| CAS No. | 298704-22-0 |
| Molecular Formula | - |
| Molecular Weight | 127.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 127.15 g/mol gives 4-Hydroxybenzaldehyde-d5 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 4-Hydroxybenzaldehyde-d5 (CAS 298704-22-0), a certified reference material (molecular formula C7HD5O2, MW 127.15 g/mol) for analytical method development and quality control.
Based on its molecular formula C7HD5O2, 4-Hydroxybenzaldehyde-d5 contains deuterium isotope labeling, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 127.15 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), 4-Hydroxybenzaldehyde-d5 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.
| Molecular Formula | C7HD5O2 |
| Molecular Weight | 127.15 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 7.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |