Product Name:Abscisic acid S-ABA
Physical and Chemical Properties
Molecular formula: C15H20O4
Molecular weight: 364.32
Melting point: 160-162 deg C
Boiling point: 458.7 deg C
Appearance: Colorless crystals
Density: 1.193 g/mL
Solubility: In water 3-5g/L(20℃); Soluble in ethanol.
Stability: Stable under room temperature for 2 years; degradable
Chemical structural formula
Plant hormone Abscisic acid S-ABA
Toxicology:LD50: mammal, ip; >1500 mg/kgPhysiological actions of
Plant hormone Abscisic Acid S-ABAStimulates the closure of stomata
(water stress brings about an increase in S-ABA synthesis).Inhibits
shoot growth but will not have as much affect on roots or may even
promote growth of roots.
Induces seeds to synthesize storage proteins.
Inhibits the affect of gibberellins.
Has effect on induction and maintenance of dormancy.
Induces gene transcription especially for proteinase inhibitors in
response to wounding which may explain an apparent role in pathogen