M2 medium

With HEPES, without penicillin and streptomycin, liquid, sterile-filtered, suitable for mouse embryo cell culture

MDL number:

Quality Level





storage condition

protect from light


cell culture | embryo: suitable


endotoxin, tested


phenol red: 0.0106 g/L
sodium pyruvate: 0.0363 g/L
HEPES: 5.42726 g/L
glucose: 1.0 g/L (Dextro)
NaHCO3: 0.35 g/L

shipped in


storage temp.


Looking for similar products? Visit Product Comparison Guide


Recommended for manipulation of mouse embryos at ambient temperature. M2 and M16 Medium are common media for in vitro culture of preimplantation stage embryos. It is a modified Krebs-Ringer bicarbonate solution, which is very similar to Whitten′s Medium. M16 contains pyruvate and lactate as energy sources since preimplantation embryos do not utilize glucose efficiently.

M2 Medium is a further modification of M16 that substitutes HEPES buffer in place of some of the bicarbonate. M2 is used for collecting and handling embryos for prolonged periods outside a CO2 incubator.


Presence of particulates in solution will not affect product′s performance.


Supplement with 0.06 g/L potassium penicillin-G and 0.05 g/L streptomycin sulfate.

Analysis Note

This product is tested for its ability to support the development of one-cell mouse embryos to expanded blastocysts. Minimum requirement is 80% development to blastocyst.


NONH for all modes of transport

WGK Germany


Flash Point F

Not applicable

Flash Point C

Not applicable

Certificate of Analysis

Certificate of Origin

Hongzheng Sun et al.
Biology of reproduction, 100(3), 601-617 (2018-09-29)
Methionine adenosyltransferase II (MAT2A) is essential to the synthesis of S-adenosylmethionine, a major methyl donor, from L-methionine and ATP. Upon fertilization, zygotic genome activation (ZGA) marks the period that transforms the genome from transcriptional quiescence to robust transcriptional activity. During...
Sarah E M Stephenson et al.
Scientific reports, 8(1), 7528-7528 (2018-05-16)
Mutations in PARK2 (parkin) can result in Parkinson's disease (PD). Parkin shares a bidirectional promoter with parkin coregulated gene (PACRG) and the transcriptional start sites are separated by only ~200 bp. Bidirectionally regulated genes have been shown to function in common...
Yixin Xu et al.
Gene expression patterns : GEP, 25-26, 46-58 (2017-06-07)
Cumulus cells (CCs) are considered as an important source to predict oocyte quality. Despite numerous candidate genes in CCs have been identified for embryonic developmental competence, the results are inconsistent. The next generation RNA-sequencing was used to investigate the transcriptomic...
Jiangwei Lin et al.
Scientific reports, 6, 39457-39457 (2016-12-20)
Various types of stem cell lines have been derived from preimplantation or postimplantation mouse embryos: embryonic stem cell lines, epiblast stem cell lines, and trophoblast stem cell lines. It is not known if extraembryonic endoderm stem (XEN) cell lines can...
Yi-Wen Xu et al.
Journal of cell science, 130(19), 3297-3307 (2017-08-19)
Precise regulation of DNA replication and genome integrity is crucial for gametogenesis and early embryogenesis. Cullin ring-finger ubiquitin ligase 4 (CRL4) has multiple functions in the maintenance of germ cell survival, oocyte meiotic maturation, and maternal-zygotic transition in mammals. DDB1-cullin-4-associated...
Mouse embryo media and embryo validated reagents for transgenic mouse embryo culture
Read More
Creating Transgenic Mice using CRISPR-Cas9 Genome Editing
Read More

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