Iopamidol Impurity 16 CAS 77697-86-0
| CAS No. | 77697-86-0 |
| Molecular Formula | C4H11NO2 |
| Molecular Weight | 105.14 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| 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 Iopamidol Impurity 16.
As a process- or degradation-related impurity, Iopamidol Impurity 16 (CAS 77697-86-0, C4H11NO2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C4H11NO2, Iopamidol Impurity 16 contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 105.14 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.
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.
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 | C4H11NO2 |
| Molecular Weight | 105.14 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1979 |
| Nitrogen Atoms | 1 |
Related Iopamidol Standards
- Iopamidol Impurity 17 (CAS 1794-90-7)
- Iopamidol Impurity 18 (CAS 130930-29-9)
- Iopamidol Impurity 54 (CAS CATO-C4X-145054)
- Iopamidol Impurity 21 (CAS CATO-C4X-145021)
- Iopamidol Impurity 23 (CAS CATO-C4X-145023)
- Iopamidol Impurity 24 (CAS CATO-C4X-145024)
- Iopamidol Impurity 57 (CAS CATO-C4X-145057)
- Iopamidol Impurity 25 (CAS CATO-C4X-145025)
Recommended Standards
- Tirofiban Impurity 111 (CAS 100-43-6)
- Betahistine EP Impurity A (CAS 100-69-6)
- Aminoacetaldehyde Dimethyl Acetal (CAS 22483-09-6)
- Diethanolamine (CAS 111-42-2)
- Boceprevir Impurity 7 (CAS CATO-C4X-25257)
- Peramivir impurity 149 (CAS CATO-C4X-1833149)
- Metaraminol impound 105 (CAS CATO-C4X-2252105)
- N'-((3-(4-Fluorophenyl)-1-phenyl-1H-pyrazol-4-yl)methylene)benzohydrazide (CAS 302938-53-0)
- cis-3-(Trifluoromethoxy)cyclobutanamine (CAS 2489409-60-9)
- N-(6-Amino-1-(cyclopropylmethyl)-3-methyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)pentanamide (CAS 143148-55-4)
- 6-amino-2-chlorobenzoic acid ethyl ester (CAS 172217-11-7)
- 6-Bromo-2-ethylquinazolin-4(1H)-one (CAS 88624-84-4)
- tricyclo[8.2.1.0³⁸]trideca-3(8),4,6-trien-13-amine (CAS 1379292-68-8)
- Palmitoyl Tripeptide-1 TFA salt (CAS 2803375-47-3)
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