Tetracaine Impurity 25 CAS 512175-79-0
| CAS No. | 512175-79-0 |
| Molecular Formula | C13H19NO2 |
| Molecular Weight | 221.30 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Tetracaine Impurity 25 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
CATO supplies Tetracaine Impurity 25 (CAS 512175-79-0), a pharmacopoeial impurity reference standard (molecular formula C13H19NO2, MW 221.30 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Tetracaine Impurity 25 (C13H19NO2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 221.30 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C13H19NO2 |
| Molecular Weight | 221.30 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 1 |
Related Tetracaine Standards
- Tetracaine Impurity 17 (CAS 1056627-94-1)
- Tetracaine Impurity 5 (CAS 94-32-6)
- Tetracaine Impurity 41 (CAS CATO-C4X-192341)
- Tetracaine impurity 20 (CAS 1152620-27-3)
- Tetracaine Impurity 22 (CAS 794457-79-7)
- Tetracaine Impurity 7 (CAS 10012-47-2)
- Tetracaine EP Impurity C (CAS 71839-12-8)
- Tetracaine Impurity 32 (CAS CATO-C4X-192332)
Recommended Standards
- Bupivacaine Impurity 32 (CAS 2199805-25-7)
- Pimavanserin Impurity 35 (CAS 1791227-69-4)
- Salbutamol Impurity 84 (CAS CATO-C4X-117684)
- Olodaterol Impurity 25 (CAS 926319-54-2)
- Carbocisteine impurity 53 (CAS CATO-C4X-201053)
- Esomeprazole H215 Impurity Sodium Salt (CAS 1803449-15-1)
- Lifitegrast Impurity 99 (CAS CATO-C4X-240999)
- tert-Butyl 2-amino-7-azabicyclo[2.2.1]heptane-7-carboxylate (CAS 1221818-01-4)
- Ethyl 1-Benzylpyrrolidine-3-carboxylate (CAS 5747-92-2)
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- 2-Bromo-5-cyanobenzamide (CAS 1261670-21-6)
- 6-Bromo-3-(3-ethoxypropyl)-2-sulfanyl-3,4-dihydroquinazolin-4-one (CAS 795290-91-4)
- Glucagon receptor antagonists-2 (CAS 202917-18-8)
Why CATO?
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