Urapidil Impurity 36 CAS 5770-44-5
| CAS No. | 5770-44-5 |
| Molecular Formula | C8H13N3O3 |
| Molecular Weight | 199.21 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Urapidil Impurity 36 (C8H13N3O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Urapidil Impurity 36 (CAS 5770-44-5), a pharmacopoeial impurity reference standard (molecular formula C8H13N3O3, MW 199.21 g/mol) used for the identification and quantification of trace impurities in APIs.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO manufactures Urapidil Impurity 36 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 | C8H13N3O3 |
| Molecular Weight | 199.21 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 3 |
Related Urapidil Standards
- Urapidil Impurity 54 (CAS 13300-33-9)
- Urapidil Impurity 74 (CAS CATO-C4X-192474)
- Urapidil Impurity 95 (CAS CATO-C4X-192495)
- Urapidil Impurity 52 (CAS 5770-45-6)
- Urapidil Impurity 51 (CAS 70540-90-8)
- Urapidil Impurity 71 (CAS CATO-C4X-192471)
- Urapidil Impurity 92 (CAS CATO-C4X-192492)
- Urapidil Impurity N2 (CAS 16015-71-7)
Recommended Standards
- Pranoprofen Impurity 79 (CAS CATO-C4X-181179)
- Atazanavir Sulfate EP Impurity A (CAS 4385-62-0)
- Allopurinol impurity 23 (CAS CATO-C4X-145823)
- Alanyl Glutamine Impurity 48 (CAS 2703745-19-9)
- Ezetimibe Impurity 118 (CAS CATO-C4X-1098118)
- Amiloride EP Impurity C HCl (CAS 1207-29-0)
- Travoprost Impurity 29 (CAS 2557327-05-4)
- Ethyl cis-2-Aminocyclopentanecarboxylate Hydrochloride (CAS 142547-15-7)
- 9-Hydroxy-9H-xanthene-9-carboxylic acid (CAS 6309-32-6)
- 4-Chloro-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridine-3-carbonitrile (CAS 920965-86-2)
- (S)-Propyl 2-hydroxypropanoate (CAS 53651-69-7)
- [1-(difluoromethyl)-3,5-dimethyl-1H-pyrazol-4-yl]methanol (CAS 1341983-71-8)
- N-(2-(Dimethylamino)ethyl)-5-methylacridine-4-carboxamide (CAS 106626-72-6)
- [γ-Glu]15 Semaglutide (CAS CATO-C4X-222690)
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