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microbiology tested, suitable for plant cell culture, suitable for cell culture, powder

Agar-agar, Gum agar
Linear Formula:
CAS Number:
EC Number:
MDL number:

Quality Level

biological source

algae (Rhodophyceae)




cell culture | mammalian: suitable
cell culture | plant: suitable
microbiology: suitable

transition temp

congealing temperature <38 °C (1.5% in H2O)


microbiology tested

Featured Industry


storage temp.

room temp

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General description

Agar is a hydrophilic colloid obtained from marine algae (Rhodophyceae). It is soluble in boiling water and is of significance to the microbiological area.
Agar chemically consists of two fractions: agarose, a neutral polymer of high gel strength and agaropectin, a non-gelling fraction with sulfated β-1,3-glycosidically linked D-galactose units.


Agar has been used:
  • as a reference standard commercial agar to compare the physio-chemical, gelling properties of alkali-treated agar from Gracilaria tenuistipitata
  • as a component in the seed germination medium and rooting medium for commercially available soybean (Glycine max (L.) Merr) seeds
  • as a component of growth media for B. subtilis mutant strain MTC871 based biofilm colonies
  • as a bacteriological agar component to prepare half strength Murashige-Skoog (MS 50%) medium for Echinocactus platycanthus seeds culture

Agar has been used in the plant growth media.
Typical working concentration: 6-12g/L.


5, 10, 25 kg in poly drum
1 kg in poly bottle
100, 500 g in poly bottle

Biochem/physiol Actions

Agar is gel forming polysaccharide used as a gelling and stabilizing agent. Its serves as a cryoprotectant in processed foods, pharmaceuticals and cosmetics products.

Other Notes

General purpose agar.

Storage Class Code

11 - Combustible Solids

WGK Germany


Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

Kensuke Kawade et al.
Cell reports, 32(10), 108127-108127 (2020-09-10)
Shoot formation is accompanied by active cell proliferation and expansion, requiring that metabolic state adapts to developmental control. Despite the importance of such metabolic reprogramming, it remains unclear how development and metabolism are integrated. Here, we show that disruption of...
Floral dip: a simplified method for Agrobacterium-mediated transformation of Arabidopsis thaliana.
Clough SJ and Bent AF
The Plant Journal, 16, 735-743 (1998)
Ghulam Raza et al.
BioMed research international, 2017, 7379693-7379693 (2017-07-12)
Soybean, a major legume crop, is the source of vegetable oil and protein. There is a need for transgenic approaches to breeding superior soybean varieties to meet future climate challenges. Efficient plant regeneration is a prerequisite for successful application of...
Plant regeneration from callus derived from immature embryo cotyledons of Prunus mume.
Ning GG and Bao MZ
Hortscience: a Publication of the American Society For Horticultural Science Hortscience, 42, 744-747 (2007)
Mineko Konishi et al.
BMC plant biology, 19(1), 90-90 (2019-03-02)
NIN-LIKE PROTEIN (NLP) transcription factors are master regulators of nitrate-inducible gene expression in higher plants. NLP transcription factors contain a nitrate signal-responsive domain in the amino-terminal region, an RWP-RK-type DNA-binding domain in the middle, and a Phox and Bem1 (PB1)...

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