Diphenhydramine Impurity N11 CAS 18608-78-1
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 18608-78-1 |
| Molecular Formula | C17H21ClNO Cl |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Diphenhydramine Impurity N11 (CAS 18608-78-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C17H21ClNO Cl. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C17H21ClNO Cl |
| Molecular Weight | 326.26 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| 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.) | 1962 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Diphenhydramine Standards
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- Diphenhydramine d5 Hydrochloride (CAS 1219795-16-0)
- Diphenhydramine N-Oxide(hydrochloride) (CAS 13168-00-8)
- Diphenhydramine N-Glucuronide (CAS 137908-78-2)
- Diphenhydramine Hydrochloride (CAS 147-24-0)
- Diphenhydramine impurity 18 (CAS 150556-79-9)
- Diphenhydramine EP Impurity A(Dimenhydrinate EP Impurity F) (CAS 17471-10-2)
Recommended Standards
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- Daclatasvir Impurity 34 (CAS CATO-C4X-184834)
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- n-(Benzo[d][1,3]dioxol-5-yl)-4-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)piperazine-1-carboxamide (CAS 866131-92-2)
- 3-(2-bromoethoxy)-1,1,2,2-tetrafluoropropane (CAS 1038730-08-3)
- (4-(4-Ethoxyphenyl)tetrahydro-2H-pyran-4-yl)methanamine (CAS 1152563-72-8)
- Semaglutide impurity 89 (CAS CATO-C4X-222689)
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