199792-20-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 199792-20-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,7,9 and 2 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 199792-20:
(8*1)+(7*9)+(6*9)+(5*7)+(4*9)+(3*2)+(2*2)+(1*0)=206
206 % 10 = 6
So 199792-20-6 is a valid CAS Registry Number.
199792-20-6Relevant articles and documents
Synthetic studies on ciguatoxin [2]; synthesis of the A,B,C-ring system
Oka, Takahiro,Fujiwara, Kenshu,Murai, Akio
, p. 21 - 44 (2007/10/03)
The synthesis of the A,B,C-ring system having all the natural substituents of ciguatoxin was achieved from D-glucose.