Naphthaleneacetic acid

CAS:86-87-3 

Melting point:141-143 °C(lit.)

Boiling point:280.69°C (rough estimate)

Density:1.1032 (rough estimate)

Refractive index:1.6010 (estimate)

Storage temp.:2-8°C

1-naphthaleneacetic acid (NAA, also named as α-naphthaleneacetic acid) belongs to a class of organic compounds of

naphthalenes, which contain a naphthalene moiety of two fused benzene rings. 

It is used as a plant growth regulator to control preharvest fruit drop, flower induction and fruit thinning in various crops

such as apples, potatoes, olives, and citrus fruits. It is used as a rooting agent and used for the vegetative propagation of

plants from stem and leaf cutting. It is also used for plant tissue culture and as herbicide. Applied as a dust or spray it delays

dissolution of the abscission layer, retarding the fruit drop. The effect of NAA on plant growth is greatly dependent on the

time of admission and concentration. When used after four weeks, NAA stimulates shoot growth, while full-time use limits

growth. When used in a 4-week pulse, adventitious root growth is greatly increased.