136997-72-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 136997-72-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,9,9 and 7 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 136997-72:
(8*1)+(7*3)+(6*6)+(5*9)+(4*9)+(3*7)+(2*7)+(1*2)=183
183 % 10 = 3
So 136997-72-3 is a valid CAS Registry Number.
136997-72-3Relevant academic research and scientific papers
NOVEL SYNTHETIC METHOD FOR PIPERITENONES THROUGH DIELS-ALDER REACTION
Mandai, Tadakatsu,Osaka, Kazuhito,Kawagishi, Makoto,Kawada, Mikio,Otera, Junzo
, p. 797 - 804 (2007/10/02)
The Diels-Alder adduct obtained from 1-(2-phenylselenoethoxy)isoprene and methyl vinyl ketone was applied to synthesis of piperitenones.