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Study Information
Study Attribute Value
CEBS Accession Number: 002-01515-0013-0000-8
Chemical Name: 4-Nitro-o-phenylenediamine
CASRN: 99-56-9
NTP Study Type: Genetic Toxicology - Rodent Cytogenetics
NTP Study ID: 704945_SCE
Study Result: Negative (Nonstandard Protocol)


Table Instructions and Notes:

Below are the detailed Sister Chromatid Exchange data. You may also view the summary data for this study.


Detailed Sister Chromatid Exchange Data (Trial 1)
Initial Treatment Date Tissue Sample Time (h) Sex Species Strain Protocol Trial Result
06/12/1984 Bone Marrow 23 Male Mouse B6C3F1 IP/IJ x 1,  23 hour Negative

Test Group Dose
(mg/kg)
Animal
Number
No.
Cells
SCE / Cell
Mean ± SEM
Vehicle Control Dimethyl Sulfoxide
 0         
1596 25 3.89 ± 0.473
    1597 25 3.50 ± 0.511
    1598 25 4.06 ± 0.396
    1599 25 6.41 ± 1.051
Average   4.47 ± 0.658
 
Test Chemical 4-Nitro-o-phenylenediamine
250         
1546 25 5.88 ± 0.773
    1547 25 5.22 ± 0.578
    1548 25 5.59 ± 0.799
    1549 25 8.06 ± 1.225
Average   6.19 ± 0.638
 
Test Chemical 4-Nitro-o-phenylenediamine
500         
1551 25 4.41 ± 0.547
    1552 25 4.01 ± 0.608
    1553 25 7.49 ± 0.715
    1554 25 5.64 ± 0.640
Average   5.39 ± 0.781
 
Test Chemical 4-Nitro-o-phenylenediamine
1000         
1556 25 6.89 ± 0.753
    1557 25 7.84 ± 1.087
    1558 12 5.25 ± 0.641
    1689 25 6.17 ± 0.806
Average   6.72 ± 0.548
 
Positive Control Dimethylbenzanthracene
10         
1541 25 14.47 ± 1.040
    1542 25 10.12 ± 0.754
    1543 25 13.22 ± 1.336
    1544 25 13.34 ± 1.011
Average   12.79 ± 0.932
 

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