1255860-57-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1255860-57-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,5,8,6 and 0 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1255860-57:
(9*1)+(8*2)+(7*5)+(6*5)+(5*8)+(4*6)+(3*0)+(2*5)+(1*7)=171
171 % 10 = 1
So 1255860-57-1 is a valid CAS Registry Number.
1255860-57-1Relevant articles and documents
Divergent approach to flavones and aurones via dihaloacrylic acids. unexpected dependence on the halogen atom
Kraus, George A.,Gupta, Vinayak
supporting information; experimental part, p. 5278 - 5280 (2011/02/21)
The reaction of phenols with 7a led to the synthesis of aurones, while the reaction of phenols with 7b led to the synthesis of flavones.