89839-72-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89839-72-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,8,3 and 9 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 89839-72:
(7*8)+(6*9)+(5*8)+(4*3)+(3*9)+(2*7)+(1*2)=205
205 % 10 = 5
So 89839-72-5 is a valid CAS Registry Number.
89839-72-5Relevant academic research and scientific papers
Synthesis of Protected βγ-Unsaturated Ketones from β-Diphenylphosphinoyl Ketones
Earnshaw, Chris,Torr, Richard S.,Warren, Stuart
, p. 2893 - 2902 (2007/10/02)
Ketals of β-diphenylphosphinoyl ketones combine with aldehydes and ketones in the Horner-Wittig reaction to give ketals of βγ-unsaturated ketones.
