ISATOIC ANHYDRIDE

PRODUCT IDENTIFICATION
CAS NO. 118-48-9

ISATOIC ANHYDRIDE

EINECS NO. 204-255-0
FORMULA C8H5NO3
MOL WT. 163.13
H.S. CODE  
TOXICITY  
SYNONYMS 4H-3,1-benzoxazine-2,4(1H)-dione;
1,2-Dihydro-4H-3,1-benzoxazine-2,4-dione; 2H-3,1-Benzoxazine-2,4(1H)-dione; Anthranilic Acid, N-carboxy-, Cyclic Anhydride; Isatoic Acid Anhydride; Benzoic Acid, 2-(Carboxyamino)-, Cyclic Anhydride; N-carboxyanthranilic Anhydride; 4H-3,1-benzoxazina-2,4(1H)-diona (Spanish);
DERIVATION 
 

CLASSIFICATION

CARBOXYLIC ACID ANHYDRIDES /

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE tan powder
MELTING POINT 235 C
BOILING POINT  
SPECIFIC GRAVITY  
SOLUBILITY IN WATER Miscible
AUTOIGNITION 350 C
pH 5.6
VAPOR DENSITY  
NFPA RATINGS  

REFRACTIVE INDEX

 

FLASH POINT

308 C

STABILITY Stable under ordinary conditions

APPLICATIONS
Isatoic Anhydride is a hetero bicyclic aromatic compound with diketone at 2 and 4 positions and additional one oxygen atom in the ring system. It, a cyclic ester, is a versatile intermediate used for the manufacture of target materials. It has a lactam structure which is an important part of antibiotics, such as penicillin and textiles. Cyclic anhydride compounds are widely used in the synthesis of dyes, pigments, cosmetics additives, polymer additives, agrochemicals, textiles and paper chemicals, lubricant additives and corrosion inhibitors.
SALES SPECIFICATION

APPEARANCE

 tan powder

PURITY

98.0% min

MOISTURE

0.5% max

ASH

0.2% max

MELTING POINT

237 C min

FREE PHTHALIMIDE

0.5% max

TRANSPORTATION
PACKING 25kgs in bag
HAZARD CLASS  
UN NO.

 

OTHER INFORMATION
Hazard Symbols: XI, Risk Phrases: 36-46, Safety Phrases: 24-26-37