Brinzolamide Impurity 19 CAS 154127-19-2
| CAS No. | 154127-19-2 |
| Molecular Formula | C12H21N3O5S3 |
| Molecular Weight | 383.51 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Brinzolamide Impurity 19 (CAS 154127-19-2), a pharmacopoeial impurity reference standard (molecular formula C12H21N3O5S3, MW 383.51 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Brinzolamide Impurity 19 (C12H21N3O5S3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 383.51 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
As a certified reference material (CRM), Brinzolamide Impurity 19 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 | C12H21N3O5S3 |
| Molecular Weight | 383.51 g/mol |
| Purity | >95% |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2001 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 3 |
Related Brinzolamide Standards
- Brinzolamide Impurity 13 (CAS 138890-50-3)
- Brinzolamide (CAS 138890-62-7)
- Brinzolamide Impurity 2 (CAS CATO-C4X-19402)
- Brinzolamide D5 (CAS 1217651-02-9)
- Brinzolamide Impurity 21 (CAS CATO-C4X-194021)
- Brinzolamide Impurity 27 (CAS CATO-C4X-194027)
- Brinzolamide Impurity 22 (CAS CATO-C4X-194022)
- Brinzolamide Impurity 23 (CAS CATO-C4X-194023)
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- n-(3-Bromo-6-chloroimidazo[1,2-b]pyridazin-2-yl)acetamide (CAS 1823781-73-2)
- Benzoic acid, 2-fluoro-6-methoxy-3-nitro-, methyl ester (CAS 1956318-68-5)
- p-Hydroxyphenyl propanoate (CAS 3233-34-9)
- N-Methylacetamide-N-d1 (CAS 3669-70-3)
- tert-Butyl 5-oxo-4,7-diazaspiro[2.5]octane-7-carboxylate (CAS 1199794-51-8)
- Mast Cell Degranulating Peptide HR-1 (CAS 80533-94-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com