212839-91-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 212839-91-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,2,8,3 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 212839-91:
(8*2)+(7*1)+(6*2)+(5*8)+(4*3)+(3*9)+(2*9)+(1*1)=133
133 % 10 = 3
So 212839-91-3 is a valid CAS Registry Number.
212839-91-3Relevant academic research and scientific papers
Synthetic and structural studies of some new butenolactones
Kothiyal,Khanna,Chamoli
, p. 149 - 151 (2007/10/03)
A series of new butenolactones (IV-XI) has been prepared by condensing β-(4-phenylbenzoyl) acrylic acid with phenols.
