Vismodegib Impurity 8 NEW

Vismodegib Impurity 8；879088-40-1

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E-mail: anna@molcoo.com.

• Product Information

• Product Number: V043008

• English Name: Vismodegib Impurity 8

• English Alias: 2-(2-chloro-5-nitrophenyl)pyridine

• CAS Number: 879088-40-1

• Molecular Formula: C₁₁H₇ClN₂O₂

• Molecular Weight: 234.64

• Advantages

• As a nitrophenylpyridine impurity of Vismodegib, this compound has the following advantages:
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• Well-defined and highly characteristic structure: Its aromatic structure containing chlorine atom, nitro group, and pyridine ring is significantly different from Vismodegib's benzamide structure, enabling accurate identification via techniques like HPLC and GC-MS, serving as a specific marker for impurity detection;

• High stability and traceability: The nitro and pyridine ring structures are stable under conventional storage conditions. As a potential raw material impurity in Vismodegib's nitro reduction step (where nitro groups are not fully reduced to amino groups), it directly reflects incomplete nitro hydrogenation, improving process tracing accuracy;

• High detection sensitivity: The conjugated system of nitro group and aromatic ring shows strong UV absorption (around 260nm), allowing trace analysis via HPLC-UV, reducing detection costs and enhancing method applicability.

• Applications

• Pharmaceutical quality control: Used as an impurity reference standard to identify and quantify Impurity 8 in Vismodegib APIs, ensuring residual nitro-containing raw materials in reduction reactions meet quality standards;

• Synthesis process optimization: Reducing raw material residues by monitoring impurity content and optimizing hydrogenation catalysts (e.g., palladium on carbon) and reaction pressure, improving nitro reduction efficiency;

• Reduction efficiency evaluation: Used to assess the conversion rate of nitro to amino groups in Vismodegib synthesis, aiding in verifying the effectiveness of reduction processes.

• Background Description

• Vismodegib is a Hedgehog signaling pathway inhibitor used in treating tumors such as basal cell carcinoma. In its synthesis, 2-(2-chloro-5-nitrophenyl)pyridine is a key raw material for nitro reduction reactions. Incomplete hydrogenation or inadequate raw material purification can lead to residual nitro impurities. Such nitro compounds may have potential toxicity (e.g., mutagenicity), making their control critical for ensuring Vismodegib's safety.

• Research Status

• Current research focuses on:
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• Detection method optimization: Using UPLC-MS/MS technology to optimize ion source parameters based on the electronegativity of nitro groups, achieving trace detection of this impurity (detection limits up to ppb level);

• Reduction process improvement: Enhancing nitro conversion by adjusting hydrogenation temperature and hydrogen flow rate to reduce impurity formation;

• Toxicological evaluation: Assessing the mutagenicity of this nitro compound via Ames tests to support strict impurity limit standards;

• Raw material purification: Developing refining processes (e.g., column chromatography) for nitro-containing raw materials to reduce initial impurity levels and ease subsequent purification burdens.

We can also customize related analogues and modified peptides including HPLC, MS, 1H-NMR, MS, HPLC, IR, UV, COA, MSDS.
This product is intended for laboratory use only!

WhatsAPP: +86 17386083646
E-mail: anna@molcoo.com