CAS No. 21293-29-8

Batch: Purity:99.91
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Abscisic Acid (Dormin) Chemical Structure
Chemical Structure
Check the Abscisic Acid (Dormin) product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name (2Z,4E)-5-[(1S)-1-hydroxy-2,6,6-trimethyl-4-oxocyclohex-2-en-1-yl]-3-methylpenta-2,4-dienoic acid
CAS Number 21293-29-8
Molecular Formula

C15H20O4
Molecular Weight (MW) 264.32
SMILES CC1=CC(=O)CC(C1(C=CC(=CC(=O)O)C)O)(C)C
InChIKey JLIDBLDQVAYHNE-YKALOCIXSA-N

Ordering Information

Biological Activity

Abscisic Acid (Dormin) is an essential plant hormone and signaling molecule that targets PYR/PYL/RCAR family receptors to regulate plant developmental processes. Upon binding to PYR/PYL receptors, Abscisic Acid inhibits clade A type 2C protein phosphatases (PP2Cs), triggering downstream SnRK2 kinase activation. This signaling cascade modulates ion homeostasis, stress-responsive gene expression, stomatal closure, metabolism, and inhibition of seed germination and seedling growth. [1][2]

How to Prepare Stock Solution?

Concentration Volume Mass
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Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
FAQ
Q: Why does a DMSO stock precipitate in media/saline?
A: It is caused by unheated aqueous media (supersaturation), local solvent shock, or incorrect mixing sequence.
How to fix it?
  • Preheat media/saline to 37°C.
  • Mix rapidly (pipette/vortex) upon addition.
  • For complex mixes, always add the aqueous phase last.
  • Re-dissolve minor precipitates with a 37°C water bath and sonication (≤30 min).

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Note: Technical data last updated: Sep 1, 2026.