91-93-0 Usage
General Description
Gray to brown powder or dark beige sandy powder. Melting point 112°C. Insoluble in water. Toxic by inhalation and ingestion. A skin irritant. Used in making plastics.
Air & Water Reactions
Insoluble in water.
Reactivity Profile
3,3'-DIMETHOXY-4,4'-BIPHENYLENE DIISOCYANATE may react with amines, aldehydes, alcohols, alkali metals, ketones, mercaptans, strong oxidizing agents, hydrides, phenols, and peroxides with vigorous releases of heat. May undergo polymerization reactions with acids and bases.
Fire Hazard
Flash point data for 3,3'-DIMETHOXY-4,4'-BIPHENYLENE DIISOCYANATE are not available; however, 3,3'-DIMETHOXY-4,4'-BIPHENYLENE DIISOCYANATE is probably combustible.
Safety Profile
Poison by intravenous
route. A strong sensitizer. Questionable
carcinogen with experimental carcinogenic
data. When heated to decomposition it
emits toxic fumes of NOx. See also
CYANATES.
Check Digit Verification of cas no
The CAS Registry Mumber 91-93-0 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 9 and 1 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 91-93:
(4*9)+(3*1)+(2*9)+(1*3)=60
60 % 10 = 0
So 91-93-0 is a valid CAS Registry Number.