3-MBCF, 3-methoxy butyl chloroformate; 3-Methoxybutyl chloroformate; ANOVA, analysis of variance; CT, computed tomography; EDTA, ethylenediamine tetraacetic acid; GHS, Globally Harmonized System of Classification and Labelling of Chemicals; GLP, Good Laboratory Practice; HCT, hematocrit; HGB, hemoglobin concentration; Inhalation toxicity; MCH, mean corpuscular hemoglobin; MCHC, mean corpuscular hemoglobin concentration; MCV, mean corpuscular volume; MNPCE, micronucleated polychromatic erythrocytes; MOE, The Ministry of Environment; NCE, normochromatic erythrocytes; NOAEL, no observed adverse effect level; OECD, Organization for Economic Cooperation and Development; PCE, polychromatic erythrocytes; PLT, platelets; RBC, red blood cell counts; RDW, red cell distribution width; REACH, Registration, Evaluation, Authorization and Restriction of Chemicals; SD, Sprague-Dawley; SPF, specific-pathogen-free; Sprague Dawley rats; WBC, white blood cell counts; occupational hazard