Methylene blue Impurity 9 CAS CATO-C4X-18969
| CAS No. | CATO-C4X-18969 |
| Molecular Formula | C12H6I2NS |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Methylene blue Impurity 9 (CAS CATO-C4X-18969) is a certified pharmaceutical impurity reference standard with the molecular formula C12H6I2NSI and a molecular weight of 576.95 g/mol.
The molecular framework of Methylene blue Impurity 9 (C12H6I2NSI) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, iodine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 manufactures Methylene blue Impurity 9 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H6I2NS I |
| Molecular Weight | 576.95 g/mol |
| Purity | >95% |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| 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 | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
- Benzbromarone Impurity 32 (CAS CATO-C4X-225032)
- Mirogabalin Impurity 202 (CAS CATO-C4X-2924202)
- Resmetirom Impurity 20 (CAS 107228-52-4)
- Bis-sulfone-PEG4-NHS Ester (CAS 2055047-19-1)
- 2-(4-Hydroxy-1-piperidinyl)isonicotinic acid (CAS 167641-00-1)
- 5-Amino-4-(4-chlorophenyl)-1H-pyrazol-3(2H)-one (CAS 62538-19-6)
- 5-Methoxy-2-pyrrolidinone (CAS 63853-74-7)
- 2-(((2-((Dimethylamino)methyl)thiazol-4-yl)methyl)thio)ethanamine hydrochloride(1:x) (CAS 87765-03-5)
- N1,N4-di-2-Pyridinyl-1,4-benzenedimethanamine (CAS 55778-02-4)
- Fibrinopeptide A (human) (CAS 25422-31-5)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com