66-81-9

Colorless crystals. Used as a fungicide and as a anticancer drug.

CYCLOHEXIMIDE(66-81-9) is an imide. This chemical is incompatible with strong oxidizing agents, acid chlorides and acid anhydrides. CYCLOHEXIMIDE(66-81-9) decomposes rapidly in alkali at room temperature.

Water soluble.

This material is extremely toxic; the probable oral lethal dose in humans is 5-50 mg/kg, or 7 drops to 1 teaspoonful for a 150-lb. person.

A potential danger to those involved in the manufacture, formulation, or application of this fun- gicide and pesticide. Used as an antibiotic, plant growth regulator, and protein synthesis inhibitor. Used on oranges for processing and to inhibit growth of many pathogenic plant fungi. Also used as a repellent for rodents and other animal pests; and in cancer therapy.

When exposed to heat, CYCLOHEXIMIDE emits toxic fumes, including nitrogen oxides.

If this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, includ- ing resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a Medical facility. When this chemical has been swallowed, get medi- cal attention. Give large quantities of water and induce vomiting. Do not make an unconscious person vomit. Medical observation is recommended for 24 to 48 hours following skin contact.

Incompatible with oxidizers, acid anhy- drides; strong bases.

Cycloheximide is a glutarimide antibiotic produced by S. griseus that inhibits protein synthesis in eukaryotes (IC₅₀ = 5-50 μM) by interfering with translational elongation. Its effects on protein synthesis can either induce or inhibit apoptosis depending on cell type. Cycloheximide is widely used as a tool in molecular biology research for ribosome profiling and translational profiling as well as to determine the half-life of a protein.

Cycloheximide is a glutarimide-type antibiotic produced by Streptomyces griseus. Colorless crystals, C15H23NO4 (281.4), melting point: 115.5–117 ?C, weak acidic substance (pKa 11.2), Soluble in chloroform, isopropanol and methanol; water > 21 g/L (2 ?C). Stable in pH 3–5, but rapidly destroyed in alkaline solutions.

Cycloheximide is a colorless crystalline sub- stance.

Off-white to light tan powder

High-temperature incinerator with flue gas scrubbing equipment.

Cycloheximide is an antibiotic substance isolated from the beers of streptomycin-producing strains of Streptomyces griseus. Cycloheximide is used as fungicide.

Cycloheximide is the most recognised member of the glutarimide microbial metabolites. Cycloheximide was isolated from Streptomyces griseus in the late 1940s as a potent and broad spectrum antifungal. Cycloheximide inhibits protein synthesis by interfering with translocation. Cycloheximide is an established bioprobe and widely-used antifungal reagent in research with over 25,000 literature citations.

immunomodulator

immunosuppressant

potent and selective 5-HT uptake inhibitor

ChEBI: Cycloheximide is a dicarboximide that is 4-(2-hydroxyethyl)piperidine-2,6-dione in which one of the hydrogens attached to the carbon bearing the hydroxy group is replaced by a 3,5-dimethyl-2-oxocyclohexyl group. It is an antibiotic produced by the bacterium Streptomyces griseus. It has a role as a bacterial metabolite, a protein synthesis inhibitor, a neuroprotective agent, an anticoronaviral agent and a ferroptosis inhibitor. It is a member of piperidones, a piperidine antibiotic, an antibiotic fungicide, a dicarboximide, a secondary alcohol and a cyclic ketone. It is functionally related to a piperidine-2,6-dione.

Fungicide; plant growth regulator: A U.S. EPA restricted Use Pesticide (RUP). Used as an antibiotic, plant growth regulator, and protein synthesis inhibitor. Inhibits growth of many plant pathogenic fungi. Effective for control of powdery mildew on roses and many other ornamentals, rusts and leaf spots on lawn grasses, and azalea petal blight. Also used as a repellent for rodents and other animal pests and in cancer therapy. Not listed for use in EU countries

ACTI-AID®[C]; ACTIDIONE®[C]; ACTIDIONE® TGF[C]; ACTIDONE®; ACTIDONE® PM; ACTIDONE® TGF; ACTISPRAY; HIZAROCIN®; KAKEN®; NARAMYCIN®; NARAMYCIN A®; NEOCYCLOHEXIMIDE®; U-4527

Selective inhibitor of eukaryotic (over prokaryotic) protein synthesis, blocking tRNA binding and release from ribosomes. Induces apoptosis in a variety of transformed and normal cell lines, including T-cells. Competitively inhibits the PPIase hFKBP12 (K i = 3.4 μ M). Antifungal antibiotic.

Strongly inhibits the growth of pathogenic fungi but no effects on bacterial growth, even at 100 mg/ml. Inhibits protein synthesis by interfering with the translocation step in eukaryotes, but not in prokaryotes. When ingested by animals, the agent causes excitement, tremors, salivation, diarrhea, and melena.

cycloheximide blocks the movement of peptidyl-trna from acceptor site to the donor site on reticulocyte ribosomes. this translocation reaction is dependent on the transfer enzyme, tf-ii, and gtp hydrolysis. cycloheximide has no effect on the ribosome dependent gtpase activity of tf-ii or peptidyl transferase reaction by which peptides on trna in the donor ribosomal site are transferred to an amino acid on trna in the acceptor site [1].

cycloheximide treatment was effective in attenuating rat brain injury within a 6 hr therapeutic window after hypoxia-ischemia in a newborn rat pup model. these data support the possibility that protein synthesis inhibitors, as well as other anti-apoptotic strategies, may have therapeutic utility in hypoxic-ischemic (hi) events of the developing newborn brain even when treatment is delayed for up to 6 hr after the primary asphyxial insult [2].

Cycloheximide is genotoxic in Escherichia coli with metabolic activation and in the mouse sperm morphology assay. Carcinogenicity bioassays in the mouse and rat are inconclusive.

CHX is a potent inhibitor of protein synthesis in animals. It binds to E-site of 70S ribosome-mRNA complex, blocking the translational step of protein biosynthesis. It causes an increase in adrenal RNA and increased production of glucocorticoids.

Rapidly inactivated at room temperature by diluted alkali with the formation of a volatile, fragrant ketone, 2,4- dimethylcyclohexanone. Hazardous to fish and wildlife.

room temperature

It crystallises from H2O /MeOH (4:1), amyl acetate, isopropyl acetate/isopropyl ether or H2O. [Beilstein 21/13 V 434.]

Skin irritant. LD₅₀ 2 mg/kg (rat, orl); 133 mg/kg (mice, Ipr); 65 mg/kg (guinea pig); 60 mg/kg (monkey). Teratogenic effects.
To remove toxicant from gut, activated charcoal and a catharitic dose of sodium sulfate are effective. Mechanisms of toxicity are not well defined, but hydrocortisone is antidotal, particularly in combination with the adrenergic agent methoxyphenamine.

1) Merck 14:2728