721923-20-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 721923-20-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,2,1,9,2 and 3 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 721923-20:
(8*7)+(7*2)+(6*1)+(5*9)+(4*2)+(3*3)+(2*2)+(1*0)=142
142 % 10 = 2
So 721923-20-2 is a valid CAS Registry Number.
721923-20-2Relevant academic research and scientific papers
Gurjar, Mukund K.,Karmakar, Sukhen,Mohapatra, Debendra K.
, p. 4525 - 4526 (2004)
An asymmetric 10-step total synthesis of herbarumin III in 24% overall yield is described using ring-closing metathesis as the key step.
