154348-55-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 154348-55-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,4,3,4 and 8 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 154348-55:
(8*1)+(7*5)+(6*4)+(5*3)+(4*4)+(3*8)+(2*5)+(1*5)=137
137 % 10 = 7
So 154348-55-7 is a valid CAS Registry Number.
154348-55-7Relevant articles and documents
K-region oxides and imines of benzo[b]phenanthro[2,3-d]thiophene and benzo[b]phenanthro[3,2-d]thiophene
Blum,Shalom,Harvey
, p. 1521 - 1524 (1993)
The syntheses of the K-oxides and K-imine derivatives of benzo[b]phenanthro[3,2-d]thiophene and benzo-[b]phenanthro[3,2-d]thiophene are described. The parent hydrocarbons 1 and 2 were oxidized with osmium tetroxide and sodium metaperiodate, and the dialde
