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Study Information
Study Attribute Value
CEBS Accession Number: 002-02466-0005-0000-5
Chemical Name: Methylenedianiline
CASRN: 101-77-9
NTP Study Type: Genetic Toxicology - Rodent Cytogenetics
NTP Study ID: 535562_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 4)
Initial Treatment Date Tissue Sample Time (h) Sex Species Strain Protocol Trial Result
10/11/1988 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 Dimethyl Sulfoxide
 0         
8598 25 5.04 ± 0.570
    8599 25 4.57 ± 0.461
    8600 25 5.24 ± 0.664
    8601 25 2.72 ± 0.339
Average   4.39 ± 0.575
 
Test Chemical Methylenedianiline
50         
8568 25 3.89 ± 0.357
    8569 25 4.83 ± 0.527
    8570 25 4.92 ± 0.424
    8571 25 5.21 ± 0.499
Average   4.71 ± 0.287
 
Test Chemical Methylenedianiline
100         
8573 25 5.49 ± 0.411
    8574 25 6.64 ± 0.700
    8575 25 3.88 ± 0.484
    8576 25 4.57 ± 0.487
Average   5.15 ± 0.598
 
Test Chemical Methylenedianiline
200         
8578 25 8.84 ± 0.733
    8579 25 7.08 ± 0.614
    8580 25 7.77 ± 0.747
    8581 25 8.20 ± 0.494
Average   7.98 ± 0.370
 
Positive Control Dimethylbenzanthracene
2.5       
8603 25 10.01 ± 0.958
    8604 25 14.90 ± 1.292
    8605 25 9.64 ± 0.945
    8606 25 11.13 ± 0.720
Average   11.43 ± 1.203
 

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