2,4-Bis(benzyloxy)pyrimidin-5-ylboronic acid CAS 70523-24-9
| CAS No. | 70523-24-9 |
| Molecular Formula | C18H17BN2O4 |
| Molecular Weight | 336.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C18H17BN2O4, 2,4-Bis(benzyloxy)pyrimidin-5-ylboronic acid contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 336.15 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
2,4-Bis(benzyloxy)pyrimidin-5-ylboronic acid (CAS 70523-24-9) is a high-purity analytical reference standard with the molecular formula C18H17BN2O4 and a molecular weight of 336.15 g/mol.
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.
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 | C18H17BN2O4 |
| Molecular Weight | 336.15 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 11.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Nitrogen Atoms | 2 |
Related Bis Standards
- Methyl 3-(benzyloxy)-4-bromo-6-methylpicolinate (CAS 1342906-72-2)
- 4-(Benzyloxy)cyclohex-1-en-1-yl trifluoromethanesulfonate (CAS 317831-30-4)
- 2-(4-((Benzyloxy)carbonyl)-3-(methoxycarbonyl)piperazin-1-yl)acetic acid (CAS 1353945-61-5)
- N-[4-(Benzyloxy)-2-nitro-1-naphthyl]acetamide (CAS 685142-82-9)
- Methyl 3-[3-(benzyloxy)phenyl]-4-fluorobenzoate (CAS 1393441-85-4)
- Methyl 4-[4-(benzyloxy)phenyl]-3-fluorobenzoate (CAS 1820639-95-9)
- Methyl 4-[3-(benzyloxy)phenyl]-3-fluorobenzoate (CAS 1820711-73-6)
- Methyl 4-[3-(benzyloxy)phenyl]-2-fluorobenzoate (CAS 1820734-60-8)
Recommended Standards
- [2-(Tert-butoxycarbonylamino)-3-cyano-7-fluoro-benzothiophen-4-yl]boronic acid (CAS 2892621-47-3)
- 4,4,5,5,5-Pentafluoropentyl (2,2,3,3-tetrafluoropropyl) carbonate (CAS 1980039-61-9)
- (4-Bromophenyl)(4-(trifluoromethyl)piperidin-1-yl)methanone (CAS 956320-62-0)
- 6-Methyl-2,4,6-tris(trifluoromethyl)tetrahydro-2H-pyran-2,4-diol (CAS 429-01-6)
- Barium bromide (CAS 10553-31-8)
- 4-Bromo-7,8,9,10-tetrahydro-6-oxa-2,10a-diazacycloocta[cd]indene (CAS 2088850-44-4)
- 4-Methoxy-3-(pentyloxy)benzenethiol (CAS 1443346-96-0)
- 3-(4-Hydroxy-3-isobutylphenyl)propanenitrile (CAS 475272-06-1)
- N,N-dimethyl-1H-imidazole-4-sulfonamide (CAS 58768-16-4)
- tert-Butyl (4-chloropyridin-3-yl)carbamate (CAS 1068976-14-6)
- Neopuerarin B (CAS 1150314-39-8)
- 5-Amino-2-(trifluoromethyl)benzamide (CAS 1369881-97-9)
- 4-(2-Bromoethyl)piperidine Hydrobromide (CAS 69712-10-3)
- Semaglutide impurity 273 (CAS CATO-C4X-2226273)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com