Resmetirom impurity 115 CAS CATO-C4X-2912115
| CAS No. | CATO-C4X-2912115 |
| Molecular Formula | C19H17Cl2N7O8 |
| Molecular Weight | 542.29 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 Resmetirom impurity 115.
Resmetirom impurity 115 (CAS CATO-C4X-2912115) is a certified pharmaceutical impurity reference standard with the molecular formula C19H17Cl2N7O8 and a molecular weight of 542.29 g/mol.
Structurally, Resmetirom impurity 115 (C19H17Cl2N7O8) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 542.29 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C19H17Cl2N7O8 |
| Molecular Weight | 542.29 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 7 |
Related Resmetirom Standards
- Resmetirom impurity 57 (CAS 2768217-11-2)
- Resmetirom Impurity 35 (CAS CATO-C4X-291235)
- Resmetirom Impurity 49 (CAS CATO-C4X-291249)
- Resmetirom impurity 60 (CAS 2403724-53-6)
- Resmetirom impurity 89 (CAS CATO-C4X-291289)
- Resmetirom Impurity 38 (CAS CATO-C4X-291238)
- Resmetirom impurity 113 (CAS CATO-C4X-2912113)
- Resmetirom impurity 85 (CAS CATO-C4X-291285)
Recommended Standards
- Ceritinib Impurity 27 (CAS CATO-C4X-104827)
- Gold, (3-methoxy-3-oxo-1-propyn-1-yl)(triphenylphosphine)- (CAS 91884-60-5)
- (T-4)-Dichloro[1,1′-(1,3-propanediyl)bis[1,1-diphenylphosphine-κP]]cobalt (CAS 18078-25-6)
- (4,5-Dihydro-2-methyl-3-furanyl)(triphenylphosphine)gold (CAS 1426438-00-7)
- Fluralaner Impurity 63 (CAS 3027861-23-7)
- Carbocisteine Impurity 32 (CAS CATO-C4X-201032)
- Ribociclib impurity 1 (CAS CATO-C4X-31001)
- 2-Bromo-N-(3-cyano-6-methyl-4,5,6,7-tetrahydro-1-benzothien-2-yl)butanamide (CAS 1284156-83-7)
- 2-((Benzyloxy)methyl)cyclopent-3-enol (CAS 959973-63-8)
- (R)-1-(Quinolin-5-yl)ethan-1-amine (CAS 1213060-85-5)
- 2-Methyl-2-((thiophen-2-ylmethyl)amino)propan-1-ol (CAS 156543-21-4)
- 4-((3-Aminopyrrolidin-1-yl)methyl)-2H-chromen-2-one (CAS 1708080-53-8)
- (2-Propylphenyl)methanol (CAS 17475-43-3)
- Semaglutide impurity 50 (CAS 2773558-66-8)
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