190195-47-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 190195-47-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,0,1,9 and 5 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 190195-47:
(8*1)+(7*9)+(6*0)+(5*1)+(4*9)+(3*5)+(2*4)+(1*7)=142
142 % 10 = 2
So 190195-47-2 is a valid CAS Registry Number.
190195-47-2Relevant articles and documents
A Concise Synthesis of the Anthraquinone Portion of Dynemicin A
Magnus, Philip,Eisenbeis, Shane A.,Magnus, Nicholas A.
, p. 1545 - 1546 (1994)
Addition of the lactone anion derived from 29 to 13 gave the adduct 30, which was dehydrated to give 20; subsequent conversion of 20 into the anthraquinone 26 was achieved in two steps.
