Neomycin EP Impurity B CAS 54617-39-9
| CAS No. | 54617-39-9 |
| Molecular Formula | C14H28N4O7 |
| Molecular Weight | 364.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Neomycin EP Impurity B 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 Neomycin EP Impurity B (CAS 54617-39-9), a pharmacopoeial impurity reference standard (molecular formula C14H28N4O7, MW 364.39 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C14H28N4O7, Neomycin EP Impurity B contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 364.39 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.
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 | C14H28N4O7 |
| Molecular Weight | 364.39 g/mol |
| Appearance | White to pale yellow crystalline powder |
| Purity | >80% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1972 |
| Nitrogen Atoms | 4 |
Related Neomycin Standards
- Neomycin Impurity 18 (CAS CATO-C4X-184518)
- Neomycin Impurity 17 (CAS CATO-C4X-184517)
- Neomycin Sulfate EP Impurity A (CAS 3947-65-7)
- Neomycin Impurity 14 (CAS CATO-C4X-184514)
- Neomycin Impurity 15 (CAS 58096-76-7)
- Neomycin Impurity 13 (CAS 58152-23-1)
- Neomycin Impurity N1 (CAS 55781-25-4)
- Neomycin Impurity 7 (CAS 59433-00-0)
Recommended Standards
- Cinepazide Impurity 4 (CAS 54063-23-9)
- Ofloxacin-D3 (CAS 1173147-91-5)
- Cinepazide Impurity 13 (CAS 88133-87-3)
- Meptyldinocap (CAS 131-72-6)
- Baricitinib Impurity N3 (CAS 136823-41-1)
- Imipenem EP Impurity A (CAS 59995-64-1)
- Orbifloxacin EP Impurity F (CAS 106890-70-4)
- 5-Methyl-2-(7-oxa-2-azaspiro[3.5]Nonan-2-yl)nicotinic acid (CAS 1902114-17-3)
- [(2-Methoxyphenyl)methyl](prop-2-en-1-yl)amine (CAS 243462-39-7)
- 3-(3-Furyl)acrylic acid (CAS 39244-10-5)
- Pyridinium, 2,2′,2′′,2′′′-(21H,23H-porphine-5,10,15,20-tetrayl)tetrakis[1-ethyl-, tetrachloride (CAS 223723-78-2)
- Benzyl (4-amino-1-(cyanomethyl)cyclohexyl)carbamate (CAS 1656989-86-4)
- 10-(2-Ethylhexyl)-10H-phenothiazine (CAS 264264-00-8)
- (10-31)Semaglutide (CAS CATO-C4X-2226283)
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