Tegoprazan impurity 33 CAS CATO-C4X-229733
| CAS No. | CATO-C4X-229733 |
| Molecular Formula | C20H21N3O3 |
| Molecular Weight | 351.40 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 Tegoprazan impurity 33.
Tegoprazan impurity 33 (CAS CATO-C4X-229733) is a certified pharmaceutical impurity reference standard with the molecular formula C20H21N3O3 and a molecular weight of 351.40 g/mol.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, Tegoprazan impurity 33 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 351.40 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 | C20H21N3O3 |
| Molecular Weight | 351.40 g/mol |
| Appearance | Pale yellow to 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
Related Tegoprazan Standards
- Tegoprazan Impurity 143 (CAS CATO-C4X-2297143)
- Tegoprazan Impurity 82 (CAS CATO-C4X-229782)
- Tegoprazan impurity 44 (CAS 1640981-11-8)
- Tegoprazan Impurity 147 (CAS CATO-C4X-2297147)
- Tegoprazan Impurity 62 (CAS CATO-C4X-229762)
- Tegoprazan Impurity 125 (CAS CATO-C4X-2297125)
- Tegoprazan Impurity 133 (CAS CATO-C4X-2297133)
- Tegoprazan Impurity 106 (CAS CATO-C4X-2297106)
Recommended Standards
- Lacosamide Impurity 5 (CAS CATO-C4X-18305)
- Tenoxicam EP Impurity F (CAS CATO-C4X-23834)
- Lacosamide EP Impurity H (CAS CATO-C4X-183037)
- Ozenoxacin Impurity 47 (CAS CATO-C4X-279647)
- Osimertinib Impurity 90 (CAS CATO-C4X-204590)
- Tetrabenazine Impurity 34 (CAS CATO-C4X-274834)
- Clindamycin Impurity 63 (CAS CATO-C4X-134163)
- 2-Bromo-5-nitrophenol (CAS 52427-05-1)
- 3-(2-Cyclopentylethyl)-4-methyl-1h-pyrazol-5-amine (CAS 1187348-87-3)
- 1-Fluoro-2-isobutoxy-3-nitrobenzene (CAS 1233955-17-3)
- 11-Oxa-1,8-diazatricyclo[7.5.0.0,2,7]tetradeca-2,4,6,8-tetraen-13-ol (CAS 68857-67-0)
- 4-amino-3-(4-chlorophenyl)butanoic acid hydrochloride (CAS 28311-31-1)
- 2-CHloro-n-(4-fluoro-thiobenzoyl)-acetamide (CAS 1311279-68-1)
- 302798-54-5 (Leu31,Pro34)-Neuropeptide Y (13-36) (human, rat) MFCD00672463 (CAS 302798-54-5)
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