Study Attribute | Value |
---|---|
CEBS Accession Number: | 002-01432-0017-0000-0 |
Chemical Name: | 3-Chloro-2-methylpropene |
CASRN: | 563-47-3 |
NTP Study Type: | Genetic Toxicology - Rodent Cytogenetics |
NTP Study ID: | 876278_CA |
Study Result: | Negative |
Below are the detailed Chromosome Abberation data. You may also view the summary data for this study.
Initial Treatment Date | Tissue | Sample Time (h) | Sex | Species | Strain | Protocol | Result |
---|---|---|---|---|---|---|---|
12/02/1991 | Bone Marrow | 17 | Male | Mouse | B6C3F1 | Intraperitoneal Injection x 1/study, 17 hour | Negative |
Dose (mg/kg) |
Animal Number |
No. Cells |
Chromatid | Isochromatid | Exchanges | Aberrations | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Breaks | Gaps | Breaks | Gaps | 'Tid | 'Some | Other | Total | Per Cell | % Cells w/ Abs | |||||||
(+ Gaps) | (- Gaps) | (+ Gaps) | (- Gaps) | |||||||||||||
Positive Control | Dimethylbenzanthracene |
50 |
12530 | 50 | 2 | 2 | 0 | 1 | 0 | 0 | 0 | 5 | 0.10 | 0.04 | 8.00 | 4.00 |
12531 | 50 | 6 | 1 | 0 | 0 | 0 | 0 | 0 | 7 | 0.14 | 0.12 | 10.00 | 10.00 | |||
12532 | 50 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 3 | 0.06 | 0.02 | 6.00 | 2.00 | |||
12533 | 50 | 7 | 2 | 0 | 0 | 0 | 0 | 0 | 9 | 0.18 | 0.14 | 18.00 | 14.00 | |||
12534 | 50 | 8 | 3 | 0 | 0 | 0 | 0 | 0 | 11 | 0.22 | 0.16 | 20.00 | 16.00 | |||
12535 | 50 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 0.04 | 0.02 | 4.00 | 2.00 | |||
12536 | 50 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0.08 | 0.08 | 6.00 | 6.00 | |||
Average | 4.1 | 1.6 | 0.0 | 0.1 | 0.0 | 0.0 | 0.0 | 5.9 | 0.12 | 0.08 | 10.29 | 7.71 | ||||
± SEM | 0.02 | 0.02 | 2.37 | 2.16 | ||||||||||||
Test Chemical | 3-Chloro-2-methylpropene |
62.5 |
12460 | 50 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0.04 | 0.04 | 2.00 | 2.00 |
12461 | 50 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.02 | 0.02 | 2.00 | 2.00 | |||
12462 | 50 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 0.06 | 0.04 | 4.00 | 4.00 | |||
12463 | 50 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0.04 | 0.04 | 4.00 | 4.00 | |||
12464 | 50 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.02 | 0.02 | 2.00 | 2.00 | |||
12465 | 50 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | |||
12466 | 50 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 0.04 | 0.00 | 4.00 | 0.00 | |||
12467 | 50 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 4 | 0.08 | 0.04 | 6.00 | 4.00 | |||
Average | 1.3 | 0.6 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.9 | 0.04 | 0.03 | 3.00 | 2.25 | ||||
± SEM | 0.01 | 0.01 | 0.65 | 0.59 | ||||||||||||
Test Chemical | 3-Chloro-2-methylpropene |
125 |
12470 | 50 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.02 | 0.02 | 2.00 | 2.00 |
12471 | 50 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | |||
12472 | 50 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0.02 | 0.00 | 2.00 | 0.00 | |||
12473 | 50 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.02 | 0.02 | 2.00 | 2.00 | |||
12474 | 50 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | |||
12475 | 50 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | |||
12476 | 50 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | |||
12477 | 50 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | |||
Average | 0.3 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.4 | 0.01 | 0.01 | 0.75 | 0.50 | ||||
± SEM | 0.00 | 0.00 | 0.37 | 0.33 | ||||||||||||
Test Chemical | 3-Chloro-2-methylpropene |
250 |
12480 | 50 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0.02 | 0.00 | 2.00 | 0.00 |
12481 | 50 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.02 | 0.02 | 2.00 | 2.00 | |||
12482 | 50 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0.04 | 0.04 | 4.00 | 4.00 | |||
12483 | 50 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | |||
12484 | 50 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.02 | 0.02 | 2.00 | 2.00 | |||
12485 | 50 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | |||
12486 | 50 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0.02 | 0.00 | 2.00 | 0.00 | |||
12488 | 50 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | |||
Average | 0.5 | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.8 | 0.02 | 0.01 | 1.50 | 1.00 | ||||
± SEM | 0.01 | 0.01 | 0.50 | 0.53 | ||||||||||||
Vehicle Control | No Stressor |
0 |
12520 | 50 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 |
12521 | 50 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | |||
12522 | 50 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0.04 | 0.04 | 4.00 | 4.00 | |||
12523 | 50 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.02 | 0.02 | 2.00 | 2.00 | |||
12524 | 50 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0.02 | 0.00 | 2.00 | 0.00 | |||
12527 | 50 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.02 | 0.02 | 2.00 | 2.00 | |||
12528 | 50 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | |||
12529 | 50 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | |||
Average | 0.5 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.6 | 0.01 | 0.01 | 1.25 | 1.00 | ||||
± SEM | 0.01 | 0.01 | 0.53 | 0.53 | ||||||||||||
CRO: Corn Oil
DMBA: Dimethylbenzanthracene
IP/IJ: Intraperitoneal injection
INHAL: Inhalation