105931-81-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 105931-81-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,5,9,3 and 1 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 105931-81:
(8*1)+(7*0)+(6*5)+(5*9)+(4*3)+(3*1)+(2*8)+(1*1)=115
115 % 10 = 5
So 105931-81-5 is a valid CAS Registry Number.
105931-81-5Relevant articles and documents
NEW METHOD OF SYNTHESIS OF 3-ALKLYL-4-PIPERIDONES
Grishina, G. V.,Potapov, V. M.,Abdulganeeva, S. A.
, p. 304 - 306 (2007/10/02)
A new method is presented for the synthesis of 3-substituted 4-piperidones by alkylation of lithium derivatives of 4-(α-phenylethylimino) piperidines using alkyl halides.