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Study Information
Study Attribute Value
CEBS Accession Number: 002-02706-0008-0000-5
Chemical Name: Polybrominated biphenyl mixture (Firemaster FF-1)
CASRN: 67774-32-7
NTP Study Type: Genetic Toxicology - Rodent Cytogenetics
NTP Study ID: 103512_SCE
Study Result: Negative (Nonstandard Protocol)


Table Instructions and Notes:

Below is a summary of Sister Chromatid Exchange data. Use the link below the summary tables to view detailed data for that specific trial.


Summary of Sister Chromatid Exchange Data (Trial 1)
Test Type Start Date Sample Time (h) Species Sex Strain Tissue Protocol Trend
Test P
SCE 12/10/87 23 Mouse Male B6C3F1 Bone Marrow IP/IJ x 1,  23 hour
  Dose
(mg/kg)		 n SCE / Cell
(Mean ± SEM)		 Pairwise P
Vehicle Control Corn Oil 
 0         
 4 4.25 ± 0.567
Test Chemical Polybrominated biphenyl mixture (Firemaster FF-1) 
1250         
 4 5.19 ± 0.153
  
2500         
 4 5.60 ± 0.872
  
5000         
 4 4.30 ± 0.348
Positive Control Dimethylbenzanthracene 
2.5       
 4 8.81 ± 1.149


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