Quinine Sulfate - Impurity B (Sulfate Salt) CAS 524-61-8
| CAS No. | 524-61-8 |
| Molecular Formula | C19H22N2O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 410.48 g/mol gives Quinine Sulfate - Impurity B (Sulfate Salt) distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Quinine Sulfate - Impurity B (Sulfate Salt) (CAS 524-61-8), a certified reference material (molecular formula C19H22N2OH2O4SH2O, MW 410.48 g/mol) for analytical method development and quality control.
The molecular framework of Quinine Sulfate - Impurity B (Sulfate Salt) (C19H22N2OH2O4SH2O) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), Quinine Sulfate - Impurity B (Sulfate Salt) 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 | C19H22N2O H2O4S 2*H2O |
| Molecular Weight | 410.48 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Quinine Standards
- Quinine Sulfate Impurity 5 (CAS 101655-92-9)
- Quinine Impurity 1 (CAS 1092116-26-1)
- Quinine N-Oxide (CAS 109906-48-1)
- Quinine Hydrochloride (CAS 130-89-2)
- Quinine (CAS 130-95-0)
- Quinine Sulfate (500 mg) (CAS 207671-44-1)
- Quinine sulfate Impurity 6 (CAS 485-71-2)
- Quinine Sulfate - Impurity C (Sulfate Salt) (CAS 49722-46-5)
Recommended Standards
- 1-(4-Methoxyphenyl)-2-phenyl-4-(p-tolylthio)-6,7-dihydro-1H-indole-5-carbaldehyde (CAS 477869-17-3)
- N-(2-Chloro-4,6-dimethylphenyl)-2-((5-(pyridin-4-yl)-4-(p-tolyl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 477318-73-3)
- 5-Amino-4-bromothiophene-2-carboxylic acid (CAS 1367937-00-5)
- 3-Chloro-1-methylquinolin-2(1H)-one (CAS 941-92-4)
- (5-(Methoxymethyl)-1,2,4-oxadiazol-3-yl)methanamine hydrochloride (CAS 2138533-82-9)
- 2-Methyl-3,5-diphenylisoxazolidine (CAS 69502-76-7)
- 1,5-Dimethyl-N-pentyl-1H-pyrazol-3-amine hydrochloride (CAS 1855948-60-5)
- Pranoprofen Impurity 34 (CAS 2688845-71-6)
- 2-(Aminomethyl)-5-chlorothiophene (CAS 214759-22-5)
- Steroidogenesis-Activator Polypeptide (rat) (H-8855.0500) (CAS 108563-23-1)
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