Rabeprazole Impurity 38 CAS CATO-C4X-112138
| CAS No. | CATO-C4X-112138 |
| Molecular Formula | C10H14ClNO2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Rabeprazole Impurity 38 (CAS CATO-C4X-112138) is a certified pharmaceutical impurity reference standard with the molecular formula C10H14ClNO2HCl and a molecular weight of 252.13 g/mol.
Owing to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, Rabeprazole Impurity 38 is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 252.13 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
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 | C10H14ClNO2 HCl |
| Molecular Weight | 252.13 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Rabeprazole Standards
- Rabeprazole EP Impurity E (CAS 102804-77-3)
- Rabeprazole EP Impurity G (CAS 102804-82-0)
- Rabeprazole Impurity 9 (CAS 1114543-47-3)
- Rabeprazole 4-Chloro Analog Sulfone (CAS 1159977-27-1)
- Rabeprazole Impurity N1 (CAS 1163685-30-0)
- Rabeprazole Impurity 29 (CAS 1163685-31-1)
- Rabeprazole EP Impurity A (CAS 117976-47-3)
- Rabeprazole (CAS 117976-89-3)
Recommended Standards
- Betamethasone impurity 101 (CAS CATO-C4X-1437101)
- Lenalidomide Impurity 66 (CAS CATO-C4X-190366)
- Halobetasol Impurity 10 (CAS CATO-C4X-331410)
- 3-(2-(1h-Pyrazol-1-yl)acetamido)tetrahydrothiophene-3-carboxylic acid (CAS 1282298-82-1)
- 2-[4-(1-aminoethyl)-2-methoxyphenoxy]acetic acid hydrochloride (CAS 1170395-91-1)
- 1-(1-Cyclopentyl-3-methyl-1H-pyrazol-4-yl)-N-((1,3-dimethyl-1H-pyrazol-4-yl)methyl)methanamine hydrochloride (CAS 1856083-27-6)
- (S)-1-Phenyl-1,2,3,4-tetrahydroisoquinoline-d5 (CAS 1217607-42-5)
- 1-Azaspiro[4.4]nonane (CAS 176-03-4)
- 1-(3,4-Dichlorophenyl)-N-((2-methylthiazol-4-yl)methyl)ethan-1-amine (CAS 879176-17-7)
- Custom peptides (CAS CATO-CPTD788509)
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