142768-65-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 142768-65-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,7,6 and 8 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 142768-65:
(8*1)+(7*4)+(6*2)+(5*7)+(4*6)+(3*8)+(2*6)+(1*5)=148
148 % 10 = 8
So 142768-65-8 is a valid CAS Registry Number.
142768-65-8Relevant articles and documents
New procedures for the preparation of isoflavones with unsubstituted ring A
Levai,Sebok
, p. 1735 - 1750 (2007/10/02)
Isoflavones with unsubstituted ring A have been synthesized either by the ring closure of 2-hydroxydeoxybenzoins or by the dehydroxylation of 7-hydroxyisoflavones. 7-Mercaptoisoflavones have also been prepared.