-yl)benzaldehyde (CAS 1262413-19-3)
- Ethyl 2-oxo-6-((phenylsulfonyl)methyl)-4-(p-tolyl)-1,2,3,4-tetrahydropyrimidine-5-carboxylate (CAS 902277-65-0)
- Ethyl 2-isopropyl-5-nitro-pyrazole-3-carboxylate (CAS 1245772-15-9)
- 4-((4-Chlorophenyl)diazenyl)-1-hydroxy-3H-isochromen-3-one (CAS 86671-86-5)
- 1-(3,4-Dihydroxy-4,5-dihydrofuran-2-yl)ethanone (CAS 19872-46-9)
- 2-(2-Fluorophenyl)-3-(styrylsulfonyl)thiazolidine (CAS 853388-09-7)
- Semaglutide impurity 194 (CAS CATO-C4X-2226194)
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