874219-70-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 874219-70-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,4,2,1 and 9 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 874219-70:
(8*8)+(7*7)+(6*4)+(5*2)+(4*1)+(3*9)+(2*7)+(1*0)=192
192 % 10 = 2
So 874219-70-2 is a valid CAS Registry Number.
874219-70-2Relevant academic research and scientific papers
A novel approach to the synthesis of 11,11-dimethyl-bisbenzopyran-5-ones
Jain, Nareshkumar,Xu, Jiayi,Chen, Ningyi,Sui, Zhihua
, p. 225 - 228 (2007/10/03)
A facile route for the synthesis of 11,11-dimethyl-bisbenzopyran-5-ones ring system is described. The key step, the late stage oxidation of the allylic methylene group was achieved by benzyl(triethyl)ammonium permanganate in CH 2Cl2.
