81517-83-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81517-83-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,5,1 and 7 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 81517-83:
(7*8)+(6*1)+(5*5)+(4*1)+(3*7)+(2*8)+(1*3)=131
131 % 10 = 1
So 81517-83-1 is a valid CAS Registry Number.
81517-83-1Relevant academic research and scientific papers
Gonzalez, A. G.,Martin,J. D.,Perez, C.,Ramirez, M. A.,Ravelo, F.
, p. 5071 - 5072 (1981)
The total synthesis of obtusenol (9), a dibrominated sesquiterpene isolated from the red alga Laurencia obtusa, has been achived by a three-step synthesis starting from commercial farnesol.
