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5933296 
Technical Report 
Developmental toxicity potential of nitroguanidine in rabbits 
Coppes, VG; Gomez, CL; Magnuson, DK; Korte, DWJ 
1988 
Letterman Army Institute of Research 
San Francisco, CA 
Institute Report No. 298; Toxicology Series 184 
English 
The potential of nitroguanidine to produce developmental toxicity was evaluated in pregnant New Zealand White rabbits. Nitroguanidine, suspended in 1% carboxymethylcellulose, was administered at doses of 0, 100, 316, and 1000 mg/ kg/day by oral gavage on Days 6 through 18 of gestation. Fetuses were delivered by cesarean section on Day 29, weighed and examined externally. The soft tissues were examined while the body was being eviscerated for subsequent processing in alizarin red stain for skeletal examination. Ten dams in the 1000-mg/kg/day group died or were terminated in a moribund condition following a generalized failure to thrive. The dams administered 1000 mg/kg/day nitroguanidine exhibited weight loss and decreased food consumption. Signs of developmental toxicity associated with nitroguanidine administration were an increased incidence of resorptions in all dose groups. Fetuses in the 1000-mg/kg/day group were lighter in weight and had an increased incidence of retarded ossification of the sternebrae, olecranon, patellae, and phalanges. There were no dose-related malformations. On the basis of these findings, we concluded that nitroguanidine had no teratogenic potential but does have the potential to cause developmental toxicity. Keywords: Teratology, Triple base propellants, Teratogenic compounds.