New Product Express Issue 024 | New Impurities for Antiviral and Clinically Common Drugs Launched, Full Set of Compliance Spectra to Safeguard R&D

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2026-08-18

New Product Express Issue 024 | New Impurities for Antiviral and Clinically Common Drugs Launched, Full Set of Compliance Spectra to Safeguard R&D

Introduction: The "New Challenges" of High-Frequency Drug Impurities

From the antiviral drug Peramivir used during flu season, to the new-generation acid-suppressing drug Tegoprazan; from the classic glucocorticoid Hydrocortisone, to the monobactam antibiotic Aztreonam, and the well-known old antihistamine Chlorphenamine—these clinically high-frequency drugs have stood the test of time, yet the standards for impurity research never stop evolving: complex structures, multiple chiral centers, diverse degradation pathways, coupled with the re-evaluation of old drugs and continuous updates to current pharmacopoeias. The completeness of impurity reference standards directly affects the progress of drug quality research and registration filing.

As a professional supplier deeply engaged in the field of impurity reference standards, Sinco focuses on five core varieties across major therapeutic areas in this issue, covering impurities of Tegoprazan, Peramivir, Chlorphenamine, Hydrocortisone, and Aztreonam, providing a full set of compliance spectra to offer traceable reference support for your impurity research.

Star Products of This Issue

New Acid-Suppressing Drug: Tegoprazan Impurities

[Common Challenges] Benzimidazole + difluorobenzopyran ether dual weak-base system; the side-chain amide bond is prone to hydrolysis under acidic/alkaline/thermal conditions, and the pyran ether undergoes ring-opening under strong acid; with a single chiral center, strict control of the (R)-enantiomer is required.

[Sinco Provides] A cumulative coverage of 93 related impurities, with a full set of analytical spectra available to support method validation and system suitability testing. For the complete impurity list, see [Read More] at the end of the article.

Antiviral Influenza: Peramivir Impurities

[Common Challenges] The cyclopentane core contains multiple chiral centers, making the separation of stereoisomeric impurities highly difficult; the coexistence of polar groups such as guanidine and carboxylic acid results in weak retention and prone tailing in reversed-phase chromatography, posing significant challenges for analytical method development.

[Sinco Provides] A cumulative coverage of 96 related impurities, with a full set of structural confirmation spectra available, providing compliant reference standard support for chiral method development and impurity quantification. For the complete impurity list, see [Read More] at the end of the article.

New Product Express Issue 024 | New Impurities for Antiviral and Clinically Common Drugs Launched, Full Set of Compliance Spectra to Safeguard R&D

Classic Antihistamine: Chlorphenamine Impurities

[Common Challenges] Contains a chiral center, making racemate resolution and enantiomeric impurity control difficult; the tertiary amine structure is prone to oxidation to generate oxidative impurities such as N-oxides, requiring continuous monitoring

[Sinco Provides] A cumulative coverage of 31 related impurities, with a full set of compliance spectra available to support method development and chiral HPLC method transfer studies. For the complete impurity list, see [Read More] at the end of the article.

Classic Steroid: Hydrocortisone Impurities

[Common Challenges] The steroid tetracyclic skeleton has densely packed chiral centers, resulting in a large number of isomers that are difficult to separate; the 11-hydroxy group is easily oxidized to 11-ketone (cortisone), making the monitoring of oxidative degradation products a key focus; sensitive to light/heat, resulting in a complex degradation impurity profile.

[Sinco Provides] A cumulative coverage of 37 related impurities, with a full set of structural confirmation spectra available to support chiral separation method research and validation. For the complete impurity list, see [Read More] at the end of the article.

Anti-infective: Aztreonam Impurities

[Common Challenges] The monobactam β-lactam ring has high ring strain and is prone to hydrolytic ring-opening; the side chain contains amino acid and sulfonic acid group structures, resulting in many process-related impurities; ring-opening products further condense to generate polymer impurities, requiring strict monitoring.

[Sinco Provides] A cumulative coverage of 43 related impurities, with a full set of authoritative spectra (including COA, NMR, MS, HPLC, etc.) available, providing compliant reference standard support for the quality research of monobactam antibiotics. For the complete impurity list, see [Read More] at the end of the article.