Dorzolamide Impurity 18 CAS 147086-81-5
| CAS No. | 147086-81-5 |
| Molecular Formula | C8H10O3S2 |
| Molecular Weight | 218.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Dorzolamide Impurity 18 (CAS 147086-81-5) is a high-purity analytical reference standard with the molecular formula C8H10O3S2 and a molecular weight of 218.29 g/mol.
Dorzolamide Impurity 18 (C8H10O3S2) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. 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).
As a certified reference material (CRM), Dorzolamide Impurity 18 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.
Physical & Chemical Properties
| Molecular Formula | C8H10O3S2 |
| Molecular Weight | 218.29 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
| Sulfur Atoms | 2 |
Related Dorzolamide Standards
- Dorzolamide Impurity 2 (CAS 147128-77-6)
- Dorzolamide Impurity 42 (CAS 133359-79-2)
- Dorzolamide Impurity 6 (CAS CATO-C4X-12286)
- Dorzolamide Impurity 7 (CAS CATO-C4X-12287)
- Dorzolamide Impurity 12 (CAS 403848-01-1)
- Dorzolamide Impurity 20 (CAS 147086-83-7)
- Dorzolamide Impurity 10 (CAS CATO-C4X-122810)
- Dorzolamide Impurity 8 (CAS 148810-83-7)
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