102775-81-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 102775-81-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,2,7,7 and 5 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 102775-81:
(8*1)+(7*0)+(6*2)+(5*7)+(4*7)+(3*5)+(2*8)+(1*1)=115
115 % 10 = 5
So 102775-81-5 is a valid CAS Registry Number.
102775-81-5Relevant articles and documents
A One-Carbon Ring Enlarged Cyclopropanation or Vinylation Reaction of Cyclic Keto Esters or Sulfones
Sugawara, Tomoo,Kuwajima, Isao
, p. 5571 - 5574 (2007/10/02)
On treating potassium salts of n-membered cyclic keto esters or sulfones with phenyl 1-propenyl selenone, a one-carbon ring expansion reaction involving cyclopropanation or vinylation takes place to give the corresponding bicycloalkanones or (n