Hyoscyamine Impurity 3 CAS CATO-C4X-34373
| CAS No. | CATO-C4X-34373 |
| Molecular Formula | C16H21NO4 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Hyoscyamine Impurity 3 (C16H21NO4HCl) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 327.81 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Hyoscyamine Impurity 3 (CAS CATO-C4X-34373) is a certified pharmaceutical impurity reference standard with the molecular formula C16H21NO4HCl and a molecular weight of 327.81 g/mol.
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.
As a certified reference material (CRM), Hyoscyamine Impurity 3 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 | C16H21NO4 HCl |
| Molecular Weight | 327.81 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Hyoscyamine Standards
- (-)-Hyoscyamine (CAS 101-31-5)
- Hyoscyamine Hydrobromide (CAS 306-03-6)
- Hyoscyamine EP Impurity E TFA Salt (CAS 537-29-1(free base))
- Hyoscyamine EP Impurity E Trifluoroacetate Salt (CAS 537-29-1（free base）)
- Hyoscyamine Hydrochloride - API Standards (CAS 5934-50-9)
- Hyoscyamine sulfate (CAS 620-61-1)
- Hyoscyamine Sulphate Hydrate (CAS 6835-16-1)
- Hyoscyamine Impurity 10 (CAS CATO-C4X-343710)
Recommended Standards
- Tofacitinib Impurity 103 (CAS CATO-C4X-1079103)
- Atenolol Impurity 26 (CAS CATO-C4X-154926)
- Nimesulide EP Impurity F (CAS 51765-72-1)
- Methyl 2-(2,3-dihydrobenzo[b][1,4]dioxin-2-yl)acetate (CAS 111042-25-2)
- H-D-Ala-D-Ala-OH (CAS 923-16-0)
- 2-(Diethylamino)acetamide (CAS 7409-48-5)
- 1646-99-7 2-Methylbutanal 2,4-Dinitrophenylhydrazone 2-Methylbutanal 2-(2,4-Dinitrophenyl)hydrazone 2-Methylbutyraldehyde (2,4-Dinitrophenyl)hydrazone |A-Methylbutyraldehyde 2,4-Dinitrophenylhydrazone (CAS 1646-99-7)
- 1-(3-Methylcyclohexyl)ethan-1-amine (CAS 1247891-07-1)
- 1-(4-Fluorophenyl)cyclohexanecarbonitrile (CAS 71486-43-6)
- Semaglutide Impurity 149 (CAS CATO-C4X-2226149)
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