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1-Naphthalene acetic acid

Basic information Description References Safety Related Supplier

1-Naphthalene acetic acid Basic information

Product Name:
1-Naphthalene acetic acid
CAS:
86-87-3
MF:
C12H10O2
MW:
186.21
EINECS:
201-705-8
Mol File:
86-87-3.mol
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1-Naphthalene acetic acid Chemical Properties

Melting point:
141-143 °C(lit.)
Boiling point:
280.69°C (rough estimate)
Density 
1.1032 (rough estimate)
refractive index 
1.6010 (estimate)
Flash point:
>100°C
storage temp. 
2-8°C
solubility 
acetone: 50 mg/mL, clear
pka
4.30±0.30(Predicted)
form 
crystalline
color 
light yellow
PH
3.0 (0.6g/l, H2O, 25℃)
Water Solubility 
Slightly soluble in water, ethanol, acetone, chloroform and ether.
Merck 
14,6371
BRN 
1308415
InChIKey
PRPINYUDVPFIRX-UHFFFAOYSA-N
CAS DataBase Reference
86-87-3(CAS DataBase Reference)
NIST Chemistry Reference
1-Naphthaleneacetic acid(86-87-3)
EPA Substance Registry System
1-Naphthaleneacetic acid (86-87-3)
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Safety Information

Hazard Codes 
Xi,Xn,C
Risk Statements 
36/37/38-22-68-41-37/38-34
Safety Statements 
26-36-24/25-36/39-22-23-45-36/37/39-27
WGK Germany 
3
RTECS 
QJ0876000
HazardClass 
IRRITANT
HS Code 
29163900
Hazardous Substances Data
86-87-3(Hazardous Substances Data)
Toxicity
LD50 orally in Rabbit: 1000 mg/kg LD50 dermal Rabbit > 5000 mg/kg

MSDS

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1-Naphthalene acetic acid Usage And Synthesis

Description

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. NAA is a synthetic auxin plant hormone. 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.

References

[1] https://en.wikipedia.org/wiki/1-Naphthaleneacetic_acid
[2] http://pmep.cce.cornell.edu/profiles/herb-growthreg/naa-rimsulfuron/naa/herb-prof-naa.html

Chemical Properties

1-Naphthalene acetic acid is Light yellow crystals

Chemical Properties

1-Naphthalene acetic acid  is a white crystalline solid, needles, powder, or colorless liquid. Odorless.

Uses

Inducing rooting of plant cuttings, spraying apple trees to prevent early drop, fruit thinner.

Definition

1-Naphthalene acetic acid is a naphthylacetic acid substituted by a carboxymethyl group at position 1.

Hazard

Skin irritant.

Agricultural Uses

Plant growth regulator: An agent for thinning fruit sets in apples, pears, olives and some citrus. Induces root formation on cuttings and transplants. Inhibits fruit drops. Not currently registered in EU countries (pending). Registered for use in the U.S. and Canada.

Trade name

AGRONAA®; ALCO® NAA; ALPHASPRA ®; AMCOTONE® APPL-SET®; CELMONE®; DESTRUXOL®; DIP’N GROW®; FRUITONE®; GOLDENGRO®; HORMEX®; KLINGTITE®; LIQUISTIK ®; NAA 800®; NAFUSAKU®; NIAGARASTIK ®; NU-TONE®; PARMONE®; PHYMONE®; PIMACOL-SOL®; PLANOFIX®; PLUCKER®; PRIMACOL®; RHIZOPON B ROOTING POWDER; ROOTONE® (component, with Indole-3-butyric acid and 1-Naphthaleneacetamide); STAFAST®; STIK®; STOPDROP ®; TEKKAM®; TIPOFF®; TRANSPLANTONE® (component, with 1-Naphthaleneacetamide); TREHOLD ®; VARDHAK®

Safety Profile

Poison by intraperitoneal route. Moderately toxic by ingestion. Mutation data reported. A skin, mucous membrane, and severe eye irritant. Can cause depression. A pesticide, When heated to decomposition it emits acrid smoke and irritating fumes.

Potential Exposure

1-Naphthalene acetic acid is a carboxylic acid plant growth regulator used for thinning fruit sets in apples, pears, olives, and some citrus. Induces root formation on cuttings and transplants. Inhibits fruit drops. Not currently registered in EU countries (may be pending).

Shipping

UN1759 Corrosive solids, n.o.s., Hazard Class: 8; Labels: 8-Corrosive material, Technical Name Required.

Purification Methods

Crystallise the acid from EtOH or water. [Beilstein 9 H 666, 9 IV 2424.]

Incompatibilities

Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides, chlorates nitrates, ammonia, aliphatic amines, alkanolamines, isocyanates, alkylene oxides, epichlorohydrin. Compounds of the carboxyl group react with all bases, both inorganic and organic (i.e., amines) releasing substantial heat, water and a salt that may be harmful. Incompatible with arsenic compounds (releases hydrogen cyanide gas), diazo compounds, dithiocarbamates, isocyanates, mercaptans, nitrides, and sulfides (releasing heat, toxic, and possibly flammable gases), thiosulfates and dithionites (releasing hydrogen sulfate and oxides of sulfur).

Waste Disposal

Incineration. In accordance with 40CFR165, follow recommendations for the disposal of pesticides and pesticide containers.

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1-Naphthalene acetic acidSupplierMore

Alfa Aesar Gold
Tel:
400-610-6006; 021-67582000
Email:
saleschina@alfa-asia.com
J & K SCIENTIFIC LTD.
Tel:
010-82848833- ;010-82848833-
Email:
jkinfo@jkchemical.com;market6@jkchemical.com
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel:
+86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
Email:
sh@meryer.com
INTATRADE GmbH
Tel:
+49 3493/605464
Email:
sales@intatrade.de
Wujin Linchuan Chemical Co., Ltd
Tel:
0086-519-86461196
Email:
gxy@linchuanchem.com; gxx@linchuanchem.com; xp@linchuanchem.com
Basic information Description References Safety Related Supplier