Terazosin EP Impurity D HCl CAS 84050-21-5
| CAS No. | 84050-21-5 |
| Molecular Formula | C15H19N5O3 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Terazosin EP Impurity D HCl (CAS 84050-21-5), a pharmacopoeial impurity reference standard (molecular formula C15H19N5O3HCl, MW 353.81 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Terazosin EP Impurity D HCl is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 353.81 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
As a certified reference material (CRM), Terazosin EP Impurity D HCl meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C15H19N5O3 HCl |
| Molecular Weight | 353.81 g/mol |
| Appearance | Pale yellow to 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1981 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
Related Terazosin Standards
- Terazosin-d8 (CAS 1006718-20-2)
- Terazosin EP Impurity D (CAS 102714-74-9)
- Terazosin EP Impurity E (CAS 102839-00-9)
- Terazosin EP Impurity G (CAS 105356-89-6)
- Terazosin EP Impurity H (CAS 105356-90-9)
- Terazosin EP Impurity H HCl (CAS 105356-90-9 (free base))
- (R)-Terazosin (CAS 109351-34-0)
- Terazosin EP Impurity F (CAS 109678-71-9)
Recommended Standards
- Rizatriptan impurity 01 (CAS 1030849-63-8)
- Itopride Impurity 27 (CAS CATO-C4X-137727)
- Lasmiditan Impurity 53 (CAS CATO-C4X-247853)
- 2-Amino-4-(2-fluorophenyl)thiophene-3-carboxamide (CAS 954572-89-5)
- 2-Cyclopropyl-3-(4-iodo-1h-pyrazol-1-yl)-2-(methylamino)propanamide (CAS 1342606-62-5)
- 4-Nitrophenyl N,N'-Diacetyl-β-D-chitobioside (CAS 7284-16-4)
- Glutathione (1S, 2R)-Isomer (CAS 274260-05-8)
- 4-Cyclopropoxy-5-(methylamino)nicotinic acid (CAS 1243310-61-3)
- 3-(Hydroxymethyl)thiomorpholine 1,1-dioxide hydrochloride (CAS 1797609-81-4)
- Osteogenic Growth Peptide (10-14) (CAS 105250-85-9)
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