Basic information Safety Supplier Related

NAPTALAM

Basic information Safety Supplier Related

NAPTALAM Basic information

Product Name:
NAPTALAM
Synonyms:
  • 2-((1-naphthalenylamino)carbonyl)-benzoicaci
  • 2-((1-naphthalenylamino)carbonyl)benzoicacid
  • 6q8
  • acp322
  • 1-N-NAPHTHYLPHTHALAMIC ACID (NPA)
  • peachthin322
  • solo
  • NPA
CAS:
132-66-1
MF:
C18H13NO3
MW:
291.3
Mol File:
132-66-1.mol
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NAPTALAM Chemical Properties

Melting point:
185-190 °C
Boiling point:
433.31°C (rough estimate)
Density 
d420 1.40
refractive index 
1.4800 (estimate)
storage temp. 
Sealed in dry,Room Temperature
solubility 
DMF: 25 mg/ml; DMF:PBS (pH 7.2) (1:3): 0.25 mg/ml; DMSO: 15 mg/ml
form 
Solid
pka
3.45±0.36(Predicted)
color 
White to Gray to Dark blue
Water Solubility 
0.2g/L(room temperature)
Merck 
14,6418
BRN 
2814102
Stability:
Stable. Incompatible with strong oxidizing agents.
CAS DataBase Reference
132-66-1(CAS DataBase Reference)
EPA Substance Registry System
Naptalam (132-66-1)
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Safety Information

Risk Statements 
36/37/38
Safety Statements 
26-36/37/39
RIDADR 
UN3077 (solid); UN3082 (liquid)
WGK Germany 
2
RTECS 
TH7350000
HS Code 
29242990
Hazardous Substances Data
132-66-1(Hazardous Substances Data)
Toxicity
LC50 (96-hour) for bluegill sunfish 354 mg/L and rainbow trout 76 mg/L (Hartley and Kidd, 1987); acute oral LD50 of the free acid and sodium salt for rats >8,200 and 1,800 mg/kg, respectively (Ashton and Monaco, 1991).
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NAPTALAM Usage And Synthesis

Chemical Properties

solid with an unpleasant odour

Uses

Selective preemergence herbicide used to control some grasses and many broadleaved weeds in soybeans, cucurbits, asparagus, groundnuts, potatoes and established woody ornamentals.

Uses

N-(1-Naphthyl)phthalamic Acid is an auxin-transport inhibitor in plants resulting in the attenuation of root growth through decreasing the cell production rate.

Definition

ChEBI: A dicarboxylic acid monoamide which results from addition of one equivalent of 1-naphthylamine to phthalic anhydride.

General Description

Naptalam is a purple crystalline solid, which can be used as an anti-geotropic agent and as an auxin (IAA) antagonist in plants.

Agricultural Uses

Herbicide: Used as a selective pre-emergence herbicide to control broadleaf weeds and grasses in soybeans, cucumbers, melons, peanuts and woody ornamentals. Not currently registered for use in the U.S. or EU countries. There are 25 global suppliers.

Trade name

N-1-naphthyl- Trade Names: ALANAP®[C]; ALANAPE®; ANCRACK®; DYANAP®; GRELUTIN®; MORCRAN ®; NAPTRO®; NIP-A-THIN®; PEACH-THIN®; RESCUE®[C]; 6Q8®; SOLO®

Environmental Fate

Soil/Plant. Degrades in soils and plants forming 1-naphthylamine and phthalic acid (Hartley and Kidd, 1987; Humburg et al., 1989). Residual activity in soil is limited to approximately 3 to 4 months (Hartley and Kidd, 1987).
Chemical/Physical. Forms N-(1-naphthyl)phthalimide at elevated temperatures (Worthing and Hance, 1991). Naptalam will precipitate as the free acid in very acidic waters or in extremely hard waters (Humburg et al., 1989).

Purification Methods

Crystallise the herbicide from EtOH (m 183-185o). The Na salt has m 185o. [Beilstein 12 H 1236, 12 I 525, 12 III 2876.]

NAPTALAMSupplier

J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Email
jkinfo@jkchemical.com
Alfa Aesar
Tel
400-6106006
Email
saleschina@alfa-asia.com
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Email
Sales-CN@TCIchemicals.com
Energy Chemical
Tel
021-021-58432009 400-005-6266
Email
sales8178@energy-chemical.com
Adamas Reagent, Ltd.
Tel
400-6009262 16621234537
Email
chenyj@titansci.com