2-(7,8-Difluoro-3-(methoxymethoxy)naphthalen-1-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane CAS 2621935-35-9
| CAS No. | 2621935-35-9 |
| Molecular Formula | C18H21BF2O4 |
| Molecular Weight | 350.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
2-(7,8-Difluoro-3-(methoxymethoxy)naphthalen-1-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2621935-35-9) is a high-purity analytical reference standard with the molecular formula C18H21BF2O4 and a molecular weight of 350.16 g/mol.
Owing to a flavonoid core, a hydroxyl group, an ether linkage, fluorine substitution, 2-(7,8-Difluoro-3-(methoxymethoxy)naphthalen-1-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 350.16 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C18H21BF2O4 |
| Molecular Weight | 350.16 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2001 |
| Halogen Content | F-containing |
Related Difluoro Standards
- 2-(5,6-Difluoro-4-(methoxymethoxy)naphthalen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2621935-28-0)
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- 6,7-Difluoro-1-methyl-3-(m-tolylsulfonyl)quinolin-4(1H)-one (CAS 1326894-33-0)
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- 2,2-Difluoro-2-(4-fluorophenoxy)-N-[3-(trifluoromethyl)phenyl]acetamide (CAS 338792-39-5)
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Recommended Standards
- 2-Bromo-1-[2-nitro-3-(phenylmethoxy)phenyl]ethanone (CAS 224044-61-5)
- 2-(2-((4-Bromophenyl)amino)-2-oxoethoxy)benzoic acid (CAS 329220-18-0)
- 2-Chloro-1-{1-[4-chloro-3-(trifluoromethyl)phenyl]-2,5-dimethyl-1h-pyrrol-3-yl}ethan-1-one (CAS 329266-67-3)
- 2-(((Benzyloxy)carbonyl)amino)-5-bromobenzoic acid (CAS 778601-73-3)
- rel-(3aS,6R,7aS)-6-Ethyl-1-oxo-2,3,3a,6,7,7a-hexahydro-1H-indene-4-carboxylic acid (CAS 66322-23-4)
- N-(4-(2-Carbamoylphenoxy)but-2-yn-1-yl)-2-methylbenzamide (CAS 1421527-86-7)
- 3-Methyl-2-oxo-1-oxaspiro[4.5]Dec-3-ene-4-carboxylic acid (CAS 29542-72-1)
- Losartan EP Impurity K (CAS 114798-36-6)
- Gly-Pro p-nitroanilide (CAS 60189-43-7)
- 3-Acetyl-6-bromo-4(1h)-quinolinone (CAS 1187551-47-8)
- Ethyl 2-((3-hydroxyphenyl)sulfonyl)-2-methylpropanoate (CAS 2113411-01-9)
- Phenyl(2,4,5-trimethylphenyl)methanone (CAS 52890-52-5)
- Benzyl 3,4-dihydroquinoxaline-1(2H)-carboxylate (CAS 53967-47-8)
- Peptide 432 (CAS CATO-CPTD788432)
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