Olmesartan Impurity 30 CAS 157356-73-5
| CAS No. | 157356-73-5 |
| Molecular Formula | C12H18N2O2 |
| Molecular Weight | 222.28 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Olmesartan Impurity 30 (C12H18N2O2) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO supplies Olmesartan Impurity 30 (CAS 157356-73-5), a pharmacopoeial impurity reference standard (molecular formula C12H18N2O2, MW 222.28 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.
CATO manufactures Olmesartan Impurity 30 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 | C12H18N2O2 |
| Molecular Weight | 222.28 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2001 |
| Nitrogen Atoms | 2 |
Related Olmesartan Standards
- Olmesartan impurity 104 (CAS 2163824-95-9)
- Olmesartan Impurity 38 (CAS 144690-07-3)
- Olmesartan Impurity 23 (CAS CATO-C4X-109723)
- Olmesartan Impurity 97 (CAS 2190488-06-1)
- Olmesartan Impurity 48 (CAS 144690-04-0)
- Olmesartan Impurity 39 (CAS 2411637-68-6)
- Olmesartan Impurity 18 (CAS 144689-93-0)
- Olmesartan Impurity 93 (CAS CATO-C4X-109793)
Recommended Standards
- Ibuprofen Impurity 27 (CAS 53949-54-5)
- Olaparib Impurity 39 (CAS 458535-34-7)
- Ibuprofen EP Impurity M (CAS 60057-62-7)
- Melitracen Impurity 3 (CAS 5447-86-9)
- Lacosamide Impurity 14 (CAS 1219042-50-8)
- Palbociclib Impurity 194 (CAS CATO-C4X-1125194)
- Palbociclib Impurity 32 (CAS 1082876-26-3)
- 2-Chloro-N-(5-cyano-2-((2,6-dichlorophenyl)thio)phenyl)benzamide (CAS 400076-19-9)
- Methyl ((2,4,6-triisopropylphenyl)sulfonyl)-L-serinate (CAS 159155-12-1)
- 2,3-Dibromo-4-fluorophenylacetonitrile (CAS 1804419-07-5)
- 1-[(3,4-Difluorophenyl)methyl]-3-nitro-1h-pyrazole (CAS 1240564-83-3)
- Indolizino[2,3-f]quinoxaline (CAS 959619-25-1)
- 1,4,4-Trifluorocyclohexane-1-carboxylic acid (CAS 1645565-22-5)
- D-Leu14-Tirzepatide (CAS CATO-CPTD788920)
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