54981-81-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 54981-81-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,9,8 and 1 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 54981-81:
(7*5)+(6*4)+(5*9)+(4*8)+(3*1)+(2*8)+(1*1)=156
156 % 10 = 6
So 54981-81-6 is a valid CAS Registry Number.
54981-81-6Relevant academic research and scientific papers
Halogenation of Isoflavones Using Thionyl and Sulphuryl Chlorides
Merchant, J. R.,Martyres, G.
, p. 1331 - 1332 (2007/10/02)
The reactions of thionyl and sulphuryl chlorides on isoflavones have been found to give a number of new chloroisoflavones and isoflavanones, whose structures have been elucidated on the basis of their spectral analytical data.
