Skip to Content
Merck
CN
All Photos(1)

Key Documents

View All Documentation

Y2377

Sigma-Aldrich

2x YT medium

Powder microbial growth medium

Synonym(s):

2x Yeast Extract Tryptone medium, 2xTY medium, 2xYT Medium, 2xYT media

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

UNSPSC Code:
41106225
NACRES:
NA.85

grade

for molecular biology

Quality Level

200

sterility

non-sterile

form

powder

technique(s)

microbiological culture: suitable

pH

6.8-7.2(3.1% solution)

application(s)

food and beverages
microbiology

storage temp.

room temp

suitability

nonselective for Escherichia coli
nonselective for coliforms

General description

2xYT (2x Yeast Extract Tryptone medium) is a standard microbial growth medium used for the cultivation of E. coli and M13 bacteriophage. This nutrient-rich microbial broth contains peptides, amino acids, and water-soluble vitamins in a low-salt formulation.

Application

2x YT medium has been used for culturing E. coli BL21 for cloning , E. coli SS320 cells for scaffold synthesis , and NEB 5-alpha competent E. coli cells for protospacer adjacent motif (PAM) binding assays. It has also been used in the culturing of Agrobacterium tumefaciens and E. coli DH10B.

Features and Benefits

2xYT powder provides:
  • Standard formulation
  • An inexpensive alternative to liquid

Components

16 g/L Tryptone
10 g/L Yeast Extract
5 g/L NaCl

Preparation Note

1. Stir to suspend 31 g of 2xYT Microbial Medium Powder in 1 L of water.
2. Heat to boiling while stirring to dissolve all ingredients completely.
3. Autoclave for 15 minutes at 121 °C.

Reconstitution

Add 31 g powder in 1L water. Heat to boiling while stirring to dissolve powder. Autoclave for 15 minutes at 121°C to sterilize. Allow to cool before making additions, such as antibiotics (if desired).

related product

Product No.
Description
Pricing

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
0000344677
0000343368
0000316945
0000337264
0000311196

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  4. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  5. What is the difference among the 2x YT Media products?

    2x YT Media is available in liquid (Y1003), powder (Y2377) and EZMix™ powder formats (Y2627).

  6. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

Designed active-site library reveals thousands of functional GFP variants
Weinstein J Y. et al.
Nature Communications (2023)
Basem Al-Shayeb et al.
Cell, 185(24), 4574-4586 (2022-11-25)
CRISPR-Cas systems are host-encoded pathways that protect microbes from viral infection using an adaptive RNA-guided mechanism. Using genome-resolved metagenomics, we find that CRISPR systems are also encoded in diverse bacteriophages, where they occur as divergent and hypercompact anti-viral systems. Bacteriophage-encoded
Telomere-mediated Chromosomal Truncation via Agrobacterium tumefaciens or Particle Bombardment to Produce Engineered Minichromosomes in Plants
Graham ND, et al.
Bio-protocol, 5(18) (2015)
Rebecca R Du et al.
ACS nano, 16(12), 20340-20352 (2022-12-03)
Three-dimensional wireframe DNA origami have programmable structural and sequence features that render them potentially suitable for prophylactic and therapeutic applications. However, their innate immunological properties, which stem from parameters including geometric shape and cytosine-phosphate-guanine dinucleotide (CpG) content, remain largely unknown.
Bacterial artificial chromosomes: A functional genomics tool for the study of positive-strand RNA viruses
Yun SI, et al.
Journal of Visualized Experiments, 106, e53164-e53164 (2015)

Protocols

Microbial Growth Protocols

General protocols for growth of competent cells in microbial medium.

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