赤霉素
Molecular formula and Molecular weight: C₁₉H₂₂O₆ 346.37

Assay: TECH is divided into high-grade products (GA₃≥90%),  First-grade products (GA₃≥80%), Up to grade (GA₃≥75%). EC≥4000μg/mL.
Description: TECH is white and yellowish crystal powder. Melting point is between 223-225.  It is soluble in organic solvents such as alcohols, acetone, ethyl acetate and buffer solution of pH6.2 Phosphoric acid.  Solvency in water is 5g/L. EC is a brown transparent clear liquid, which is easy flammable, and soluble in water.
Stability: The product is quite stable in dry state and acid solution. It can easily resolve when basic is added.
Toxicity: Ld₅₀ of intravenous injection for rats is 6.3g/kg. No carcinogenic, tertogenic, mutagenic effect.
Package: TECH: 1g per plastic bags, 50 bags per carton, 40 cartons each box.
EC: 1g (25ml) or 4g (100ml) per plastic bottle, 100 bottles each box.. Export or big package according to customers’ demand.
Storage: Store in below 50, dry place and shelter from light. Avoid mixing with basic material while using gibberellins. EC should be far away from the fire.
Expiry date: 2years.