73819-76-8 Usage
General Description
4-Ethynylphthalic anhydride is a chemical compound with the formula C10H4O3. It is a white solid that is insoluble in water but soluble in organic solvents. 4-ETHYNYLPHTHALIC ANHYDRIDE is used as a monomer for the production of polymers and copolymers in various applications, including as a building block for polyimides, polyesters, and other high-performance materials. It is also used as a reactant in the synthesis of pharmaceuticals, dyes, and other specialty chemicals. 4-Ethynylphthalic anhydride is considered to have low acute toxicity and no significant environmental impact, but proper handling and disposal procedures should be followed to prevent exposure and minimize environmental contamination.
Check Digit Verification of cas no
The CAS Registry Mumber 73819-76-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,8,1 and 9 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 73819-76:
(7*7)+(6*3)+(5*8)+(4*1)+(3*9)+(2*7)+(1*6)=158
158 % 10 = 8
So 73819-76-8 is a valid CAS Registry Number.
InChI:InChI=1/C10H4O3/c1-2-6-3-4-7-8(5-6)10(12)13-9(7)11/h1,3-5H
