PGR

GA 3(Gibberellic acid)

Chemical: 赤霉素
Use category: PLANT GROWTH REGULATOR
Content & formulation: ,
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  • Chemistry Identity
  • Technical sheet
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CAS No.】:77-06-5
CAS】:(1α,2β,4aα,4bβ,10β)-2,4a,7-trihydroxy-1-methyl-8-methylenegibb-3-ene-1,10-dicarboxylic acid 1,4a-lactone
Molecular Formula】:C19H22O6

 

Molecular weight】:346.4g/mol; 
Physical form】:Crystalline solid. 
Melting point】:223-225℃( decomp.); 
pKa】:4.0; 
Solubility】:In water 5 g/l (room temperature). Soluble in methanol, ethanol, acetone, and aqueous alkalis; slightly soluble in diethyl ether and ethyl acetate. Insoluble in chloroform. Potassium, sodium, and ammonium salts: Readily soluble in water (potassium salt 50; 
Stability】:Dry gibberellic acid is stable at room temperature, but slowly undergoes hydrolysis in aqueous or aqueous-alcoholic solutions, DT50 (20℃) c. 14 d ( pH 3-4), 14 d ( pH 7)

 

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