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Tunicamycin from Streptomyces sp.

CAS Number:
MDL number:
PubChem Substance ID:

Quality Level


95% ethanol: soluble 1 mg/mL, clear to faintly hazy
THF: soluble <1 mg/mL
dioxane: soluble <1 mg/mL
DMF: soluble >10 mg/mL
pyridine: >10 mg/mL
DMSO: soluble 4.9-5.1 mg/mL, clear to slightly hazy, colorless to yellow
methanol: slightly soluble 4.9-5.1 mg/mL
methanol: soluble 4.9-5.1 mg/mL, clear to slightly hazy, colorless to yellow
acetone: insoluble
aqueous base: insoluble
chloroform: insoluble
ethyl acetate: insoluble

Mode of action

protein synthesis | interferes

antibiotic activity spectrum


storage temp.


SMILES string




InChI key


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General description

Chemical structure: nucleoside
Contains homologues A,B,C, and D. Composition may vary from lot to lot. Actual content given on label.


Tunicamycin has been used to study the effect of N-linked glycosylation of human proton-coupled folate transporter (HsPCFT) in HeLa cells. Tunicamycin has also been used to study the functional effects of coxsackievirus and adenovirus receptor (CAR) glycosylation in COS-7 cells.


1, 5, 10, 50 mg in glass bottle

Biochem/physiol Actions

Antibacterial and antifungal. Blocks the formation of protein N-glycosidic linkages by inhibiting the transfer of N-acetylglucosamine 1-phosphate to dolichol monophosphate. Inhibits bacterial and eukaryote N-acetylglucosamine transferases and prevents formation of N-acetylglucosamine lipid intermediates.

Preparation Note

Tunicamycin dissolves in DMSO at 4.9-5.1 mg/ml and yields a clear to very slightly hazy, colorless to yellow solution. Furthermore, tunicamycin is soluble in DMF (>10 mg/ml), pyridine (>10 mg/ml), water (<5 mg/ml, pH 9.0), dioxane (<1 mg/ml) and THF. However, it is insoluble in other organic solvents such as acetone, chloroform, and ethyl acetate, and in aqueous solutions with pH <6. Aqueous solutions can be prepared from stock solutions by diluting with water at pH 8-10 or with buffers with pH >7, preferably >8. Tunicamycin will not dissolve in phosphate buffer, pH 8, at 1 mg/ml, even with heating, but solubility can be achieved by raising the pH to 9 and back titrating to pH 7-8.


Skull and crossbones

Signal Word


Hazard Statements

Hazard Classifications

Acute Tox. 1 Oral

Storage Class Code

6.1A - Combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Certificate of Origin

Product Information Sheet

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