161297-28-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 161297-28-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,2,9 and 7 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 161297-28:
(8*1)+(7*6)+(6*1)+(5*2)+(4*9)+(3*7)+(2*2)+(1*8)=135
135 % 10 = 5
So 161297-28-5 is a valid CAS Registry Number.
161297-28-5Relevant academic research and scientific papers
(S)-(+)- und (R)-(-)-1,5-Dimethyl-4-phenyl-1,5-dihydro-2H-pyrrol-2-on durch Carben-Ringkontraktion und Decarboxylierung von (2R,3S)-(-)- und (2S,3R)-(+)-6-Diazo-3,4-dimethyl-2-phenyloxazepan-5,7-dion
Chelucci, Giorgio,Saba, Antonio
, p. 104 - 106 (2007/10/02)
Stichworte: Carbenreaktion * Diazoverbindungen * Ephedrin * Heterocyclen
