21680-87-5 Usage
Class
Organophosphorus compounds
Structure
Phosphorus atom bonded to three phenyl groups and a phenylethynyl group
Type
Phosphazene oxide (phosphorus-containing heterocycle)
Physical state
Stable crystalline solid
Uses
Organic synthesis reactions, building block for complex molecule preparation
Potential applications
Materials science, pharmaceutical research (versatile intermediate in creating new chemical structures)
Check Digit Verification of cas no
The CAS Registry Mumber 21680-87-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,6,8 and 0 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 21680-87:
(7*2)+(6*1)+(5*6)+(4*8)+(3*0)+(2*8)+(1*7)=105
105 % 10 = 5
So 21680-87-5 is a valid CAS Registry Number.
