N-PHENYLMALEIMIDE

PRODUCT IDENTIFICATION

CAS NO. 941-69-5

EINECS NO. 213-382-0
FORMULA C10H7NO2
MOL WT. 173.17

H.S. CODE

2925.19

TOXICITY

Oral rat LD50: 58 mg/kg
SYNONYMS Maleimidobenzene; Maleanil; 1-Phenyl-1H-pyrrole-2,5-dione;
N-Phenylmaleic Acid Imide; N-Fenylimid kyseliny maleinove; PMI;
SMILES

 

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE Yellow Solid
MELTING POINT 85 - 87 C
BOILING POINT 162 - 163 C
SPECIFIC GRAVITY

1.38

SOLUBILITY IN WATER Slightly soluble
pH  
VAPOR DENSITY  

AUTOIGNITION

 

NFPA RATINGS

 

REFRACTIVE INDEX

 

FLASH POINT

 

STABILITY Stable under ordinary conditions

APPLICATIONS

N-Phenylmaleimide is used as a plastic modifier for ABS , PVC, PVA and other engineering plastics to improve heat-resistant, anti-oxidant and anti-foulant properties. It is used as an intermediate for the synthesis of cross-linking agents, pharmaceuticals, pesticides, antiseptics and crystalline adducting agents.
SALES SPECIFICATION

APPEARANCE

Yellow Solid

PURITY

99%min

MELTING POINT

84 - 89 C

BOILING POINT

162 C min (at 20 mmHg)

ACID VALUE

5 max (KOH mg/kg)

MALEIC ACID

0.01% max

N-PHENYLMALEIC

0.1% max

TRANSPORTATION
PACKING 25kgs, 200kgs in Bag
HAZARD CLASS 6.1 (Packing Group: III)
UN NO. 2811
OTHER INFORMATION
European Hazard Symbols: T, Risk Phrases: 25/36/37/38, Safety Phrases: 24/25

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). Phthalimide has isoindole moiety. Indole structure is a motif in nature. Prominent examples include tryptophan (aromatic side chain amino acid), serotonin (neurotransmitter), auxin (plant growth hormone), and indigo (plant colorant). 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.