Description

Gibberellin A4+7 (Ga4:Ga7=65:35) is a high-purity, synergistic blend of two key plant growth hormones, Gibberellin A4 and Gibberellin A7, formulated in a precise 65:35 ratio. This specific composition is engineered to deliver superior and consistent physiological effects in plant systems, making it a critical component for advanced agricultural and horticultural applications. It is essential for formulators and manufacturers in the agrochemical, biostimulant, and plant tissue culture industries seeking to enhance crop yield, fruit quality, and plant development.

Application

• Fruit Set and Development: Promotes uniform fruit set, reduces russeting, and improves fruit shape and size in apples, pears, and other pome fruits.
• Seedless Fruit Production (Parthenocarpy): Induces the formation of seedless fruits in crops like grapes, cucumbers, and tomatoes without the need for pollination.
• Plant Growth Regulation: Used in foliar sprays and growth regulator formulations to stimulate stem elongation, break dormancy in buds and seeds, and improve overall plant vigor.
• Malting in Brewing: Applied in the malting process of barley to promote uniform germination and modify endosperm for optimal enzyme activity.
• Plant Tissue Culture: A key component in culture media to promote callus growth, cell elongation, and organogenesis in micropropagation protocols.
• Hybrid Seed Production: Facilitates flowering and pollen viability, aiding in the production of hybrid seeds for various crops.

Basic Information

Product Name	Gibberellin A4+7 (Ga4:Ga7=65:35)
CAS No.	668-44-0
Molecular Formula	C₁₉H₂₄O₅ (for both GA4 and GA7)
Molecular Weight	332.39 g/mol
Synonyms	GA4/7; Gibberellin A4/A7; Gibberellic Acid A4/A7 mixture; GA4+GA7; (1R,2R,5S,8S,9S,10R,12S)-12-Hydroxy-11-methyl-6-methylidene-16-oxo-15-oxapentacyclo[9.3.2.15,8.01,10.02,8]heptadec-13-ene-9-carboxylic acid and related isomer; ProGibb; Regulex; Berelex (related trade names for gibberellin products)
EINECS	Contact for details

Quality Control

Our Gibberellin A4+7 is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for precise quantification of the GA4:GA7 ratio and total potency, to ensure consistent biological activity and purity. Certificates of Analysis (COA) detailing assay, related substances, and physical parameters are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C (refrigerated) or as specified on the label. This product is hygroscopic (moisture-sensitive); ensure the container is sealed after each use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 90.0% (Total Gibberellins A4+A7)
Ratio (GA4 : GA7)	65 : 35 (± 5%)
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.