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Study Information
Study Attribute Value
CEBS Accession Number: 002-02857-0009-0000-3
Chemical Name: Sulfapyridine
CASRN: 144-83-2
NTP Study Type: Genetic Toxicology - Rodent Cytogenetics
NTP Study ID: 673616_CA
Study Result: Negative (Nonstandard Protocol)

Test Type Start Date Sample Time (h) Species Sex Tissue Protocol Trend Test P
CA 11/07/90 17 Mouse Male Bone Marrow Gavage x 1/study, 17 hour 0.6549
Test Group Dose
(mg/kg)		 n Percent Cells w/ Aberrations
(Mean ± SEM)		 Pairwise P
Positive Control Mitomycin-C 
1         
 8 10.00 ± 2.24 0.0000
Test Chemical Sulfapyridine 
1250         
 8 2.75 ± 0.92 0.2430
  
2500         
 8 1.00 ± 1.00 0.8777
  
5000         
 8 2.00 ± 0.38 0.5000
Vehicle Control No Stressor 
 0         
 8 2.00 ± 0.65 0.0000


Footnotes:
IP/IJ: Intraperitoneal Injection
INHAL: Inhalation
n: Number of animals analyzed