Methylene blue Impurity 10 CAS CATO-C4X-189610
| CAS No. | CATO-C4X-189610 |
| Molecular Formula | C14H12IN2S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Methylene blue Impurity 10 (CAS CATO-C4X-189610), a pharmacopoeial impurity reference standard (molecular formula C14H12IN2SI, MW 494.12 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, iodine substitution, Methylene blue Impurity 10 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 494.12 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C14H12IN2S I |
| Molecular Weight | 494.12 g/mol |
| Purity | >95% |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | I-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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- 2,3,4,9-Tetrahydro-1H-carbazole-1-carbonitrile (CAS 494203-96-2)
- 6-(Cyclopent-3-en-1-yloxy)picolinonitrile (CAS 1355334-54-1)
- 2-Bromo-5-chloro-4,6-dimethylnicotinonitrile (CAS 344749-28-6)
- (D-Ala1)-Peptide T amide (CAS 106362-34-9)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com