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1-Naphthyl isothiocyanate

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1-Naphthyl isothiocyanate Basic information

Product Name:
1-Naphthyl isothiocyanate
CAS:
551-06-4
MF:
C11H7NS
MW:
185.24
EINECS:
208-990-8
Mol File:
551-06-4.mol
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1-Naphthyl isothiocyanate Chemical Properties

Melting point:
55.5-57 °C(lit.)
Boiling point:
190 °C(Press: 20 Torr)
Density 
1.1142 (rough estimate)
refractive index 
1.5500 (estimate)
storage temp. 
2-8°C
form 
Fine Crystalline Powder
color 
Yellow
Water Solubility 
insoluble
Sensitive 
Moisture Sensitive
Merck 
14,6411
BRN 
637868
Stability:
Stable, but moisture sensitive. Incompatible with strong oxidizing agents.
CAS DataBase Reference
551-06-4(CAS DataBase Reference)
NIST Chemistry Reference
Naphthalene, 1-isothiocyanato-(551-06-4)
EPA Substance Registry System
1-Naphthylisothiocyanate (551-06-4)
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Safety Information

Hazard Codes 
T
Risk Statements 
20/21-25-36/37/38-42-23/24/25
Safety Statements 
22-26-36/37-45-24/25
RIDADR 
UN 2811 6.1/PG 3
WGK Germany 
3
RTECS 
NX9100000
TSCA 
Yes
HazardClass 
6.1
PackingGroup 
II
HS Code 
29309090

MSDS

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1-Naphthyl isothiocyanate Usage And Synthesis

Chemical Properties

white crystalline powder

General Description

Odorless white needles or powder. Tasteless.

Air & Water Reactions

1-Naphthyl isothiocyanate is moisture sensitive. . Undergoes slow hydrolysis. Insoluble in water.

Reactivity Profile

Isocyanates and thioisocyanates, such as 1-Naphthyl isothiocyanate, are incompatible with many classes of compounds, reacting exothermically to release toxic gases. Reactions with amines, aldehydes, alcohols, alkali metals, ketones, mercaptans, strong oxidizers, hydrides, phenols, and peroxides can cause vigorous releases of heat. Acids and bases initiate polymerization reactions in these materials. Some isocyanates react with water to form amines and liberate carbon dioxide. Base-catalysed reactions of isocyanates with alcohols should be carried out in inert solvents. Such reactions in the absence of solvents often occur with explosive violence, [Wischmeyer(1969)].

Fire Hazard

Flash point data for 1-Naphthyl isothiocyanate is not available, but 1-Naphthyl isothiocyanate is probably combustible.

Purification Methods

Crystallise the isothiocyanate from hexane (1g in 9 mL). It forms white needles and is soluble in most organic solvents but is insoluble in H2O. It is absorbed through the skin and may cause dermatitis. [Cymmerman-Craig et al. Org Synth Coll Vol IV 700 1963, Beilstein 12 H 1244, 12 III 2948.]

1-Naphthyl isothiocyanate Preparation Products And Raw materials

Raw materials

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1-Naphthyl isothiocyanateSupplierMore

Beijing FYF Chemicals Co., Ltd Gold
Tel:
010-57903446-
Email:
1460285141@qq.com;
J & K SCIENTIFIC LTD.
Tel:
010-82848833- ;010-82848833-
Email:
jkinfo@jkchemical.com;market6@jkchemical.com
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel:
21-61259100-
Email:
sh@meryer.com
Alfa Aesar
Tel:
400-610-6006; 021-67582000
Email:
saleschina@alfa-asia.com
TCI (Shanghai) Development Co., Ltd.
Tel:
021-67121386 / 800-988-0390
Email:
Sales-CN@TCIchemicals.com
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