Esomeprazole Impurity 100 CAS 142885-96-9
| CAS No. | 142885-96-9 |
| Molecular Formula | C8H9Cl2N |
| Molecular Weight | 190.07 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Esomeprazole Impurity 100 (CAS 142885-96-9), a pharmacopoeial impurity reference standard (molecular formula C8H9Cl2N, MW 190.07 g/mol) used for the identification and quantification of trace impurities in APIs.
Esomeprazole Impurity 100 (C8H9Cl2N) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C8H9Cl2N |
| Molecular Weight | 190.07 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Esomeprazole Standards
- Esomeprazole impurity 03 (CAS 91168-31-9)
- Esomeprazole Impurity 42 (CAS CATO-C4X-111242)
- Esomeprazole Impurity 101 (CAS 84006-10-0)
- Esomeprazole Impurity 41 (CAS 1424857-95-3)
- Esomeprazole Impurity 86 (CAS 287118-45-0)
- Esomeprazole Impurity 109 (CAS 86604-79-7)
- Esomeprazole Impurity 48 (CAS CATO-C4X-111248)
- Esomeprazole Impurity 84 (CAS 149082-03-1)
Recommended Standards
- Pazopanib Impurity 31 (CAS 35113-90-7)
- Omeprazole Impurity 24 (CAS 109371-17-7)
- N-Methyl-3,4-dichlorobenzylamine (CAS 5635-67-6)
- Omeprazole Impurity 36 (CAS CATO-C4X-125536)
- Osimertinib Impurity 108 (CAS CATO-C4X-2045108)
- Apalutamide Impurity 116 (CAS CATO-C4X-2749116)
- Nintedanib Impurity 74 (CAS CATO-C4X-181474)
- (2-((2-Methoxyethoxy)methyl)phenyl)methanamine (CAS 1016512-39-2)
- 1-Acetyl-2'-amino-6'-(hydroxymethyl)-2,8'-dioxo-1,2-dihydro-8'H-spiro[indole-3,4'-pyrano[3,2-b]pyran]-3'-carbonitrile (CAS 939893-52-4)
- Brexpiprazole Impurity 48 (CAS 2059942-13-9)
- Dimethyl 5,12-dihydrocycloocta[1,2-b:5,6-b']diindole-6,13-dicarboxylate (CAS 26612-48-6)
- 2,5-Dichloro-N-{1-[(3-methoxyphenyl)methyl]-5,6-dimethyl-1H-1,3-benzodiazol-4-yl}benzene-1-sulfonamide (CAS 338955-33-2)
- N-(4,6-dimethylpyrimidin-2-yl)-1H-benzo[d]imidazol-2-amine (CAS 19206-90-7)
- Semaglutide impurity 64 (CAS CATO-C4X-222664)
Why CATO?
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