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Gibberellic acid

BioReagent, suitable for plant cell culture, ≥90% gibberellin A3 basis (of total gibberellins.)

GA3, Gibberellin A3
Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
EC Number:
MDL number:
PubChem Substance ID:

Quality Level

product line



≥90% gibberellin A3 basis (of total gibberellins.)


cell culture | plant: suitable

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General description

Gibberellic acid is a tetracyclic diterpenoid compound, which is synthesized by terpenoid pathway in chloroplasts, cytoplasm, plastid, and endoplasmic reticulum.
Gibberellic acid is an endogenous plant growth regulator


Gibberellic acid has been used as a supplement in Murashige and Skoog media (MS) for treating young leaves of hybrid poplar to follow MYB transcription factor PtrMYB012 expression and in vitro peas seed germination. It has also been used in gibberellic acid (GA)-sensitivity assay in wheat seeds and to promote seed germination in Arabidopsis seeds.
The specific actions of Gibberellin A3 (G1025, G7645) and A4 (G7276) or combinations of Gibberellins should be determined in specific plant applications.


1 g in glass bottle

Biochem/physiol Actions

Phytohormone that controls important aspects of plant growth: germination, elongation, and flowering. The effects are mediated by inducing degradation of the DELLA repressor protein, and probably other minor signalling pathways.
Gibberellic acids (GA) are important plant growth hormones that promote plant cell growth and elongation. Gibberellins promote rapid stem and root growth, induce mitotic division and initiate (break dormancy) and increase seed germination rates. The gibberellins are also involved in processes such as gravitropism and flowering.

Preparation Note

Storage Class Code

11 - Combustible Solids

WGK Germany


Flash Point F

Not applicable

Flash Point C

Not applicable

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

  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 solubilize Gibberellic acid, Product G7645?

    Gibberellic acid is tested for solubility in ethanol (50 mg/ml), yielding a clear, colorless to faint yellow solution.   This may require heating in a water bath for complete solubility.

  4. How is the purity of Gibberellic acid, Product G7645, determined?

    We measure purity by Thin Layer Chromatography, not by HPLC.

  5. How would you recommend that I store a solution of Gibberellic acid, Product G7645?

    This product can be initially dissolved in ethanol, diluted with water and stored at 2-8° C.

  6. Can solutions of Gibberellic acid, Product G7645, be sterilized?

    Yes. Sterilization can be either by filter sterilization or coautoclaving with other media components.

  7. What concentration of Gibberellic acid, Product G7645, should I use with my plant culture?

    Gibberellic acid is used at 0.01 - 5.0 mg/L.

  8. 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.

  9. 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. 

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

    Ask a Scientist here.

Gibberellic acid in plant: still a mystery unresolved
Gupta R and Chakrabarty, SK
Plant signaling & behavior, 8(9), e25504-e25504 (2013)
Poplar MYB transcription factor PtrMYB012 and its Arabidopsis AtGAMYB orthologs are differentially repressed by the Arabidopsis miR159 family
Kim MH, et al.
Tree physiology, 38(6), 801-812 (2017)
Asymmetric gibberellin signaling regulates vacuolar trafficking of PIN auxin transporters during root gravitropism
Lofke C, et al.
Proceedings of the National Academy of Sciences of the USA, 110, 3627-3632 (2013)
Gibberellic acid production by different fermentation systems using citric pulp as substrate/support
de Oliveira J, et al.
BioMed Research International, 2017 (2017)
Expression patterns of key hormones related to pea (Pisum sativum L.) embryo physiological maturity shift in response to accelerated growth conditions
Ribalta FM, et al.
Frontiers in Plant Science, 10 (2019)

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