4-(Phthalimidomethyl)phenylboronic Acid Pinacol Ester CAS 138500-87-5
| CAS No. | 138500-87-5 |
| Molecular Formula | C21H22BNO4 |
| Molecular Weight | 363.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-(Phthalimidomethyl)phenylboronic Acid Pinacol Ester.
4-(Phthalimidomethyl)phenylboronic Acid Pinacol Ester (CAS 138500-87-5), molecular formula C21H22BNO4 and molecular weight 363.21 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C21H22BNO4, 4-(Phthalimidomethyl)phenylboronic Acid Pinacol Ester 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 363.21 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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.
CATO manufactures 4-(Phthalimidomethyl)phenylboronic Acid Pinacol Ester under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C21H22BNO4 |
| Molecular Weight | 363.21 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 1 |
Related Phthalimidomethyl Standards
Recommended Standards
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- (3-Bromo-2-nitrophenyl)methanol (CAS 1261475-45-9)
- Phosphazene ligand P<SUB>2</SUB>-tert-butyl solution (CAS 111324-03-9)
- 7-Chloro-2-phenylquinoline-4-carboxylic Acid (CAS 5439-80-5)
- N-(furan-2-ylmethyl)-2-(piperidin-1-yl)ethan-1-amine (CAS 100525-71-1)
- 6-Bromo-2-methyl-1,2,3,4-tetrahydroisoquinoline (CAS 59961-00-1)
- [Ser39-OH] Tirzepatide (CAS CATO-C4X-324041)
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