DTP’s Natural Products Repository is the world’s largest storehouse of natural products. It houses close to >200,000 extracts from samples of more than 70,000 plants and >20,000 marine organisms collected from more than 29 countries, plus extracts of diverse bacteria and fungi. In addition the NCI Natural Products Repository also includes pre-fractionated natural products extracts created through the NCI Program for Natural Products Discovery. The pre-fractionated extract library has 500,000 partially-purified plated fractions, crated from NPB crude extracts, available for screening. The N… [learn more]

The Specimen Resource Locator (SRL) is a biospecimen resource database designed to help researchers locate resources that may have the samples needed for their investigational use. This publicly searchable database includes information about biospecimen banks and sample procurement services. The specimens and samples come from non-commercial, either NCI or non-NCI-funded resources. Investigators can search the database and gain access to thousands of specimens of various tumor, organ, and preservation methods. Please submit all SRL inquiries using the “Contact the Expediter” button on t… [learn more]