104079-39-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 104079-39-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,0,7 and 9 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 104079-39:
(8*1)+(7*0)+(6*4)+(5*0)+(4*7)+(3*9)+(2*3)+(1*9)=102
102 % 10 = 2
So 104079-39-2 is a valid CAS Registry Number.
104079-39-2Relevant articles and documents
SYNTHESIS OF SPIROCYCLIC DIKETONES RELATED TO FREDERICAMYCIN A
Braun, Manfred,Veith, Reiner
, p. 179 - 182 (2007/10/02)
An intramolecular Friedel-Crafts type reaction of the thioacetals 7a and 7b is the key step in a simple synthesis of the diketones 2a and 2b.