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Specification:98%

CAS NO.21293-29-8

EINECS NO.244-319-5

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 under sunlight.
Chemical structural formula
 Plant hormone Abscisic acid S-ABA
Toxicology:LD50: mammal, ip; >1500 mg/kg

Physiological 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 defense.