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Study Information
Study Attribute Value
CEBS Accession Number: 002-03143-0011-0000-5
Chemical Name: o-Toluidine hydrochloride
CASRN: 636-21-5
NTP Study Type: Genetic Toxicology - Rodent Cytogenetics
NTP Study ID: 938330_SCE
Study Result: Positive


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 2)
Initial Treatment Date Tissue Sample Time (h) Sex Species Strain Protocol Trial Result
08/01/1988 Bone Marrow 23 Male Mouse B6C3F1 IP/IJ x 1,  23 hour Positive

Test Group Dose
(mg/kg)
Animal
Number
No.
Cells
SCE / Cell
Mean ± SEM
Vehicle Control Phosphate Buffered Saline
 0         
8558 25 2.96 ± 0.313
    8559 25 5.54 ± 0.640
    8560 25 4.76 ± 0.661
    8561 25 3.72 ± 0.402
Average   4.25 ± 0.568
 
Test Chemical o-Toluidine hydrochloride
450         
8518 25 10.46 ± 0.816
    8519 25 8.13 ± 0.843
    8520 25 5.32 ± 0.489
    8521 25 10.04 ± 1.456
Average   8.49 ± 1.172
 
Test Chemical o-Toluidine hydrochloride
600         
8523 25 7.03 ± 0.962
    8525 25 6.06 ± 0.790
    8526 25 5.98 ± 0.338
Average   6.35 ± 0.338
 
Positive Control Mitomycin-C
1         
8563 25 6.76 ± 0.698
    8564 25 7.06 ± 0.579
    8565 25 6.92 ± 0.624
    8566 25 6.28 ± 0.430
Average   6.76 ± 0.169
 

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