Orphenadrine EP Impurity E CAS 21945-86-8
| CAS No. | 21945-86-8 |
| Molecular Formula | C18H23NO |
| Molecular Weight | 269.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 269.38 g/mol gives Orphenadrine EP Impurity E distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Orphenadrine EP Impurity E (CAS 21945-86-8), a certified reference material (molecular formula C18H23NO, MW 269.38 g/mol) for analytical method development and quality control.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, Orphenadrine EP Impurity E is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 269.38 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Orphenadrine EP Impurity E 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 | C18H23NO |
| Molecular Weight | 269.38 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | 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 Orphenadrine Standards
- Orphenadrine (CAS 83-98-7)
- Orphenadrine Impurity 3 (CAS CATO-C4X-33173)
- Orphenadrine N-Oxide (CAS 29215-00-7)
- Orphenadrine EP Impurity C (CAS 17349-96-1)
- Orphenadrine Impurity 3 (CAS 41870-52-4)
- Orphenadrine EP Impurity A (CAS 5472-13-9)
- Orphenadrine USP Related Compound C (CAS 10488-36-5)
- Orphenadrine-d (CAS 1309283-23-5)
Recommended Standards
- tert-Butyl ((1-(piperidin-4-yl)azetidin-3-yl)methyl)carbamate (CAS 883547-23-7)
- N-undecanoyl-L-Homoserine lactone (CAS 216596-71-3)
- Tert-butyl ((4-(hydroxymethyl)bicyclo[2.2.2]Octan-1-yl)methyl)carbamate (CAS 916210-37-2)
- N,N-diethyl-4-(((pyridin-3-ylmethyl)amino)methyl)aniline (CAS 510723-51-0)
- Mo Standard Solution (CAS 7439-98-7)
- Prednylidene (CAS 599-33-7)
- 4-tert-Butyl 2-methyl (2R,4R,5S)-5-phenylpyrrolidine-2,4-dicarboxylate (CAS 1219344-80-5)
- tert-Butyl 3-(4-chlorophenyl)-3-hydroxyazetidine-1-carboxylate (CAS 1447464-04-1)
- 4-Methoxy-5-methylacridin-9(10H)-one (CAS 88377-24-6)
- 2-((3R,4S)-4-hydroxypyrrolidin-3-yl)acetonitrile (CAS 2227679-48-1)
- 4-(Isobutylthio)butan-1-amine (CAS 1157041-58-1)
- N-(4-Chlorophenyl)-4-nitrobenzenesulfonamide (CAS 16937-03-4)
- 3-Amino-N-(2-chloro-4-methylphenyl)propanamide hydrochloride (CAS 1251924-84-1)
- Xenopsin-Related Peptide 2 (XP-2) (H-9340.0005) (CAS 117442-29-2)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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