Atropine Impurity 55 CAS CATO-C4X-148955
| CAS No. | CATO-C4X-148955 |
| Molecular Formula | C19H23ClN2O |
| Molecular Weight | 330.85 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Atropine Impurity 55 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.
CATO supplies Atropine Impurity 55 (CAS CATO-C4X-148955), a pharmacopoeial impurity reference standard (molecular formula C19H23ClN2O, MW 330.85 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, chlorine substitution, Atropine Impurity 55 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 330.85 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C19H23ClN2O |
| Molecular Weight | 330.85 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Atropine Standards
- Atropine Impurity 31 (CAS CATO-C4X-148931)
- Atropine Impurity 45 (CAS 2515-36-8)
- Atropine EP Impurity E(7-Hydroxyhyoscyamine) (CAS 949092-65-3)
- Atropine EP Impurity D(6-hydroxyhyoscyamine) (CAS CATO-C4X-148914)
- Atropine Impurity 32 (CAS 4438-22-6)
- Atropine Sulfate EP Impurity D (CAS CATO-C4X-148939)
- Atropine N-Oxide (CAS CATO-C4X-148941)
- Atropine Impurity 49 (CAS CATO-C4X-148949)
Recommended Standards
- Levocetirizine Impurity 55 (CAS 705289-61-8)
- Cetirizine Impurity 26 (CAS CATO-C4X-158226)
- Cetirizine EP Impurity G (CAS 109806-71-5)
- Bepotastine Impurity 13 (CAS CATO-C4X-183913)
- Clindamycin Palmitate Impurity 71 (CAS CATO-C4X-134171)
- Cefovecin Impurity 6 (CAS CATO-C4X-30356)
- Bupivacaine Impurity 42 (CAS CATO-C4X-148242)
- Dolutegravir Impurity 34 (CAS 2227442-13-7)
- 1-((6-Oxo-1,6-dihydropyridin-3-yl)amino)cyclobutanecarbonitrile (CAS 2110429-26-8)
- 4-Bromo-N-ethyl-6-methyl-7-oxo-1h-pyrrolo[2,3-c]pyridine-2-carboxamide (CAS 1628864-79-8)
- 2-(((4-(Benzyloxy)phenyl)amino)methyl)-6-methoxyphenol (CAS 1232777-76-2)
- 1'-Methyl-6',7',8',9'-tetrahydrospiro[cyclohexane-1,5'-thiazolo[3,2-a]quinazoline] hydrobromide (CAS 21457-11-4)
- 4774-14-5 2,6-Dichloropyrazine Pyrazine, 2,6-dichloro- AI3-61780 EINECS 225-316-8 (CAS 4774-14-5)
- Tirzepatide Impurity 16 (CAS CATO-C4X-324016)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com