• USA Home
  • H9773 - Hygromycin B from Streptomyces hygroscopicus

H9773 Sigma-Aldrich

Hygromycin B from Streptomyces hygroscopicus

suitable for plant cell culture, BioReagent, ≥60% (HPLC), lyophilized powder



Related Categories Aminoglycosides, Antibiotics, Antibiotics A to Z, Antibiotics G-M, Antibiotics and Antimycotics,
Quality Level   200
biological source   Streptomyces hygroscopicus
product line   BioReagent
assay   ≥60% (HPLC)
form   lyophilized powder
purified by   ion-exchange chromatography
application(s)   cell culture | plant: suitable
color   faintly brown to brown
  white to beige
    (1) 7.1, (2) 8.8
solubility   H2O: soluble 50 mg/mL
  ethanol: soluble
  methanol: soluble
Featured Industry   Agriculture
Mode of action   protein synthesis | interferes
antibiotic activity spectrum   fungi
storage temp.   2-8°C
SMILES string   CN[C@H]1C[C@@H](N)[C@H](O)[C@@H](O[C@@H]2O[C@H](CO)[C@H](O)[C@@H]3O[C@]4(O[C@H]([C@H](N)CO)[C@H](O)[C@H](O)[C@H]4O)O[C@H]23)[C@@H]1O
InChI   1S/C20H37N3O13/c1-23-7-2-5(21)9(26)15(10(7)27)33-19-17-16(11(28)8(4-25)32-19)35-20(36-17)18(31)13(30)12(29)14(34-20)6(22)3-24/h5-19,23-31H,2-4,21-22H2,1H3/t5-,6-,7+,8-,9+,10-,11+,12-,13+,14-,15-,16+,17+,18-,19+,20+/m1/s1


General description

Chemical structure: aminoglycoside

Hygromycin B is an antibiotic produced by the bacterium Streptomyces hygroscopicus. It is an aminoglycoside that kills bacteria, fungi and higher eukaryotic cells by inhibiting protein synthesis.


Hygromycin B is an aminoglycoside antibiotic isolated from Streptomyces hygroscopicus. It has been used to study protein synthesis at the level of the 70S ribosome translocation and mRNA template misreading, as an antiviral agent by selectively penetrating cells rendered permeable by virus infection and inhibiting translation, and as a selection agent for hygromycin resistance gene transformed cells. It is recommended for use as a selection agent at 100-800 μg/mL, specifically at 100 μg/mL for prokaryotes, 200 μg/mL for lower eukaryotes and 150-400 μg/mL for higher eukaryotes.

Hygromycin B from Streptomyces hygroscopicus is used for gene cloning and ectopic expression. It is also used in MS medium for the in vitro screening of transgenic plants.

Biochem/physiol Actions

Hygromycin B is used in mutagenesis or for selection of gene expression and complementation constructs in C. jejuni. It is also adopted as a marker in other approaches for manipulating, introducing or deleting DNA in C. elegans. It can be inactivated by Aminoglycoside 4-phosphotransferase-Ia (APH(4)-Ia)/Hygromycin B phosphotransferase (Hph) through phosphorylation. The amino function of this antibiotic may be involved in a general acid-base catalysis performed by the ribozyme, acting as proton acceptors/donors.

Mode of Action: The product acts by inhibiting protein synthesis by inducing the misreading of the m-RNA template in the prokaryote, with the potency to inhibit translation.

Antimicrobial Spectrum: Hygromycin B acts against bacteria, fungi and higher eukaryotic cells.


Hygromycin B products should be stored as supplied at 2-8°C, and the dry solid is table for at least 5 years if stored at 2-8°C. It is stable at 37°C for 30 days. (For solutions) This solution is stable as supplied for two years if stored at 2-8°C.

Preparation Note

This product is purified by ion exchange chromatography. Hygromycin B is soluble in water at concentrations >50 mg/mL, and also soluble in methanol or ethanol. Solutions should be sterilized by filtration, not by autoclaving. Additionally, Hygromycin B solutions have been reported to lose activity on freezing, and since they are stable refrigerated, freezing should be avoided.

Safety & Documentation

Safety Information

GHS06  GHS06
Signal word 
Hazard statements 
UN3462 - class 6.1 - PG 1 - Toxins, extracted from living sources, solid, n.o.s., HI: all (not BR)
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable


Certificate of Analysis (COA)

Please Enter a Lot Number

Certificate of Origin (COO)

Please Enter a Lot Number
Protocols & Articles


Antibiotic Kill Curve

Antibiotic kill curve is a dose response experiment in which mammalian cells are subjected to increasing amounts of selection antibiotic to determine the minimum concentration of an antibiotic that c...
Keywords: Antibiotics, Cell culture, Evaporation, Transfection

Inhibition of Protein Synthesis by Antibiotics

Protein synthesis is a complex, multi-step process involving many enzymes as well as conformational alignment. However, the majority of antibiotics that block bacterial protein synthesis interfere wi...
BioFiles 2006, 1.4, 17.
Keywords: Antibiotics, Environmental, Peptide synthesis


Antibiotics - Plant Tissue Culture Protocol

In general, antibiotics require storage in a refrigerator or freezer. Aminoglycosides (e.g. kanamycin) are hygroscopic and should be stored in a desiccator. Storage of many powdered antibiotics at -2...
Keywords: Adsorption, Antibiotics, Antifungals, Condensations, Molecular biology

Related Content

Antibiotics Selection Guide

The Antibiotic Selection Guide enables researchers to spend more time on their research discoveries and less time seeking established antibiotic information. Link to hundreds of antibiotics for conta...
Keywords: Antibiotics, Cell biology, Cell culture, Genetic, High performance liquid chromatography, Reversed-phase chromatography

Plant Tissue Culture Products | Agriculture

Our combination of quality products, services and global business capabilities help you to maintain reagent consistency while ensuring suitability. Sigma-Aldrich allows you to standardize reagents ac...
Keywords: Antibiotics, Cell culture, Culture media, Gas chromatography, High performance liquid chromatography, Mass spectrometry, Vitamins, transformation

Peer-Reviewed Papers


Related Products

related product

Product #


Add to Cart

08168 Timestrip Plus 8 °C

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?