Plant Growth Regulators (PGR)
Gibberellin A4+A7 (GA4+7) 90% TC Powder
Gibberellin A4+A7 90% TC grade for formulators; formulate into SL/EC
Gibberellin A4+A7 (GA4+7) 90% TC Powder, CAS 510-75-8 (GA7) and 468-44-0 (GA4), is a defined-mixture PGR that improves apple and pear fruit shape, reduces russeting, and increases fruit set and weight. Foliar 5–25 mg/L at bloom and early fruit development depending on crop. TC grade for formulators; formulate into SL/EC (typical 1.8% + 6-BA 1.8% EC or 3.6% SL; formulation pH 3.0–5.0). MOQ 25kg; lead time about 10 working days to Shanghai port; OEM and batch COA available; 24-month shelf life.
Technical specifications
- Product Name
- Gibberellin A4+A7
- Other Names
- GA4+7
- Appearance
- White Crystalline Powder
- Assay
- 90%
- CAS No.
- GA4 468-44-0; GA7 510-75-8
- Molecular formula
- GA4 C₁₉H₂₄O₅; GA7 C₁₉H₂₂O₅
- Molecular weight
- GA4 332.39 g/mol; GA7 330.37 g/mol
Package
25kg Drum
Key benefits
- High-Purity Dual-Isomer Bioactivity: Combines active Gibberellin A4 (GA4) and Gibberellin A7 (GA7) isomers at ≥ 90% purity to deliver targeted physiological activity without causing excessive stem stretch associated with standard GA3.
- Superior Apple Russet Control & Finish Improvement: Effectively prevents skin russetting on sensitive apple varieties (such as Golden Delicious), enhancing epidermal elasticity, smooth skin finish, and premium pack-out rates.
- Fruit Elongation & Typical Shape Enhancement: Promotes cell division and longitudinal elongation in young fruitlets, driving signature fruit typiness (e.g., elongated "calyx lobes" in Red Delicious apples and pear cultivars).
- Enhanced Fruit Set & Seedless Fruit Induction: Stimulates parthenocarpy and ovary enlargement to boost fruit setting under adverse pollination conditions (such as cold spells or spring frosts) across pome fruits and cherries.
- Synergistic Formulations with Cytokinins: Serves as the primary active raw material for co-formulating with 6-BA (6-Benzylaminopurine) to produce commercial fruit-shaping and sizing liquid concentrates.
Suggested dosage & application
For formulators
TC grade; formulate into SL/EC. GA4+7 90% TC dissolves in methanol, ethanol or acetone and is typically formulated into 1.8% + 6-BA 1.8% EC liquid blends or 3.6% SL. Keep the formulation pH between 3.0 and 5.0 — gibberellins degrade under alkaline conditions. Every shipment includes a batch COA.
For direct field use (foliar spray)
Apples and pears (fruit shape, russet reduction, fruit set): 5–25 mg/L applied at bloom and early fruit development. Do not apply when temperature is below 7 °C or above 32 °C.
Related products
Frequently asked questions
01What is the CAS number of gibberellin A4+A7 (GA4+7)?
GA4+7 is a defined mixture of gibberellin A4 (CAS 468-44-0) and gibberellin A7 (CAS 510-75-8). The combined CAS most commonly cited on commercial COAs is 510-75-8. We supply 90% TC white crystalline powder with a batch COA for every shipment.
02What does GA4+7 do, and at what rates is it used?
GA4+7 reduces russeting on apple and pear skin, increases fruit weight and improves fruit shape (more pronounced lobes on apples), and increases fruit set in pears. Compared with GA3 alone, the GA4+7 combination gives better fruit-shape and finish quality at lower dose. General foliar rates are 5–25 mg/L applied at bloom and early fruit development, depending on crop and target response.
03Is this a ready-to-use product or a technical-grade material?
TC grade for formulators; formulate into SL/EC. GA4+7 90% TC dissolves in methanol, ethanol or acetone and is typically formulated into 1.8% + 6-BA 1.8% EC liquid blends or a 3.6% SL. Keep the formulation pH between 3.0 and 5.0 — gibberellins degrade under alkaline conditions. Ship every lot with a batch COA.
04What is the MOQ and lead time?
MOQ is 25kg. Typical lead time is about 10 working days to Shanghai port; OEM packaging and batch COA are available.
05How should GA4+7 be stored?
Store in a cool, dry place away from direct sunlight, in the original sealed packaging. Shelf life is 24 months.
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