It is a plant growth regulator developed on the base of A_３. It can change the lengthwise(L) and diameter(D) by elonggating apples' lengthways. Then it can change fruit type figures, increase inner hormone, and increase output by 10-20%.As a result, the apple has five more protractive arrises, better flavor, longer storage term. Now it has great potentialities in domestic and international market, then it is notable in public results.

Name: ISO
Common name: Gibberellin (A₄₊₇). Trade name: Fruit juice, 3.8%G(A₄₊₇)·Purine EC.
Molecular formula and Molecular weight:
GA4:C₁₉H₂₄O₅ 332.29
GA7:C₁₉H₂₂O₅ 330.37
6-Benzylaminopurine:C₁₉H₂₄O₅ 225.26
Assay: GA₄₊₇≥1.9%,
6-Benzylaminopurine≥1.9%.
Description: It is a colorless, stabile, even liquid. No visible suspended things and sediments. GA₄:melting point is between 214-215℃. GA₇:acicular melting point is between 169-172℃ manyedges'crystalmeltingpointis202℃(meanwhile dissolved).6-Benzylaminopurinemelting point is 235.5℃
Stability: Gibberellin (A₄₊₇) is stabile in dry state and acid solution. It can easily resolve: when basic is added. 6-Benzylaminopurine is easy to be derived into N-9-Ben in acid solution.
Toxicity: LD₅₀>5,000mg/kgb.W, no carcinogenic, tertogenic, mutagenic effect.
Package: Comply with the relative regulations in GB4838-2000. 10ml/20ml per plastic bottle.
Storage: Store in ventilative, cool and dry place.
Expiry date: 2 years.