Product Specification: NAA (1-Naphthaleneacetic Acid) 99% TC

Product Name: 1-Naphthaleneacetic Acid (NAA) 99% TC
Chemical Name: 1-Naphthaleneacetic Acid
CAS Number: 86-87-3
Molecular Formula: C₁₂H₁₀O₂
Molecular Weight: 186.21 g/mol
Formulation Type: Technical Concentrate (TC)
Active Ingredient Content: ≥99.0% (by HPLC or GC)

Description:

1-Naphthaleneacetic Acid (NAA) 99% TC is a synthetic plant growth regulator belonging to the auxin family. It is widely used in agriculture and horticulture to promote root formation, fruit thinning, and as a fruit drop retardant. NAA mimics the natural auxin hormones in plants, stimulating cell elongation, division, and differentiation.

This high-purity technical concentrate serves as a raw material for the manufacture of various formulations such as soluble powders, emulsifiable concentrates, and water-soluble concentrates, commonly applied as foliar sprays, soil drenches, or dips.

Physical and Chemical Properties:

• Appearance: White to off-white crystalline powder

• Odor: Odorless to faint characteristic odor

• Melting Point: 137–140°C

• Solubility:

  • Slightly soluble in water (approximately 10 mg/L at 20°C)

  • Soluble in organic solvents like ethanol, acetone, and chloroform

• Density: Approximately 1.3 g/cm³

• Stability: Stable under recommended storage conditions; sensitive to strong oxidizers and prolonged exposure to sunlight

Specification Parameters:

Mode of Action:

NAA acts as a synthetic auxin, regulating various aspects of plant growth and development by stimulating cell elongation, root initiation, and fruit development. It mimics the action of naturally occurring auxins, promoting root formation in cuttings and preventing premature fruit drop by balancing hormonal activity in plant tissues.

Applications:

• Agricultural Uses:

  • Rooting hormone for cuttings of ornamentals, fruit plants, and vegetables

  • Fruit thinning agent in apple and pear orchards

  • Prevention of premature fruit drop in citrus and stone fruits

  • Regulation of flowering and fruit set

• Horticulture:

  • Used to improve rooting success in nursery stock and propagation

  • Enhances growth uniformity and quality in floriculture crops

• Formulated Products:

  • Water-soluble powders (WSP)

  • Emulsifiable concentrates (EC)

  • Solution concentrates (SL)

Toxicological Profile:

• Oral LD₅₀ (rat): >5000 mg/kg (low toxicity)

• Skin Irritation: Non-irritant to mild irritant

• Eye Irritation: Mild irritant

• Sensitization: Non-sensitizing

• Environmental Impact: Low toxicity to mammals and birds; biodegradable in the environment with minimal persistence

Packaging and Storage:

• Packaging: Supplied in sealed polyethylene bags, aluminum foil bags, or fiber drums with inner liners. Common pack sizes include 1 kg, 5 kg, 10 kg, and 25 kg.

• Storage Conditions: Store in a cool, dry, well-ventilated place away from direct sunlight, moisture, and incompatible substances. Keep containers tightly closed.

• Shelf Life: Minimum 24 months under recommended storage conditions

Conclusion:

NAA 99% TC is a high-purity synthetic auxin widely used as a plant growth regulator for rooting, fruit thinning, and controlling fruit drop. Its reliable performance, stability, and safety profile make it an essential tool in modern agriculture and horticulture. Proper handling and storage ensure optimal efficacy and product longevity.