20854-03-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20854-03-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,8,5 and 4 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 20854-03:
(7*2)+(6*0)+(5*8)+(4*5)+(3*4)+(2*0)+(1*3)=89
89 % 10 = 9
So 20854-03-9 is a valid CAS Registry Number.
20854-03-9Relevant academic research and scientific papers
External oxidant-free cross-coupling of arylcopper and alkynylcopper reagents leading to arylalkyne
Wang, Sheng,Min, Yaosen,Zhang, Xiaowei,Xi, Chanjuan
, p. 28308 - 28312 (2017/07/07)
External oxidant-free oxidative cross-coupling between arylcopper and alkynylcopper has been performed, which provides a new way for the formation of arylalkyne with high selectivity.
