85891-71-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 85891-71-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,5,8,9 and 1 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 85891-71:
(7*8)+(6*5)+(5*8)+(4*9)+(3*1)+(2*7)+(1*1)=180
180 % 10 = 0
So 85891-71-0 is a valid CAS Registry Number.
85891-71-0Relevant articles and documents
A NEW SYNTHESIS OF CYCLOPENTANONES BY THE RING EXPANSION OF 1-ACYL-1-CYCLOBUTANES
Yamashita, Mitsuo,Onozuka, Junko,Tsuchihashi, Gen-ichi,Ogura, Katsuyuki
, p. 79 - 82 (2007/10/02)
A new ring expansion of 1-acyl-1-cyclobutanes to give 2-cyclopentanones and its application to the synthesis of 2-, 2,4-, or 2,5-substituted cyclopentanones were studied.