G7645 Sigma

Gibberellic acid

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

Synonym: GA3, Gibberellin A3

  • CAS Number 77-06-5

  • Empirical Formula (Hill Notation) C19H22O6

  • Molecular Weight 346.37

  •  Beilstein Registry Number 54346

  •  EC Number 201-001-0

  •  MDL number MFCD00079329

  •  PubChem Substance ID 24895317

  • Popular Documents:  FTNMR (PDF)  



Related Categories Allium sativum (Garlic), Cell Biology, Miscellaneous Plant Growth Regulators, Molecular Biology, Nutrition Research,
product line   BioReagent
assay   ≥90% gibberellin A3 basis (of total gibberellins.)
suitability   plant cell culture tested
Featured Industry   Agriculture


Frequently Asked Questions

Frequently Asked Questions are available for this Product.

General description

Gibberellic acid is an endogenous plant growth regulator


1 g in glass bottle

Preparation Note

Preparation and Use


Gibberillic acids (GA) are important plant growth hormones that promote plant cell growth and elongation. Gebberillins 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, tensioning and floral display.
Gibberellin A3 (G1025, G7645) and A4 (G7276) may be used as supplements to plant growth media such as Murashige and Skoog media. The specific actions of A3 and A4 or combinations of Gebberellins should be determined in specific plant applications.

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.

Price and Availability

Suggested Laboratory Gloves

Laboratory GlovesThis substance has been tested against several types of hand protection for CE compliance. Click below to find the recommended gloves for handling this product.

All labs need water
Safety & Documentation

Safety Information

Personal Protective Equipment 
NONH for all modes of transport
WGK Germany 
Protocols & Articles


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