9,9'-Spirobi[fluorene]-2,7-diyldiboronic acid CAS 1222537-26-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1222537-26-9 |
| Molecular Formula | C25H18B2O4 |
| Molecular Weight | 404.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
9,9'-Spirobi[fluorene]-2,7-diyldiboronic acid (CAS 1222537-26-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C25H18B2O4. Molecular weight: 404.03 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C25H18B2O4 |
| Molecular Weight | 404.03 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
Related Spirobi Standards
- 9,9'-Spirobi[fluorene]-2',7-diyldiboronic acid (CAS 1222007-94-4)
- 3-Phenyl-9,9'-spirobi[fluoren]-2-amine (CAS 2214221-84-6)
- 1,1'-(9,9'-Spirobi[fluorene]-2,2'-diyl)diethanone (CAS 22824-83-5)
- 9,9'-Spirobi[fluorene]-3,3',6,6'-tetraamine (CAS 622011-41-0)
- 2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1161009-89-7)
- 2-(9,9'-Spirobi[fluoren]-3-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1346007-05-3)
- 2-(9,9''-Spirobi[fluoren]-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 884336-44-1)
- 9,9'-Spirobi[fluoren]-3-ylboronic acid (CAS 1421789-04-9)
Recommended Standards
- 4-((2,4-Dichlorobenzyl)oxy)-3-iodobenzonitrile (CAS 1706434-38-9)
- Bromfenvinphos (CAS 33399-00-7)
- 6-Bromo-1-(cyclopropylmethyl)-3-iodoquinolin-4(1H)-one (CAS 1320361-69-0)
- 2-(2-Fluoro-4-methoxyphenyl)ethanamine (CAS 402832-76-2)
- Moracin O (CAS 123702-97-6)
- trans-4-phenyl-3-buten-2-one-1,1,1,3-d<SUB>4</SUB> (CAS 130208-38-7)
- Benzyl 1-morpholino-1-oxopropan-2-ylcarbamate (CAS 56414-77-8)
- 7-methanesulfonyl-2,3,4,5-tetrahydro-1H-3-benzazepine hydrochloride (CAS 123018-28-0)
- 3-(3-Fluorophenyl)-1,2,4-oxadiazole-5-thiol (CAS 1342386-00-8)
- Semaglutide impurity 84 (CAS CATO-C4X-222684)
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