Dotinurad Impurity 243 CAS CATO-C4X-2494243
| CAS No. | CATO-C4X-2494243 |
| Molecular Formula | C14H10ClNO4S |
| Molecular Weight | 323.75 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Dotinurad Impurity 243 (CAS CATO-C4X-2494243), a pharmacopoeial impurity reference standard (molecular formula C14H10ClNO4S, MW 323.75 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Dotinurad Impurity 243 (C14H10ClNO4S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 323.75 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Dotinurad Impurity 243 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 | C14H10ClNO4S |
| Molecular Weight | 323.75 g/mol |
| Purity | ≥95% |
| 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Dotinurad Standards
- Dotinurad Impurity 39 (CAS CATO-C4X-249439)
- Dotinurad Impurity 141 (CAS CATO-C4X-2494141)
- Dotinurad Impurity 31 (CAS CATO-C4X-249431)
- Dotinurad Impurity 52 (CAS CATO-C4X-249452)
- Dotinurad Impurity 93 (CAS CATO-C4X-249493)
- Dotinurad Impurity 132 (CAS CATO-C4X-2494132)
- Dotinurad Impurity 133 (CAS CATO-C4X-2494133)
- Dotinurad Impurity 11 (CAS 1285572-54-4)
Recommended Standards
- N-(7-Chloro-4-methoxybenzo[d]thiazol-2-yl)-3-methylisoxazole-5-carboxamide (CAS 946287-39-4)
- N-(4-chloro-3-nitrophenyl)-2-(pyridin-2-ylthio)acetamide (CAS 329779-35-3)
- 1-({4-chloro-5,6-dimethylthieno[2,3-d]pyrimidin-2-yl}methyl)-4-nitro-1h-imidazole (CAS 1097126-83-4)
- Methyl 2-((4-chloro-2-nitrophenyl)thio)benzoate (CAS 92161-65-4)
- Ivabradine Impurity 2 (CAS 148849-68-7)
- Doxapram Impurity 31 (CAS 1415394-56-7)
- Dopamine Impurity 16 (CAS 67992-45-4)
- 1-(2-methoxy-2-methyl-propyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole (CAS 1298032-47-9)
- methyl (1R,3S)-3-[(2-methylpropan-2-yl)oxycarbonylamino]cyclohexane-1-carboxylate (CAS 1820583-20-7)
- 4-Bromo-5-fluoro-2,3-dihydro-1H-indene (CAS 2375274-65-8)
- Pimavanserin Impurity 2 (CAS 103907-97-7)
- Ethyl 6-chloro-5-oxohexanoate (CAS 79685-55-5)
- Methyl 3-[2-(dimethylsulfamoyl)phenyl]-5-fluorobenzoate (CAS 1820734-79-9)
- Semaglutide Impurity 152 xTFA (CAS CATO-C4X-2226152)
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