N-Acetyl Mesalazine-d3 Impurity 2 CAS 93968-79-7
| CAS No. | 93968-79-7 |
| Molecular Formula | - |
| Molecular Weight | 198.19 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
N-Acetyl Mesalazine-d3 Impurity 2 (CAS 93968-79-7) is a certified pharmaceutical impurity reference standard with the molecular formula C9H6D3NO4 and a molecular weight of 198.19 g/mol.
The molecular framework of N-Acetyl Mesalazine-d3 Impurity 2 (C9H6D3NO4) is characterized by deuterium isotope labeling, an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), N-Acetyl Mesalazine-d3 Impurity 2 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.
Physical & Chemical Properties
| Molecular Formula | C9H6D3NO4 |
| Molecular Weight | 198.19 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Nitrogen Atoms | 1 |
Recommended Standards
- N-Acetyl Mesalamine-d3 Impurity 1 (CAS 1309935-89-4)
- Flomoxef Impurity 10 (CAS CATO-C4X-138210)
- Mosapride Impurity 64 (CAS CATO-C4X-104464)
- 2-(7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazin-6-yl)acetic acid (CAS 1017393-74-6)
- Mephenytoin Impurity 1 (CAS 1173022-56-4)
- Amorolfine Impurity 55 (CAS CATO-C4X-154255)
- Vonoprazan Impurity 253 (CAS CATO-C4X-1020253)
- 2-Bromo-6-fluoro-3-hydroxybenzaldehyde (CAS 1780708-84-0)
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- 1-(9-Methyl-9H-carbazol-3-yl)ethanone (CAS 1484-05-5)
- Tirzepatide (CAS 2023788-19-2)
Why CATO?
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