1,4-NAPHTHYLQUINONE

PRODUCT IDENTIFICATION
CAS NO.

130-15-4

1,4-NAPHTHYLQUINONE
EINECS NO. 204-977-6
FORMULA C10H6O2
MOL WT. 158.15
H.S. CODE 2914.69
TOXICITY Oral rat LD50: 190 mg/kg
SYNONYMS alpha-Naphthoquinone; 1,4-Naphthoquinone;
p-Naphthoquinone; 1,4-Dihydro-1,4-Diketonaphthalene; 1,4-Naphthaquinone; 1,4-Naftochinon;
SMILES

 

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE greenish yellow powder
MELTING POINT 123 - 126 C
BOILING POINT  
SPECIFIC GRAVITY

1.43
SOLUBILITY IN WATER slightly soluble (soluble in hot alcohol and organic solvents)
pH  
VAPOR DENSITY  

AUTOIGNITION

 

NFPA RATINGS

 Health: 2; Flammability: 0; Reactivity: 0

REFRACTIVE INDEX

 
FLASH POINT

 
STABILITY Stable under ordinary conditions ( light sensitive)

APPLICATIONS
Naphthoquinone is the fundamental ring structure that is related with vitamin K activity, which can be formed by addition of long side chain substituents. Vitamin K1(also called phytonadione or phylloquinone) is a naphthoquinone compound with phytyl side chain and methyl group at 3 and 2 position respectively. A naphthoquinone compound with prenyl units side cnain at 3 position and methyl group at 2 position is Vitamin K2 (also called menaquinone). Menadione is a synthetic provitamin K (called Vitamin K3) which has substituted methyl group only at 2 position on naphthoquinone ring. Vitamin K is essential to promote blood clotting factors including prothrombin, playing a role in a carboxylation reaction when glutamates converted to g-carboxyglutamates. In industrial field, naphthoquinone is used as a rubber (and polyester resins) polymerization regulator. It is used as an intermediate for pharmaceuticals and pesticides. It is used as an antimycotic agent.
SALES SPECIFICATION

APPEARANCE

 greenish yellow powder
CONTENT

96.0% min
TRANSPORTATION
PACKING 25kg sin fiber drum
HAZARD CLASS 6.1 (Packing Group: III)
UN NO. 2811
OTHER INFORMATION
Hazard Symbols: T, Risk Phrases: 25-36/37/38, Safety Phrases: 26-28A-37/39-45