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Gibberellic Acid, GA3
Gibberellin A4+7
Ethephon
3-IBA
Thidiazuron
 
 
 
 
 
 

Gibberellic acid, GA3

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(CAS#: 77-06-5)

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Chemical Name: (3S,3aS ,4S,4aS,7S,9aR,12S)-7,12-dihydroxy-3-methyl-6-methyllene-2-oxoperhydro-4a,7-methano-9b,3-propeno[1,2-b]furan-4-carboxylic acid (IUPAC)

Other Name: Gibberellin A3; Gibberellin; GA3; 2,7-dihydroxy-1-methyl-8-methylene-13-oxo-1,2,4b,5,6,7,8,9,10,10a-decahydro-4a,1-(epoxymethano)-7,9a-methanobenzo[a]azulene-10-carboxylic acid

Physical Properties:

Molecular Formula: C19H22O6

Molecular Weight: 346.38

Structure:

Physical and Chemical Properties

Appearance:White crystals

Melting point: 233-235 ˇăC

Loss on drying: < 1.0 %

Residue on ignition: < 0.1 %

Toxicology:

Acute oral LD50 for rat and mouse > 1500mg/kg. Non-irritating to skin and eyes. Inhalation LC50 : No adverse effect on rats subjected to 400mg/1 exposure, 2 h/d for 21 days. NOEL dose (diet 6d/week, 90d) for rat and dog >1000mg/kg. LC50 for carp(48h) >100ppm,water flea 850 ppm.

Application:

One of the most widely used plant growth regulator in agriculture, forestry and horticulture in China. It has following physiological functions: changing male/female ratio of flowers, inducing monogenetic reproduction, stimulate fruit setting and growing, breaking domance of seeds and accelerating germination, promoting stem elongation, and enlarging leaf surface. It can help accumulation of metabolites in phloem, activate cambium, inhibit prematuration and retard aging