Ilaprazole Impurity 5 CAS 2285346-44-1
| CAS No. | 2285346-44-1 |
| Molecular Formula | C19H18N4O3S |
| Molecular Weight | 382.44 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Ilaprazole Impurity 5 (CAS 2285346-44-1) is a certified pharmaceutical impurity reference standard with the molecular formula C19H18N4O3S and a molecular weight of 382.44 g/mol.
Ilaprazole Impurity 5 (C19H18N4O3S) contains a steroid core, an amide group, a sulfone 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C19H18N4O3S |
| Molecular Weight | 382.44 g/mol |
| Purity | >90% |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Ilaprazole Standards
- Ilaprazole Impurity 1 (CAS 172152-37-3)
- Ilaprazole Impurity 164 (CAS CATO-C4X-1130164)
- Ilaprazole Impurity 57 Iodized Salt (CAS 1508282-92-5)
- Ilaprazole Impurity 91 (CAS CATO-C4X-113091)
- Ilaprazole Impurity 221 (CAS CATO-C4X-1130221)
- Ilaprazole Impurity 109 (CAS CATO-C4X-1130109)
- Ilaprazole Impurity 235 (CAS CATO-C4X-1130235)
- Ilaprazole Impurity 45 (CAS CATO-C4X-113045)
Recommended Standards
- N-(4-Acetamidophenyl)-2-((4-amino-5-phenyl-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 585554-02-5)
- 2-(4-Methoxy-3-(tosyloxy)benzylthio)acetic acid (CAS 1005494-36-9)
- N-(4-(Thiazolo[5,4-b]pyridin-2-yl)phenyl)quinoline-2-carboxamide (CAS 863588-75-4)
- 2-Hydroxy-5-((4-(thiophen-2-ylmethyl)piperazin-1-yl)sulfonyl)benzoic acid (CAS 1054082-96-0)
- Pyridoxine impurity 83 (CAS CATO-C4X-187783)
- Ozenoxacin Impurity 5 (CAS CATO-C4X-27965)
- Perindopril EP Impurity D (CAS 130061-28-8)
- tert-Butyl 2-amino-4-oxo-3,5,7,8-tetrahydropyrido[4,3-d]pyrimidine-6(4H)-carboxylate (CAS 1000386-01-5)
- Methyl 4-chloro-5-iodo-2-methylbenzoate (CAS 1399182-04-7)
- 3-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(2,2,2-trifluoroethyl)-1H-pyrazole (CAS 1664354-95-3)
- Succinyl coenzyme A sodium salt (CAS 108347-97-3)
- 4-Amino-N-cyclohexyl-1-methyl-1H-pyrazole-5-carboxamide (CAS 1537487-13-0)
- 4-Chloro-N-(1,1-dioxidotetrahydrothiophen-3-yl)benzenesulfonamide (CAS 307514-10-9)
- (Asn5)-Delta-Sleep Inducing Peptide (H-2555.0005) (CAS 80064-67-1)
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