4,4,5,5-Tetramethyl-2-(spiro[fluorene-9,9'-xanthen]-3-yl)-1,3,2-dioxaborolane CAS 2225963-98-2
| CAS No. | 2225963-98-2 |
| Molecular Formula | C31H27BO3 |
| Molecular Weight | 458.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4,4,5,5-Tetramethyl-2-(spiro[fluorene-9,9'-xanthen]-3-yl)-1,3,2-dioxaborolane meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
4,4,5,5-Tetramethyl-2-(spiro[fluorene-9,9'-xanthen]-3-yl)-1,3,2-dioxaborolane (CAS 2225963-98-2), molecular formula C31H27BO3 and molecular weight 458.36 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4,4,5,5-Tetramethyl-2-(spiro[fluorene-9,9'-xanthen]-3-yl)-1,3,2-dioxaborolane (C31H27BO3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C31H27BO3 |
| Molecular Weight | 458.36 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) | 18.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
Related Tetramethyl Standards
- 4,4,5,5-Tetramethyl-2-(spiro[fluorene-9,9'-xanthen]-2-yl)-1,3,2-dioxaborolane (CAS 1160862-12-3)
- 4,4,5,5-Tetramethyl-2-(spiro[fluorene-9,9'-xanthen]-4-yl)-1,3,2-dioxaborolane (CAS 1609484-75-4)
- 4,4,5,5-Tetramethyl-2-(spiro[fluorene-9,9'-xanthen]-2'-yl)-1,3,2-dioxaborolane (CAS 2106888-79-1)
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- 4,4,5,5-Tetramethyl-2-(3-(10-phenylanthracen-9-yl)phenyl)-1,3,2-dioxaborolane (CAS 1023674-81-8)
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Recommended Standards
- Di-tert-butyl (2S,4S)-4-(3-bromo-5-fluorobenzyl)pyrrolidine-1,2-dicarboxylate (CAS 2442511-74-0)
- 3-(5-{[(3,4-dichlorophenyl)methyl]sulfanyl}-4-ethyl-4H-1,2,4-triazol-3-yl)-1-phenyl-1,4-dihydropyridazin-4-one (CAS 478063-60-4)
- tert-Butyl (tert-butoxycarbonyl)(2-cyano-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl)carbamate (CAS 2378054-85-2)
- 3-(5-((2,6-Dichlorobenzyl)thio)-4-ethyl-4H-1,2,4-triazol-3-yl)-1-phenylpyridazin-4(1H)-one (CAS 478063-62-6)
- (5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)methanamine (CAS 880495-82-9)
- (S)-1-((1-Methylpyrrolidin-2-yl)methyl)piperazine (CAS 224309-72-2)
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- 6-(Prop-2-yn-1-ylamino)pyrimidin-2(1H)-one (CAS 193275-31-9)
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- Ethyl 3-hydroxy-6-(trifluoromethyl)picolinate (CAS 1804096-65-8)
- 3-(4-Chloro-2-(trifluoromethyl)phenyl)propanoic acid (CAS 916420-46-7)
- 2-((6-Bromoquinazolin-4-yl)amino)ethan-1-ol (CAS 99057-99-5)
- 4-Chloro-N-isobutylquinazoline-7-carboxamide (CAS 1092460-43-9)
- Semaglutide Impurity 7 (CAS CATO-C4X-22267)
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