99209-23-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99209-23-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,2,0 and 9 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 99209-23:
(7*9)+(6*9)+(5*2)+(4*0)+(3*9)+(2*2)+(1*3)=161
161 % 10 = 1
So 99209-23-1 is a valid CAS Registry Number.
99209-23-1Relevant articles and documents
N-PHENYLATION OF AMINO ACID DERIVATIVES
Barton, Derek H. R.,Finet, Jean-Pierre,Khamsi, Jamal
, p. 937 - 940 (2007/10/02)
The selective mono N-phenylation of α-amino acid derivatives has been performed with triphenylbismuth diacetate in the presence of a catalytic amount of copper metal or copper diacylate.
