Orphenadrine USP Related Compound B CAS 93940-17-1
| CAS No. | 93940-17-1 |
| Molecular Formula | C20H28NO |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C20H28NOCl, Orphenadrine USP Related Compound B contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 333.90 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Orphenadrine USP Related Compound B (CAS 93940-17-1) is a certified pharmaceutical impurity reference standard with the molecular formula C20H28NOCl and a molecular weight of 333.90 g/mol.
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), Orphenadrine USP Related Compound B 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 | C20H28NO Cl |
| Molecular Weight | 333.90 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Orphenadrine Standards
- Orphenadrine USP Related Compound C (CAS 10488-36-5)
- Orphenadrine D3 Citrate (CAS 1185011-75-9)
- Orphenadrine-d (CAS 1309283-23-5)
- Orphenadrine EP Impurity C (CAS 17349-96-1)
- Orphenadrine EP Impurity E HCl (Orphenadrine USP Related Compound E HCl) (CAS 17630-53-4)
- Orphenadrine EP Impurity E (CAS 21945-86-8)
- Orphenadrine N-Oxide (CAS 29215-00-7)
- Orphenadrine Hydrochloride (CAS 341-69-5)
Recommended Standards
- Acotiamide Impurity 1 (CAS CATO-C4X-11141)
- Eldecalcitol Impurity 44 (CAS CATO-C4X-214044)
- Faropenem Impurity 52 (CAS CATO-C4X-128952)
- Tert-butyl piperidine-2-carboxylate hydrochloride (CAS 1214145-66-0)
- 3-Cyclopropyl-2-thioxo-1,3-diazaspiro[4.5]Decan-4-one (CAS 832741-02-3)
- 3-Cyclopropyl-1-(pyrimidin-2-yl)-1h-pyrazol-5-amine (CAS 187795-41-1)
- 4-(4-Bromophenyl)-1-(m-tolyl)-1,3-dihydro-2H-imidazol-2-one (CAS 688057-71-8)
- Nitrogen-<SUP>14</SUP>N<SUB>2</SUB> (CAS 1173020-41-1)
- 5-(Carboxymethoxy)-2-methylbenzofuran-3-carboxylic acid (CAS 82039-80-3)
- Semaglutide impurity 215 (CAS CATO-C4X-2226215)
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