105891-40-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 105891-40-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,5,8,9 and 1 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 105891-40:
(8*1)+(7*0)+(6*5)+(5*8)+(4*9)+(3*1)+(2*4)+(1*0)=125
125 % 10 = 5
So 105891-40-5 is a valid CAS Registry Number.
105891-40-5Relevant academic research and scientific papers
A NEW ROUTE TO CYCLOPENTANE-1,3-DIONES
Hamer, Neil K.
, p. 2167 - 2168 (2007/10/02)
2-Bromomethyl-2-hydroxycyclobutanones undergo ring expansion to substituted cyclopentane-1,3-diones in the presence of silver ion.