206647-08-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 206647-08-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,6,6,4 and 7 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 206647-08:
(8*2)+(7*0)+(6*6)+(5*6)+(4*4)+(3*7)+(2*0)+(1*8)=127
127 % 10 = 7
So 206647-08-7 is a valid CAS Registry Number.
206647-08-7Relevant articles and documents
Syntheses of (-)-(2R,3R,6S)-irnigaine and (+)-(2R,3R,6S)-N- methylirnigaine
Pahl, Axel,Wartchow, Rudolf,Meyer, Hartmut H.
, p. 2095 - 2096 (2007/10/03)
Syntheses of irnigaine 1 and the N-methyl derivative 10 were performed starting from chiral building block 2. Synthetic and spectroscopic data are given including the absolute structure of I by an X-ray structure of the hydrochloride.
