Atropine Impurity 23 CAS 22226-37-5
| CAS No. | 22226-37-5 |
| Molecular Formula | C17H21NO3 |
| Molecular Weight | 287.35 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Atropine Impurity 23 (CAS 22226-37-5), a pharmacopoeial impurity reference standard (molecular formula C17H21NO3, MW 287.35 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, Atropine Impurity 23 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 287.35 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 manufactures Atropine Impurity 23 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 | C17H21NO3 |
| Molecular Weight | 287.35 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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 |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 1 |
Related Atropine Standards
- Atropine Impurity 44 (CAS 109496-01-7)
- Atropine Impurity 54 (CAS CATO-C4X-148954)
- Atropine EP Impurity G ((R)-Isomer) ((R)-(-)-Littorine) (CAS 21956-47-8)
- Atropine Impurity 37 (CAS 35721-90-5)
- Atropine Impurity 42 (CAS 13269-35-7)
- Atropine Impurity 60 (CAS 5627-14-5)
- Atropine sulfate EP Impurity G (CAS CATO-C4X-14897)
- Atropine (CAS 51-55-8)
Recommended Standards
- Phenylephrine Impurity 104 (CAS CATO-C4X-1467104)
- Galantamine EP Impurity F (ent-Galantamine) (CAS 60384-53-4)
- Galantamine EP Impurity B (CAS 1668-85-5)
- Propranolol Impurity 23 (CAS 77252-87-0)
- Peramivir impurity 143 (CAS CATO-C4X-1833143)
- Somatostatin Impurity 5 X TFA Salt (CAS CATO-C4X-23505)
- Minocycline Impurity 58 (CAS CATO-C4X-169958)
- (2S,4S)-2-Amino-4-((tetrahydro-2H-pyran-4-yl)methyl)pentanedioic acid (CAS 1217649-24-5)
- 7-(2-Ethylpiperidin-1-yl)-[1,2,4]triazolo[4,3-a]pyrimidin-3(2H)-one (CAS 1325307-48-9)
- 2-Methyl-2H,4H,6H,7H-thiopyrano[4,3-c]pyrazole-3-carbaldehyde (CAS 1557482-13-9)
- N-((2,5-Dichloro-4-((1,1,2,2-tetrafluoroethyl)thio)phenyl)carbamoyl)-2,6-difluorobenzamide (CAS 100279-18-3)
- N-Formyl-Met-Leu-Phe-o-fluorobenzylamide (CAS 112898-02-9)
- 3-(Hydroxymethyl)-4-propoxybenzaldehyde (CAS 915921-81-2)
- Semaglutide impurity 206 (CAS CATO-C4X-2226206)
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