38103-58-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 38103-58-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,8,1,0 and 3 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 38103-58:
(7*3)+(6*8)+(5*1)+(4*0)+(3*3)+(2*5)+(1*8)=101
101 % 10 = 1
So 38103-58-1 is a valid CAS Registry Number.
38103-58-1Relevant articles and documents
Simple preparation of 4-aryl- and 4-alkyl-2(5H)-furanones from β-substituted crotonic esters
Kagabu,Shimizu,Ito,Moriya
, p. 830 - 832 (2007/10/02)
Treatment of β-aryl- or β-alkylcrotonic esters with selenium dioxide in acetic acid in the presence of a catalytic amount of perchloric acid gave 4-substituted 2(5H)-furanones in moderate to good yields.