Omeprazole Impurity 37 CAS 73590-60-0
| CAS No. | 73590-60-0 |
| Molecular Formula | C16H17N3O2S |
| Molecular Weight | 315.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Omeprazole Impurity 37 (C16H17N3O2S) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies Omeprazole Impurity 37 (CAS 73590-60-0), a pharmacopoeial impurity reference standard (molecular formula C16H17N3O2S, MW 315.39 g/mol) used for the identification and quantification of trace impurities in APIs.
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), Omeprazole Impurity 37 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 | C16H17N3O2S |
| Molecular Weight | 315.39 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Omeprazole Standards
- Omeprazole EP Impurity B (CAS 110374-16-8)
- Omeprazole Impurity 43 (CAS 151602-50-5)
- Omeprazole Impurity 7 (CAS 103877-02-7)
- Omeprazole Impurity 46 (CAS CATO-C4X-125546)
- Omeprazole Impurity 47 (CAS CATO-C4X-125547)
- Omeprazole EP Impurity G (CAS 125656-83-9)
- Omeprazole EP Impurity F (CAS 125656-82-8)
- Omeprazole Impurity 12 (CAS CATO-C4X-125512)
Recommended Standards
- Esomeprazole Impurity 58 (CAS CATO-C4X-111258)
- Ticagrelor impurity 99 (CAS CATO-C4X-109399)
- Esomeprazole Impurity 70 (CAS 103876-98-8)
- Apremilast impurity 64 (CAS CATO-C4X-100964)
- Letrozole Impurity 14 (CAS 2451658-74-3)
- Lefamulinum Impurity 22 (CAS CATO-C4X-304722)
- Nalmefene Impurity 24 (CAS CATO-C4X-126824)
- 3-Methoxy-2-aza-spiro[4.5]dec-2-ene (CAS 1215020-44-2)
- N-Isopropyl-6-(pentyloxy)naphthalene-2-sulfonamide (CAS 1206149-75-8)
- 1-(3-chlorobenzoyl)piperidine-3-sulfonyl chloride (CAS 1461705-29-2)
- 2-(4-Methoxyphenyl)-2-phenylethan-1-aminehydrochloride (CAS 21998-49-2)
- Cefixime Impurity 71 (CAS CATO-C4X-113971)
- Sphingolactone-24 (CAS 881177-99-7)
- Peptide Impurity 26 (CAS 1350456-66-4)
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