87943-98-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87943-98-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,9,4 and 3 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 87943-98:
(7*8)+(6*7)+(5*9)+(4*4)+(3*3)+(2*9)+(1*8)=194
194 % 10 = 4
So 87943-98-4 is a valid CAS Registry Number.
87943-98-4Relevant academic research and scientific papers
Facile and efficient method for oc-monobromination of dicarbonyl compounds with N-bromosuccinimide
Fang, Li-Zhen,Shen, Jiu-Ming,Lv, Qing-Hua,Yan, Fu-Lin
experimental part, p. 3425 - 3427 (2012/02/04)
The a-monobrominated products were prepared fast in presence of p-TsOH as catalyst in very high yields using various 1,3-diketones and β-keto-esters with N-bromosuccinimide in CH2C12.
