Phenylephrine Impurity N1 CAS 18791-20-3
| CAS No. | 18791-20-3 |
| Molecular Formula | C9H9NO4 |
| Molecular Weight | 195.17 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Phenylephrine Impurity N1 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.
CATO supplies Phenylephrine Impurity N1 (CAS 18791-20-3), a pharmacopoeial impurity reference standard (molecular formula C9H9NO4, MW 195.17 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Phenylephrine Impurity N1 (C9H9NO4) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 | C9H9NO4 |
| Molecular Weight | 195.17 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 1 |
Related Phenylephrine Standards
- Phenylephrine Impurity 93 (CAS CATO-C4X-146793)
- Phenylephrine Impurity 71 (CAS CATO-C4X-146771)
- Phenylephrine Impurity N2 (CAS 3571-34-4)
- Phenylephrine Impurity 82 (CAS CATO-C4X-146782)
- Phenylephrine Impurity 25 (CAS 85299-04-3)
- Phenylephrine Impurity 56 (CAS CATO-C4X-146756)
- Phenylephrine Impurity 36 (CAS CATO-C4X-146736)
- Phenylephrine Impurity 89 (CAS CATO-C4X-146789)
Recommended Standards
- (S)-5,6-Dihydroxyindoline-2-carboxylic acid (CAS 18766-67-1)
- ((2S,3S)-3-(4-Nitrophenyl)oxiran-2-yl)methanol (CAS 1885-07-0)
- 3-Methyl-2-nitrophenylacetic acid (CAS 18710-86-6)
- 4-Nitrophenyl propionate (CAS 1956-06-5)
- Indacaterol Impurity 31 (CAS CATO-C4X-150031)
- Epinastine Impurity N8 (CAS 74860-00-7)
- Methylprednisolone impurity 85 (CAS CATO-C4X-191985)
- 5-Nitro-6-(trifluoromethyl)-1,2,3,4-tetrahydropyrimidine-2,4-dione (CAS 652-43-7)
- 4-(3-Hydroxypropoxy)benzaldehyde (CAS 99186-35-3)
- 4-(1-Hydroxyethyl)benzaldehyde (CAS 80463-21-4)
- 1-(4-Methoxy-1-methyl-1H-pyrazol-3-yl)ethan-1-amine dihydrochloride (CAS 2137581-69-0)
- Ethyl 3-(4-Amino-2-fluorophenyl)propanoate (CAS 865137-77-5)
- 4-(4-Bromothiazol-2-yl)morpholine (CAS 1017781-60-0)
- CGMP Dependent Kinase Inhibitor Peptide (CAS 82801-73-8)
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