Irina Oshchepkova
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Articles
Recent activity by Irina Oshchepkova-
ChemSketch: Unable to Establish Connection with ChemSketch error
Description: Sometimes you can treat this error message after long term launching your software: "Unable to establish connection with ChemSketch. If the programs have been properly installed, try t...
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ChemSketch: Export to SDF ChemBasic tool doesn’t support text fields
DescriptionWhen exporting structures from ChemSketch to SDF, using Sketch-To-SDF Converter , users notice that custom text labels (internal sample IDs, batch numbers) drawn on the canvas do not ap...
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ChemSketch: Pasting from external sources produces a low‑resolution bitmap rather than an editable structure
DescriptionWhen users copy a structure from another application (such as a PDF viewer, office document, or web browser) and paste into ChemSketch, they get a low‑resolution bitmap image rather than...
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ChemSketch: Convenient structure search through the documents
DescriptionChemSketch allows you to search for a specific structure or structures in the files without opening them.Draw a structure or structures that you want to find. If several structures are d...
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ChemSketch: Creating and using custom structure templates
DescriptionIf the structure of a large chemical compound is required several times, it makes sense to create a User Template so that it can be accessed with just one click.SolutionDraw the structu...
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ChemSketch: Drawing polymers with repeating units
DescriptionChemSketch supports drawing polymers using repeating unit notation, which is useful for documenting structures of macromolecules and for communication in reports.SolutionOpen ChemSketch ...
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Percepta: Drawing R‑group Structures in Percepta vs. ChemSketch
DescriptionIn Percepta, R‑groups are represented directly using the R1 label (for example, c1ccccc1[R1]).In ChemSketch, R1 is not recognized as a generic R‑group in SMILES. Instead, use an asterisk...
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ChemSketch: SMILES Compatibility Issues
DescriptionSometimes, when you generate a SMILES code using ChemSketch, other software tools, cheminformatics platforms, or public databases may not recognize or accept the code for structure searc...
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Spectrus: Incorrect reference solvent applied after importing NMR data from vendor format
DescriptionWhen importing NMR data from certain vendor formats, Spectrus may automatically assign the wrong solvent (e.g., DMSO‑d₆ vs CDCl₃). This leads to systematic shift offsets or incorrect lab...
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Spectrus: Peaks are visible in NMR spectrum but cannot be picked or integrated due to incorrect nucleus or experiment type
DescriptionUsers import an NMR dataset into Spectrus and see a spectrum, but peak picking and integral tools appear disabled or do nothing. On inspection, the record may be tagged with the wrong nu...