69803-67-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 69803-67-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,8,0 and 3 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 69803-67:
(7*6)+(6*9)+(5*8)+(4*0)+(3*3)+(2*6)+(1*7)=164
164 % 10 = 4
So 69803-67-4 is a valid CAS Registry Number.
69803-67-4Relevant 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.
