Dorzolamide Impurity 4 CAS 154802-22-9
| CAS No. | 154802-22-9 |
| Molecular Formula | C8H11NO5S3 |
| Molecular Weight | 297.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Dorzolamide Impurity 4 (C8H11NO5S3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Dorzolamide Impurity 4 (CAS 154802-22-9), a certified reference material (molecular formula C8H11NO5S3, MW 297.37 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Dorzolamide Impurity 4 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H11NO5S3 |
| Molecular Weight | 297.37 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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 | 1 |
| Sulfur Atoms | 3 |
Related Dorzolamide Standards
- Dorzolamide Impurity 8 (CAS 120279-26-7)
- Dorzolamide Impurity 11 (and enantiomer) (CAS CATO-C4X-122811)
- Dorzolamide EP Impurity D (CAS 154154-90-2)
- Dorzolamide (CAS 120279-96-1)
- Rac-Dorzolamide (CAS 120280-13-9)
- Dorzolamide (CAS 139066-77-6)
- Dorzolamide EP Impurity B（R,S-Isomer) (CAS 149249-72-9)
- Dorzolamide EP Impurity A (CAS 120279-95-0)
Recommended Standards
- Ethyl 5-(4-fluorophenyl)-2-(methylthio)thiazole-4-carboxylate (CAS 1422175-48-1)
- (S)-5-Methyl-5-phenyl-3-(phenylamino)-2-thioxoimidazolidin-4-one (CAS 161326-40-5)
- (2S,3S)-1-(2-MEthoxyethyl)-2-(3-methyl-2-thienyl)-6-oxopiperidine-3-carboxylic acid (CAS 1415811-66-3)
- N-(tert-butoxycarbonyl)-S-phenyl-L-cysteine (CAS 163705-28-0)
- 1,3-Bis(trifluoromethyl)-2-(difluoromethoxy)-4-iodobenzene (CAS 1806861-77-7)
- Imazosulfuron (CAS 122548-33-8)
- (3-Ethoxy-4-hydroxyphenyl)(morpholino)methanethione (CAS 309954-11-8)
- 4-N-phenylpyridine-3,4-diamine (CAS 35826-31-4)
- Gadobutrol Impurity 52 (CAS CATO-C4X-2120152)
- Brivaracetam Impurity 114 (CAS CATO-C4X-2007114)
- 7-Bromo-2,3-dimethylbenzo[b]thiophene (CAS 204980-74-5)
- 4-(2-Fluorobenzoyl)tetrahydro-2H-pyran-4-carbonitrile (CAS 1403564-37-3)
- 2-Amino-2-benzyl-3-hydroxypropanoic acid (CAS 51127-30-1)
- Peptide Fmoc-Thi-Thi-OH (CAS CATO-CPTD788552)
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