Pentoxifylline EP Impurity H(DiHCl) CAS CATO-C4X-17288
| CAS No. | CATO-C4X-17288 |
| Molecular Formula | C18H26N4O4 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Pentoxifylline EP Impurity H(DiHCl) (CAS CATO-C4X-17288) is a certified pharmaceutical impurity reference standard with the molecular formula C18H26N4O4HCl and a molecular weight of 398.89 g/mol.
Structurally, Pentoxifylline EP Impurity H(DiHCl) (C18H26N4O4HCl) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 398.89 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
CATO manufactures Pentoxifylline EP Impurity H(DiHCl) 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.
Physical & Chemical Properties
| Molecular Formula | C18H26N4O4 2*HCl |
| Molecular Weight | 398.89 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, 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Pentoxifylline Standards
- Pentoxifylline Impurity 18 (CAS 1185878-98-1)
- Pentoxifylline D5 (CAS 1185995-18-9)
- Pentoxifylline Impurity 17 (CAS 1185995-26-9)
- Pentoxifylline Impurity N2 (CAS 1243654-85-4)
- Pentoxifylline Impurity 15 (CAS 1246816-64-7)
- Pentoxifylline Impurity 21 (CAS 14447-27-9)
- Pentoxifylline Impurity 9 (CAS 1597448-45-7)
- Pentoxifylline Impurity 14 (CAS 16015-11-5)
Recommended Standards
- Empagliflozin Impurity N6 (CAS 333359-90-3)
- Pentoxifylline EP Impurity F-13C (CAS 202282-98-2)
- Glycerol Impurity 44 (CAS CATO-C4X-217144)
- (3-Methoxyphenyl)(5-(2-methoxyphenyl)-1H-1,2,4-triazol-3-yl)methanamine (CAS 1710846-43-7)
- 3-Bromo-2-methoxypyridin-4-ol (CAS 1427502-74-6)
- N-(3-(Dimethylamino)-2,3,4,9-tetrahydro-1H-carbazol-6-yl)-4-fluorobenzamide (CAS 186543-64-6)
- (R)-2,2',3,3'-Tetrahydro-1,1'-spirobi[indene]-7,7'-diyl bis(trifluoromethanesulfonate) (CAS 528521-72-4)
- 4-Bromo-2-nitro-6-(trifluoromethyl)aniline (CAS 157026-18-1)
- (S)-2-Hydrazinyl-3-(3-hydroxy-4-(phosphonooxy)phenyl)-2-methylpropanoic acid (CAS 1907685-81-7)
- Semaglutide impurity 101 (CAS CATO-C4X-2226101)
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