6604-81-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6604-81-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,6,0 and 4 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 6604-81:
(6*6)+(5*6)+(4*0)+(3*4)+(2*8)+(1*1)=95
95 % 10 = 5
So 6604-81-5 is a valid CAS Registry Number.
6604-81-5Relevant academic research and scientific papers
A mild oxidation of aldehydes to α,β-unsaturated aldehydes
Williams, David R.,Nishitani, Kiyoshi
, p. 4417 - 4420 (2007/10/02)
Phenylselenenyl chloride reacts with enamines at -110° C to give α-phenylselenoaldehydes, and oxidative elimination yields α,β-unsaturated aldehydes.