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Screening Data from the Cancer Chemotherapy National Service Center Screening Laboratories. XX

National Cancer Institute National Institutes of Health Bethesda, Maryland 20014

Data are reported on 2133 synthetic compounds which were tested in the CCNSC primary screens. Of these, 885 were tested initially in the cell culture cytotoxicity acreen because of the limited amount of material available. The remainder were tested in the routine rodent tumor screens. Data are reported only on compounds which have not demonstrated sufficient activity in these systems to warrant further investigation.

¹ Chief, Cancer Chemotherapy National Service Center.

² Biologist, Screening Section, Cancer Chemotherapy National Service Center.

³ Biologist, Biochemistry Section, Cancer Chemotherapy National Service Center.

⁴ Assistant Chief, Cancer Chemotherapy National Service Center.