Melatonin impurity 11 CAS CATO-C4X-229211
| CAS No. | CATO-C4X-229211 |
| Molecular Formula | C13H16N2O4 |
| Molecular Weight | 264.28 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 Melatonin impurity 11.
Melatonin impurity 11 (CAS CATO-C4X-229211) is a certified pharmaceutical impurity reference standard with the molecular formula C13H16N2O4 and a molecular weight of 264.28 g/mol.
Melatonin impurity 11 (C13H16N2O4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C13H16N2O4 |
| Molecular Weight | 264.28 g/mol |
| Appearance | Off-white to pale 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Melatonin Standards
- Melatonin impurity 18 (CAS 515128-09-3)
- Melatonin Impurity 5 (CAS 52450-38-1)
- Melatonin 2-Chloro impurity (CAS 118747-02-7)
- Melatonin 6-Chloro Impurity (CAS 63762-74-3)
- Melatonin impurity 15 (CAS 2998440-04-1)
- Melatonin impurity 7 (CAS 278783-22-5)
- Melatonin EP Impurity D (CAS 28026-16-6)
- Melatonin impurity 13 (CAS 188396-98-7)
Recommended Standards
- Roxadustat Impurity 157 (CAS CATO-C4X-2213157)
- Hydantoin Impurity 31 (CAS 110932-42-8)
- Lacosamide Impurity 17 (CAS CATO-C4X-183017)
- Perampanel Impurity 23 (CAS CATO-C4X-243023)
- Prasugrel Impurity 30 (CAS 1443034-67-0)
- Sertraline Impurity 29 (CAS 36159-73-6)
- Cefepime Impurity 29 (CAS 110-56-5)
- 5-chloro-3-(methoxymethyl)-1,2,4-thiadiazole (CAS 173053-02-6)
- N-(4-Amino-2-methoxyphenyl)-2-methylpropanamide (CAS 532417-07-5)
- (S)-2-Phenethylpiperazine dihydrochloride (CAS 2055848-89-8)
- Perfluorophenyl 4-bromobenzenesulfonate (CAS 848649-38-7)
- 2-(4-(Chloromethyl)phenyl)benzo[d]oxazole (CAS 57864-19-4)
- {4-[amino(phenyl)methyl]oxan-4-yl}methanol (CAS 1909305-33-4)
- Des-Gln19-Tirzepatide (CAS CATO-CPTD788954)
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