156022-78-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156022-78-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,0,2 and 2 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 156022-78:
(8*1)+(7*5)+(6*6)+(5*0)+(4*2)+(3*2)+(2*7)+(1*8)=115
115 % 10 = 5
So 156022-78-5 is a valid CAS Registry Number.
156022-78-5Relevant articles and documents
Asymmetric synthesis. XXXI. Synthesis of 2-substituted piperazines from chiral non-racemic lactams
Schanen, Vincent,Riche, Claude,Chiaroni, Angele,Quirion, Jean-Charles,Husson, Henri-Philippe
, p. 2533 - 2536 (1994)
The preparation of lactam 2 from R-(-)-phenylglycinol and N-Boc glycine is described. Diastereoselective alkylation of 2 allowed the preparation of piperazine derivatives in an optically pure form.
