1,8-NAPHTHALIMIDE

PRODUCT IDENTIFICATION
CAS NO. 81-83-4

1,8-NAPHTHALIMIDE

EINECS NO.

201-379-7

FORMULA C12H7NO2
MOL WT. 197.19
H.S. CODE  
TOXICITY  
SYNONYMS 1H-benz[de]isoquinoline-1,3(2H)-dione; Naphthalimide;
1,8-Naphthalene Dicarboximide;
SMILES 
 

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE

pale brown powder

MELTING POINT 299 - 303 C
BOILING POINT  
SPECIFIC GRAVITY  
SOLUBILITY IN WATER  
AUTOIGNITION  
pH  
VAPOR DENSITY  
NFPA RATINGS  

REFRACTIVE INDEX

  
FLASH POINT

 

STABILITY Stable under ordinary conditions.

APPLICATIONS
1,8-Naphthalimide derived from naphthalic anhydride with ammonium hydroxide by heating, is used in the synthesis of primary amines and amino acids. Naphthalimides are used for the preparing of synthetic indigo, pesticides, pigments, dyes, pharmaceuticals, and fungicides.
SALES SPECIFICATION

APPEARANCE

pale brown powder

ASSAY

98.0% min

MELTING POINT 299 - 303 C
TRANSPORTATION
PACKING 25kgs in fiber drum
HAZARD CLASS  
UN NO.

 

GENERAL DESCRIPTION OF IMIDE AND IMINE
Imide refers to any compound which contains the divalent radical "-C(=O)NHC(=O)-". Imide compounds are derived from ammonia or primary amine, where two hydrogen atoms are replaced by a bivalent acid group or two monovalent acid groups, resulting in consisting of two carboxylic acid groups (or one dicarboxylic acid).  In other description, Imide is a compound derived from an acid anhydride by replacing the oxygen with the =NH group. Imides are monomers to prepare polyimides that contain repeating imide groups. Aromatic polyimides have better resistance to high temperatures and corrosion than linear polyimides. Frequently, the term of imide refers to the combined forms such as maleimides, phthalimides, and succinimides which are used as plastic modifiers to improve heat-resistant, antioxidant and antifoulant properties. They are used as intermediates for the synthesis of cross-linking agents, pesticides, dyes, antiseptics and crystalline adducting agents. They are also useful compounds in the synthesis of primary amines and amino acids for the application in the field of medicine and biological research. Phthalimide, derived from phthalic anhydride with ammonium hydroxide by heating, is used in the synthesis of primary amines and amino acids. It is used to make synthetic indigo and phthalocyanine pigments which have macrocyclic structure showing striking coloring features like porphyrins (biopigments). The radical "=NH" is called imido group. Imido is a prefix used to denote the presence in a compound of the bivalent group "=NH" attached to only acid radicals. Imine is a compound containing the bivalent "=NH" group combined with a bivalent nonacid group, as "R-HC=NH". It is produced by the condensation reactions of aldehydes or ketones with ammonia (or amines). Imino is a prefix denoting the presence of the bivalent group "=NH" attached to nonacid radicals.