857560-11-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 857560-11-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,7,5,6 and 0 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 857560-11:
(8*8)+(7*5)+(6*7)+(5*5)+(4*6)+(3*0)+(2*1)+(1*1)=193
193 % 10 = 3
So 857560-11-3 is a valid CAS Registry Number.
857560-11-3Relevant academic research and scientific papers
Simple and cost effective syntheses of 4-hydroxycoumarin
Jung, Jae-Chul,Kim, Ju-Cheun,Park, Oee-Sook
, p. 3587 - 3595 (2007/10/03)
Two simple and inexpensive methods for the preparation of 4- hydroxycoumarin from aspirin are described, which should be readily amenable to large scale synthesis.
