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Ancymidol TC and WG | 12771-68-5

Ancymidol controls plant height by inhibiting gibberellin biosynthesis. It suppresses cell elongation and apical dominance, resulting in compact plant shapes, shorter internodes, deeper green leaves, and an increased root-to-shoot ratio. Perfect for plant growth regulation.
CAS Number: 12771-68-5
Main Formulations: 99.7% Ancymidol technical grade; 0.0264% Ancymidol water-dispersible granules (WG)

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Common Name: Ancymidol
Trade Names: A-Rest
Chemical Name: α-cyclopropyl-α-(pyrimidin-5-yl)-4-methoxybenzyl alcohol
CAS Number: 12771-68-5
Molecular Formula: C15H16N2O2
Molecular Weight: 256.30
Physicochemical Properties:
Pure product is a white powder; melting point 110–111°C; density 1.259 g/cm³; flash point 221.2°C. Sparingly soluble in water; soluble in ethanol, ethyl acetate, chloroform, and acetonitrile; highly soluble in methanol (>250 g/L) and acetone. Stable in aqueous solutions at pH 7–11 but readily decomposes in acidic and strongly alkaline media; stable under UV light and at 52°C.
Toxicity: Low toxicity
Main Formulations: 99.7% Ancymidol technical grade; 0.0264% Ancymidol water-dispersible granules (WG)
Functional Characteristics:
Ancymidol functions primarily by inhibiting gibberellic acid biosynthesis. It inhibits cell elongation, thereby suppressing apical bud growth and controlling both vertical and lateral plant development. It shortens internodes, resulting in a compact plant habit, darker leaf color, and reduced leaf area. Additionally, it promotes chlorophyll synthesis, prevents excessive vegetative growth, and improves the root-to-shoot ratio.


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