Dyclonine Impurity 29 CAS 55168-27-9
| CAS No. | 55168-27-9 |
| Molecular Formula | C12H16O2 |
| Molecular Weight | 192.25 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Dyclonine Impurity 29 (C12H16O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. 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 192.25 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies Dyclonine Impurity 29 (CAS 55168-27-9), a pharmacopoeial impurity reference standard (molecular formula C12H16O2, MW 192.25 g/mol) used for the identification and quantification of trace impurities in APIs.
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 | C12H16O2 |
| Molecular Weight | 192.25 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
Related Dyclonine Standards
- Dyclonine Impurity 31 (CAS 1042521-37-8)
- Dyclonine Impurity 32 (CAS 35922-84-0)
- Dyclonine Impurity N6 (CAS 50743-14-1)
- Dyclonine Impurity N8 (CAS 61405-66-1)
- Dyclonine Impurity 12 (CAS 91763-92-7)
- Dyclonine Impurity 20 (CAS 35999-21-4)
- Dyclonine Impurity 21 (CAS 7182-38-9)
- Dyclonine Impurity 19 (CAS CATO-C4X-188119)
Recommended Standards
- Butylphthalide Impurity 80 (CAS CATO-C4X-181380)
- Butylphthalide Impurity 46 (CAS 26311-42-2)
- Betaxolol EP Impurity D (CAS 63659-16-5)
- Olodaterol Impurity 1 (CAS 78-09-1)
- Deferasirox EP Impurity F (CAS 619-67-0)
- Atrasentan Impurity 129 (CAS 1063835-99-3)
- Picosulfate Impurity 13 (CAS CATO-C4X-123713)
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