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Study Information
Study Attribute Value
CEBS Accession Number: 002-02561-0017-0000-4
Chemical Name: N-Nitrosodimethylamine
CASRN: 62-75-9
NTP Study Type: Genetic Toxicology - Drosophila Germ Cell Mutagenicity
NTP Study ID: 657173_RT
Study Result: Positive

Drosophila Reciprocal Translocations Study Details
Route of Exposure Dose
ppm		 Solvent No. RTs / No. tests per sperm batch (in days of storage *) Total No. of Translocations Translocation
Frequency
(%)
0-3 3-7 7-10 10-14 14-17 17-20
Test Chemical 
1000         
 Normal Saline 0/0 0/1090 4/1204 2/1112 0/0 0/0 6/3406 0.18 
1000         
 Sucrose 0/0 0/1272 8/1268 18/1242 0/0 0/0 26/3782 0.69
 
Vehicle Control 
 0         
 Normal Saline 0/0 0/1308 0/646 0/486 0/0 0/0 0/2440 0.00 
 0         
 Sucrose 0/0 0/12766 0/676 0/11658 0/0 0/0 0/25100 0.00
 
Days of Storage: The number of days sperm were stored in the female before testing.