74793-10-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74793-10-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,7,9 and 3 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 74793-10:
(7*7)+(6*4)+(5*7)+(4*9)+(3*3)+(2*1)+(1*0)=155
155 % 10 = 5
So 74793-10-5 is a valid CAS Registry Number.
74793-10-5Relevant articles and documents
Facile Synthesis of 3-Methyl-5,6-dihydro-2H-pyran-2-ones and 3-Methylcoumarines under Mild Conditions
Falsone, Gioacchino,Spur, Bernd,Wingen, Peter H.
, p. 763 - 766 (2007/10/02)
The synthesis of the 3-methyl-5,6-dihydro-2H-pyran-2-one, 3, 5 and the 3-methylcoumarines 7a-e from the β-hydroxyoxo compounds 1,4,6a-c and the phosphonopropionic acid 2 under Wittig-Horner conditions is described.
