52457-74-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 52457-74-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,4,5 and 7 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 52457-74:
(7*5)+(6*2)+(5*4)+(4*5)+(3*7)+(2*7)+(1*4)=126
126 % 10 = 6
So 52457-74-6 is a valid CAS Registry Number.
52457-74-6Relevant articles and documents
Generation of 2,3-naphthoquinones under non-oxidative conditions
Jones, David W.,Nongrum, Matthew
, p. 3357 - 3358 (2007/10/02)
The 2,3-naphthoquinones 1 (R = Ph, o-tolyl, COPh, Cl and Prn) can be generated by desilylation-debromination induced by fluoride ion (4; arrows) and trapped as the adducts 5 with norbornadiene.
