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1- Naphthylacetic Acid Auxin Growth Hormone Naa Growth Regulator CAS No 86-87-3

1- Naphthylacetic Acid Auxin Growth Hormone Naa Growth Regulator CAS No 86-87-3

  • High Light

    naa auxin hormone


    plant growth regulators auxin

  • Appearance
    Crystal Powder
  • Color
    White Or Off-white
  • CAS No.
  • MF
  • Other Name
    1-naphthlcetic Acid, NAA
  • Solubility In Water
    0.38g/L (17 °C)
  • Purity
    Min 98%
  • Place of Origin
    Henan Province, China
  • Brand Name
  • Certification
    ISO 9001 : 2008
  • Model Number
    Min 98%
  • Minimum Order Quantity
    25kg (samples can be offered)
  • Price
  • Packaging Details
    1kg/bag * 25bag/drum ; 25kgs/drum
  • Delivery Time
    1-10 working days
  • Payment Terms
    , T/T
  • Supply Ability
    30 MT per Month

1- Naphthylacetic Acid Auxin Growth Hormone Naa Growth Regulator CAS No 86-87-3



EINECS 209-475-0 Auxin Growth Hormone 1-Naphthylacetic Acid NAA 98%TC​



1.1-naphthylacetic acid ( NAA ) can prevent fruits and vegetables from falling flowers, change female and male flowers ratio.

2. NAA EINECS 209-475-0 can reduce cotton ball falling, increasing fruit weight gain, improve quality.

NAA EINECS 209-475-0 is a broad-spectrum-based plant growth regulator,

3.1-naphthylacetic acid ( NAA ) can promote cell division and expansion, induce the formation of adventitious roots, scope for cereal crops, increase tillers, panicle rate and grain weight;

4. NAA EINECS 209-475-0 can promote flowering fruit trees, anti-fruit drop, ripening increase.


Other Name:

2-(1-Naphthyl)acetic acid
EINECS 209-475-0

Acetic acid, 1-naphthyl-
Naphthalen-1-ylacetic acidα-Naphthylacetic acid
Naphthalene-1-acetic acid


1-Naphthylacetic acid
α-Naphthaleneacetic acid
1-Naphthalene Acetic Acid

Physics and chemical properties:
White crystal or amorphous power, boiling point at 373.2℃, stable in property and incombustible, It can be dissolved in water and organic solvents. It is a kind low toxicity plant growth regulator. Acute oral LD50 for 1000-5900mg/kg, on the skin and mucous membranes have a stimulating effect.



Technical Data


Technical Item

Technical Data
Density 1.2±0.1 g/cm3
Boiling Point 373.2±11.0 ℃ at 760 mmHg
Melting Point 141-143℃(lit.)
Molecular Weight 186.207
Flash Point 270.1±14.4 ℃
Exact Mass 186.068085
PSA 37.30000
LogP 2.74
Vapor Pressure 0.0±0.9 mmHg at 25℃
Refractive Index 1.652





a. Increase fruit-setting ratio:
1. To used on orange, apple, pear etc: to spray whole trees by 15-20mg/L in young fruit period; within 45days before picking, to spray the trees by10-20mg/L NAA liquid. Every 10-15days, it can accelerate fruit growth, prevent fruit from falling, and increase output obviously;
2. To used on watermelon, to spray the flowers in the earlier bloom period by 20-30mg/L NAA liquid, it can increase fruit-setting ratio, increase output;


b. Promote fruit and tuber enlarge quickly:
1. To used on sweet potato: to dip the young branch before transplant by 10-20mg/L for 6 hours, it can increase the activity ratio, enlarge the sweet potato, increase the output;
2. To used on cabbage, radish: Before sowing, to soak the seeds by 15-30mg/L for 12 hours, and then wash the seeds one or two times and then dry in the sun. It can accelerate fruit enlarge, and increase output about 15-20%;
3. To used in cotton: to spray the plants by 15-20mg/L NAA since blooming period, spray once in every 10~15days, total spray 3 times, it can prevent cotton-ball from falling, enlarge cotton boll, and increase output. 


c. To promote plant grow quickly and stronger, increase output and improve quality:
1. To used in corn: Soak the seed by 20-30mg/L for 12 hours before seeding; To spray the plants by 15-20mg/L in growing period, it can accelerate growing, increase output.
2. To used on wheat, rice: Soak the seed before seeding by 10-20mg/L liquid; to spray the plants by 15-25mg/l NAA liquid before shooting period, it can make plant stronger; To spray by 20-30mg/l NAA liquid in tillering stage. It can increase fruit-setting ratio, increase weight, increase wheat quantity, and it can enhance wheat resistibility on dry-hot wind, chilliness, disease etc.
3. To used on tomato, eggplant, cucumber etc: To spray the plants by 5-20mg/L NAA liquid 1-2 times in growing period, it can promote growth , enlarge fruit and increase output about 10%-20%;
4. To used on beans: to soak the seed by 10-20mg/l NAA liquid before seeding, and to spray the plant by 5-20mg/L NAA liquid, it can accelerate growth, let beans ripe earlier, increase output.


d. To promote formation of adventitious root and root


Relative products:
NAA is not soluble in water, we also has its sodium salt: sodium-NAA, it has the same effect with NAA and it is soluble in water.

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