Sofosbuvir Impurity 113 CAS 26661-13-2
| CAS No. | 26661-13-2 |
| Molecular Formula | C11H9N3O2 |
| Molecular Weight | 215.21 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Sofosbuvir Impurity 113 (C11H9N3O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 215.21 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Sofosbuvir Impurity 113 (CAS 26661-13-2), a pharmacopoeial impurity reference standard (molecular formula C11H9N3O2, MW 215.21 g/mol) used for the identification and quantification of trace impurities in APIs.
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), Sofosbuvir Impurity 113 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 | C11H9N3O2 |
| Molecular Weight | 215.21 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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 |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
| Nitrogen Atoms | 3 |
Related Sofosbuvir Standards
- Sofosbuvir Impurity 102 (CAS CATO-C4X-1052102)
- Sofosbuvir Impurity 109 (CAS 10113-28-7)
- Sofosbuvir Impurity 123 (CAS 119804-96-5)
- Sofosbuvir Impurity 106 (CAS 119410-95-6)
- Sofosbuvir Impurity 54 (CAS 16731-31-0)
- Sofosbuvir Impurity 108 (CAS 4009-39-6)
- Sofosbuvir Impurity 114 (CAS 701-64-4)
- Sofosbuvir Impurity 110 (CAS 51496-03-8)
Recommended Standards
- Oxiracetam Impurity 5 (CAS 120428-80-0)
- Metronidazole Impurity 20 (CAS 19765-12-9)
- 198195-06-1 3-(Pyrimidin-2-ylamino)-benzoic acid 6670AD C11H9N3O2 (CAS 198195-06-1)
- Metronidazole EP Impurity F (CAS 16156-94-8)
- Cyclophosphamide impurity 28 (CAS CATO-C4X-230628)
- Tolterodine Impurity 29 (CAS 124937-85-5)
- Levonorgestrel EP Impurity N (CAS 4222-96-2)
- 23-O-Desmycinosyl-tylosin (CAS 79592-92-0)
- 3,5-dimethyl-N-(piperidin-4-yl)furan-2-carboxamide (CAS 1840265-40-8)
- Imidazole Hydroiodide (Low water content) (CAS 68007-08-9)
- LS-tetrasaccharide a sodium salt (CAS 64003-53-8)
- 2-{[3-(aminomethyl)thiolan-3-yl]oxy}ethan-1-ol (CAS 1698157-65-1)
- (S)-(-)-2-Amino-3,3-dimethyl-1,1-diphenyl-1-butanol (CAS 144054-70-6)
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Why CATO?
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