Etamsylate Impurity 1 CAS CATO-C4X-28541
| CAS No. | CATO-C4X-28541 |
| Molecular Formula | C18H23NO6S |
| Molecular Weight | 381.44 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Etamsylate Impurity 1 (CAS CATO-C4X-28541), a pharmacopoeial impurity reference standard (molecular formula C18H23NO6S, MW 381.44 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Etamsylate Impurity 1 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 381.44 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures Etamsylate Impurity 1 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 | C18H23NO6S |
| Molecular Weight | 381.44 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Etamsylate Standards
Recommended Standards
- Benperidol EP Impurity D (CAS 2062-84-2)
- 8-(Ethylsulfonyl)-3-(2-phenoxyethyl)-1,3,8-triazaspiro[4.5]decane-2,4-dione (CAS 1040664-67-2)
- Topiramate Impurity 22 (CAS CATO-C4X-176822)
- (1S,2S)-2-(Diphenylphosphino)-1,2-diphenylethanamine (CAS 1091606-67-5)
- Atrasentan Impurity 162 (CAS 1063836-10-1)
- Tofacitinib Impurity 37 (CAS 1252883-90-1)
- Axitinib Impurity 39 (CAS 31913-93-6)
- Ethyl 5-chloro-2-cyanobenzoate (CAS 127510-90-1)
- 4,5-Dimethyl-1,2,3,6-tetrahydropyridine (CAS 54152-48-6)
- 3-(3-Chlorophenyl)-1-(2-thienyl)-2-propen-1-one (CAS 18003-31-1)
- Triamcinolone Acetonide EP Impurity A (CAS 124-94-7)
- 7H-Pyrrolo[2,3-d]pyrimidin-4-ol (CAS 1194710-85-4)
- Boc-S-3-amino-4-(4-methoxyphenyl)-butyric acid (CAS 126800-59-7)
- Xenopsin-Related Peptide 2 (XP-2) (H-9340.0005) (CAS 117442-29-2)
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