147912-93-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 147912-93-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,7,9,1 and 2 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 147912-93:
(8*1)+(7*4)+(6*7)+(5*9)+(4*1)+(3*2)+(2*9)+(1*3)=154
154 % 10 = 4
So 147912-93-4 is a valid CAS Registry Number.
147912-93-4Relevant academic research and scientific papers
Uneyama,Tokunaga,Maeda
, p. 1311 - 1312 (1993)
Pummerer reaction of difluoromethyl phenyl selenoxide with acetic anhydride proceeds at refluxing temperature of CH2-Cl2, generating difluorophenylselenomethyl carbocation equivalent which can be trapped with cyclic ethers to give ω-
