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FDA presenter encourages structured SD files to remove ambiguity in chemical structure submissions
Summary
Agency official said submitting structured chemical-structure (SD) files with Type 2 DMFs helps the agency use machine-readable representations to ensure the structure assessed is the structure intended, reducing duplication of work.
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The presenter said the agency has seen an increase in structured data (SD) file submissions for Type 2 DMFs and encouraged their use because they provide unambiguous chemical-structure information in a machine-readable mole-connection table. "It ensures that the structure that you intend for us to assess is the 1 that we're assessing," the Agency official said.
She noted a short SD-file guide is available for those who have not submitted such files before and urged applicants to consider SD submissions to expedite assessment and reduce duplicative work during review.

