(S)-2,2'-Bis(methoxymethoxy)-1,1'-binaphthyl-3,3'-diboronic acid pinacol ester CAS 260441-99-4
| CAS No. | 260441-99-4 |
| Molecular Formula | C36H44B2O8 |
| Molecular Weight | 626.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
(S)-2,2'-Bis(methoxymethoxy)-1,1'-binaphthyl-3,3'-diboronic acid pinacol ester (CAS 260441-99-4), molecular formula C36H44B2O8 and molecular weight 626.35 g/mol, is a CATO reference standard with documented purity and traceability.
(S)-2,2'-Bis(methoxymethoxy)-1,1'-binaphthyl-3,3'-diboronic acid pinacol ester (C36H44B2O8) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C36H44B2O8 |
| Molecular Weight | 626.35 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
Recommended Standards
- (R)-2,2'-Bis(methoxymethoxy)-1,1'-binaphthyl-3,3'-diboronic acid pinacol ester (CAS 260442-17-9)
- 6-Carboxy-2’,7’-dichlorofluorescein 3’,6’-Diacetate Succinimidyl Ester (CAS 852299-81-1)
- (2,2'-Bis(methoxymethoxy)-3'-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-[1,1'-binaphthalen]-3-yl)boronic acid (CAS 955405-38-6)
- Dotinurad Impurity 157 (CAS CATO-C4X-2494157)
- 6-Chloropyrazolo[1,5-a]pyridin-5-amine (CAS 1951428-41-3)
- 5-[3-(Aminomethyl)phenyl]-5-methylimidazolidine-2,4-dione (CAS 903557-17-5)
- 2'-Methyl-[1,1'-biphenyl]-4-sulfonyl chloride (CAS 745801-17-6)
- H-Arg-Val-OH (CAS 2896-20-0)
- 6-(4-((2-Fluorophenyl)sulfonyl)piperazin-1-yl)-N-(4-methylpyridin-2-yl)pyridazin-3-amine (CAS 1021114-36-2)
- 8-Methoxy-1-(2-oxopropyl)quinolin-4(1H)-one (CAS 1209326-62-4)
- 4-Carbamoylfuran-2-carboxylic acid (CAS 1315367-95-3)
- (5S)-1,3,9-triazaspiro[4.5]decane-2,4-dione (CAS 2322690-83-3)
- 2-(4-Chloro-3-formylphenyl)acetonitrile (CAS 1822963-05-2)
- Semaglutide impurity 29 (CAS 110990-08-4)
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