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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

antibiotic activity spectrum


Mode of action

protein synthesis | interferes

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

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Certificate of Origin

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Product Information Sheet

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Quotes and Ordering


Inhibition of Cell Wall Biosynthesis by Antibiotics

Inhibition of Cell Wall Biosynthesis by Antibiotics

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