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Thioglycollate Medium

tube of, ready-to-use, tube volume 9 mL , filling volume

Fluid Thioglycollate Medium, Thioglycollate Broth, FTM


EP 2.6.1
JP 4.06
USP 71

Quality Level


For the isolation and cultivation of fastidious anaerobic and aerobic microorganisms


sterile; autoclaved


liquid (ready-to-use)

shelf life

6 mo.


closure type screw cap with septum


single packed of (9 ml in 17 ml tube with red cap (100 tubes per box))
tube of

tube capacity

17 mL

tube volume

9 mL , filling volume




sterility testing


for use with Steritest® Symbio FLEX Pump Kit, 2 media (SYMBFLE01)
for use with Steritest® Symbio ISL Pump Kit, 2 media (SYMBISL01)
for use with Steritest® Symbio LFH Pump Kit (SYMBLFH01)

storage temp.



nonselective for

General description

Fluid Thioglycolate Medium is a universal complex medium. It is recommended for sterility testing of pharmaceutical products according to the European and US Pharmacopoeia. Thioglycolate and L-Cystine in the medium reduce the redox potential of the culture medium to create an anaerobic atmosphere. Also, mercury and other heavy metal compounds are inactivated by these agents. The content of agar further reduces a rapid diffusion of oxygen through the medium but may lead to slight turbidity in larger volumes (filled bottles). Resazurin indicates the reduction potential of the medium. An increased concentration of oxygen is indicated by a color change to pink.


Fluid Thioglycolate Medium is used for the isolation and cultivation of fastidious anaerobic as well as for aerobic microorganisms. This is used for sterility control of pharmaceutical products.

Features and Benefits

Our ready to use media provide the highest level of quality and testing confidence. They have been formulated and tested to meet the pharmacopoeia requirements. Sterility testing media and rinse solutions are manufactured in an ISO 9001, environmentally controlled production center. Each lot undergoes a stringent quality control (QC) procedure, including pH, sterility and growth promotion tests. Our manufacturing approach ensures the highest level of clarity for our media and rinsing fluids, therefore improving accuracy and significantly reducing the risk of incorrect interpretation and false results.

Legal Information

STERITEST is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

10 - Combustible liquids



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Sterility Testing by Direct Inoculation

Direct inoculation of culture media is the method of choice for sterility testing of non-filterable samples. Select from our range of sterility testing media including soybean casein digest medium (TSB), and Fluid Thioglycollate medium (FTM standard and clear).

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

Contact Technical Service