Remdesivir Impurity 1 CAS 1770840-43-1
| CAS No. | 1770840-43-1 |
| Molecular Formula | C6H5IN4 |
| Molecular Weight | 260.04 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C6H5IN4, Remdesivir Impurity 1 contains a nitrile group, iodine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 260.04 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Remdesivir Impurity 1 (CAS 1770840-43-1) is a certified pharmaceutical impurity reference standard with the molecular formula C6H5IN4 and a molecular weight of 260.04 g/mol.
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 | C6H5IN4 |
| Molecular Weight | 260.04 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 4 |
Related Remdesivir Standards
- Remdesivir Impurity 44 (CAS 1187550-21-5)
- Remdesivir Impurity 39 (CAS 58479-61-1)
- Remdesivir Impurity 17 (CAS CATO-C4X-210017)
- Remdesivir Impurity 19 (CAS 1355049-95-4)
- Remdesivir Impurity 5 (CAS 1191237-69-0)
- Remdesivir Impurity 39 (CAS 793-12-4)
- Remdesivir Impurity 16 (CAS CATO-C4X-210016)
- Remdesivir Impurity 12 (CAS 937046-98-5)
Recommended Standards
- Lenalidomide Impurity 44 (CAS 632340-56-8)
- (3-Methoxy-6-(4-methoxyphenyl)pyridazin-4-yl)boronic acid (CAS 1015481-16-9)
- Formoterol Impurity 96 (CAS 5029-61-8)
- 2,4-Dichloro-6-(3-fluorophenoxy)-1,3,5-triazine (CAS 112748-45-5)
- Imipenem Impurity 121 (CAS CATO-C4X-1662121)
- Perindopril Impurity 90 (CAS CATO-C4X-125290)
- Celecoxib Impurity 60 (CAS CATO-C4X-104360)
- 3-(4-Iodo-3,5-dimethyl-1H-pyrazol-1-yl)tetrahydrothiophene 1,1-dioxide (CAS 1536708-25-4)
- 7-Chloro-5-(2-fluorophenyl)-2H-benzo[e][1,4]diazepin-2-one (CAS 1086396-84-0)
- 1-Allyl-2-((2-bromobenzyl)oxy)benzene (CAS 1309933-83-2)
- 3-(1,1-Dioxidothiomorpholino)propanoic acid (CAS 849928-19-4)
- (1-Phenyl-4-piperidyl)methanol (CAS 697306-45-9)
- 6-(Methylthio)-1-hexanamine (CAS 62580-22-7)
- Semaglutide Impurity 177 (CAS CATO-C4X-2226177)
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