Picosulfate Impurity 32 CAS CATO-C4X-123732
| CAS No. | CATO-C4X-123732 |
| Molecular Formula | C18H13NO8S2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Picosulfate Impurity 32 (CAS CATO-C4X-123732) is a certified pharmaceutical impurity reference standard with the molecular formula C18H13NO8S2Na and a molecular weight of 458.41 g/mol.
Structurally, Picosulfate Impurity 32 (C18H13NO8S2Na) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 458.41 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | C18H13NO8S2 2*Na |
| Molecular Weight | 458.41 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, 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 |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Picosulfate Standards
- Picosulfate Sodium (CAS 10040-45-6)
- Picosulfate Impurity 12 (CAS 105745-58-2)
- Picosulfate Impurity 17 (CAS 109810-81-3)
- Sodium Picosulfate Impurity 11 (CAS 1121-60-4)
- Picosulfate Impurity 16 (CAS 13004-51-8)
- Sodium Picosulfate Monohydrate (CAS 1307301-38-7)
- Picosulfate impurity 23 (CAS 158839-52-2)
- Picosulfate Impurity 15 (CAS 16985-07-2)
Recommended Standards
- Chlorzoxazone Impurity 5 (CAS CATO-C4X-27775)
- Allisartan Isoproxil Impurity 21 (CAS CATO-C4X-321721)
- Acemetacin EP Impurity D (CAS 76812-64-1)
- 1-(Benzo[b]thiophen-3-yl)ethan-1-one (CAS 1128-05-8)
- 3-(4-Methoxyphenyl)-1-phenyl-1H-pyrazole-4-carboxylic acid (CAS 372107-36-3)
- 14-Hydroxy sprengerinin C (CAS 1111088-89-1)
- 5-((3-(3,4-Dimethoxyphenyl)-1-phenyl-1H-pyrazol-4-yl)methylene)-3-(4-methoxybenzyl)-2-thioxothiazolidin-4-one (CAS 623935-83-1)
- 2-(4-(Tert-butoxycarbonyl)-1,4-diazepan-1-yl)-2-(pyridin-3-yl)acetic acid (CAS 885275-68-3)
- 2-(4-Amino-1H-benzo[d]imidazol-1-yl)ethanol (CAS 102872-47-9)
- Semaglutide (CAS 910463-68-2（free base）)
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