201667-89-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 201667-89-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,1,6,6 and 7 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 201667-89:
(8*2)+(7*0)+(6*1)+(5*6)+(4*6)+(3*7)+(2*8)+(1*9)=122
122 % 10 = 2
So 201667-89-2 is a valid CAS Registry Number.
201667-89-2Relevant academic research and scientific papers
Synthetic studies on ciguatoxin [1]; construction of the spiro acetal part (C46-C55)
Oka, Takahiro,Murai, Akio
, p. 1 - 20 (2007/10/03)
The spiro acetal part (C46-C55) of ciguatoxin was synthesized stereoselectively.