668-40-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 668-40-6 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,6 and 8 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 668-40:
(5*6)+(4*6)+(3*8)+(2*4)+(1*0)=86
86 % 10 = 6
So 668-40-6 is a valid CAS Registry Number.
668-40-6Relevant articles and documents
Total syntheses of daldiniapyrone, annularin B, and (±)-annularin F
Kurdyumov, Aleksey V.,Munoz, R. Lizeth P.,Hsung, Richard P.
, p. 1787 - 1790 (2006)
The first concise total syntheses of daldiniapyrone, annuarin B, and (±)-annularin F are described. Georg Thieme Verlag Stuttgart.