156498-25-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156498-25-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,4,9 and 8 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 156498-25:
(8*1)+(7*5)+(6*6)+(5*4)+(4*9)+(3*8)+(2*2)+(1*5)=168
168 % 10 = 8
So 156498-25-8 is a valid CAS Registry Number.
156498-25-8Relevant articles and documents
Reversal of the regioselectivity of anthrapyrazole formation. A new synthesis of Losoxantrone (DUP941)
Zhang, Lin-Hua,Meier, Walter E.,Watson, Elton J.,Gibson, Emily P.
, p. 3675 - 3678 (1994)
Losoxantrone, a potent anticancer agent, has been efficiently synthesized in a 6 step process from 5-hydroxy-1,4- dichloroanthracene-9,10-dione.