254732-17-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 254732-17-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,4,7,3 and 2 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 254732-17:
(8*2)+(7*5)+(6*4)+(5*7)+(4*3)+(3*2)+(2*1)+(1*7)=137
137 % 10 = 7
So 254732-17-7 is a valid CAS Registry Number.
254732-17-7Relevant academic research and scientific papers
A direct synthesis of aflatoxin M2
Kraus, George A.,Wang, Xuemei
, p. 8513 - 8514 (2007/10/03)
A six-step synthesis of aflatoxin M2 starting from 1,3,5-trimethoxybenzene is described. The key step is the addition of dichloromethyllithium.
