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Study Information
Study Attribute Value
CEBS Accession Number: 002-01705-0014-0000-0
Chemical Name: Benzoin
CASRN: 119-53-9
NTP Study Type: Genetic Toxicology - Rodent Cytogenetics
NTP Study ID: 243271_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
03/14/1984 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 Corn Oil
 0         
1366 25 3.80 ± 0.404
    1367 25 5.96 ± 0.682
    1368 25 4.13 ± 0.424
    1369 25 4.54 ± 0.487
Average   4.61 ± 0.475
 
Test Chemical Benzoin
750         
1346 25 4.83 ± 0.629
    1347 23 6.24 ± 0.467
    1348 25 4.90 ± 0.598
    1349 25 4.98 ± 0.584
Average   5.22 ± 0.336
 
Test Chemical Benzoin
1500         
1350 25 7.09 ± 0.628
    1351 25 5.14 ± 0.613
    1352 25 5.12 ± 0.609
    1353 25 5.57 ± 0.630
Average   5.73 ± 0.465
 
Test Chemical Benzoin
3000         
1316 25 4.08 ± 0.282
    1317 25 5.12 ± 0.483
    1318 25 4.43 ± 0.574
    1319 25 6.25 ± 0.997
Average   4.97 ± 0.478
 
Positive Control Dimethylbenzanthracene
5         
1325 25 9.33 ± 0.752
    1326 25 10.33 ± 0.928
    1327 25 10.93 ± 0.971
    1328 25 12.00 ± 1.333
Average   10.64 ± 0.557
 

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