Iomeprol Impurity 18 CAS CATO-C4X-182018
| CAS No. | CATO-C4X-182018 |
| Molecular Formula | C16H21I2N3O8 |
| Molecular Weight | 637.16 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Iomeprol Impurity 18 (CAS CATO-C4X-182018, C16H21I2N3O8) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Iomeprol Impurity 18 (C16H21I2N3O8) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage, iodine substitution. 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.
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.
As a certified reference material (CRM), Iomeprol Impurity 18 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 | C16H21I2N3O8 |
| Molecular Weight | 637.16 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | I-containing |
| Nitrogen Atoms | 3 |
Related Iomeprol Standards
- Iomeprol Impurity 1 (CAS 196309-10-1)
- Iomeprol Impurity 6 (CAS CATO-C4X-18206)
- Iomeprol Impurity 7 (CAS CATO-C4X-18207)
- Iomeprol Impurity 10 (CAS CATO-C4X-182010)
- Iomeprol Impurity 9 (CAS CATO-C4X-18209)
- Iomeprol Impurity 24 (CAS CATO-C4X-182024)
- Iomeprol Impurity 15 (CAS CATO-C4X-182015)
- Iomeprol Impurity 5 (CAS CATO-C4X-18205)
Recommended Standards
- Iodixanol Impurity 15 (CAS CATO-C4X-166315)
- Sulforhodamine 101 acid chloride Texas Red 9-[4-(Chlorosulfonyl)-2-sulfophenyl]-2,3,6,7,12,13,16,17-octahydro-1H,5H,11H,15H-xantheno[2,3,4-ij:5,6,7-i'j']diquinolizin-18-ium, inner salt 82354-19-6 (CAS 82354-19-6)
- 3-Chloro-N-((S)-1-(1,3-dioxoisoindolin-2-yl)-3-(4-(8-((S)-1-hydroxyethyl)imidazo[1,2-a]pyridin-2-yl)phenyl)propan-2-yl)-4-isopropoxybenzamide (CAS 1240137-67-0)
- 3-(2-(4-Hydroxy-3,5-diiodostyryl)-3,3-dimethyl-3H-indol-1-ium-1-yl)propane-1-sulfonate (CAS 145876-11-5)
- Vinorelbine EP Impurity A (CAS CATO-C4X-26422)
- Liraglutide (13-21) TFA Salt (CAS CATO-C4X-19928)
- Cloxacillin Impurity 14 (CAS CATO-C4X-159714)
- 1-(4-methoxybenzyl)piperazin-2-one (CAS 893747-38-1)
- 5-Amino-N-(4-(chlorodifluoromethoxy)phenyl)-1-(4-methoxybenzyl)-1H-1,2,3-triazole-4-carboxamide (CAS 524036-00-8)
- Thietan-3-one 1,1-Dioxide (CAS 1599-23-1)
- 4-Chloro-5-(2-chlorophenyl)-2-(thiophen-2-ylmethyl)thieno[2,3-d]pyrimidine (CAS 885460-58-2)
- Sodium (quinolin-8-yl)sulfanide (CAS 2801-16-3)
- Letermovir impurity 140 (CAS CATO-C4X-2915140)
- Acetyl Hexapeptide-39 (CAS 1382088-38-1)
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