423765-17-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 423765-17-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,3,7,6 and 5 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 423765-17:
(8*4)+(7*2)+(6*3)+(5*7)+(4*6)+(3*5)+(2*1)+(1*7)=147
147 % 10 = 7
So 423765-17-7 is a valid CAS Registry Number.
423765-17-7Relevant academic research and scientific papers
The first total synthesis of (±)-napyradiomycin A1
Tatsuta, Kuniaki,Tanaka, Yoshiki,Kojima, Masazumi,Ikegami, Hiroshi
, p. 14 - 15 (2007/10/03)
(±)-Napyradiomycin A1 has been stereoselectively synthesized through a tandem Michael-Dieckmann type reaction and the introduction of a side chain and two chlorine atoms onto the pyranonaphthoquinone core.
