108472-96-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 108472-96-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,8,4,7 and 2 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 108472-96:
(8*1)+(7*0)+(6*8)+(5*4)+(4*7)+(3*2)+(2*9)+(1*6)=134
134 % 10 = 4
So 108472-96-4 is a valid CAS Registry Number.
108472-96-4Relevant articles and documents
Pteridines. 51. A New and Unequivocal Route to C-6 Carbon-Substituted Pterins and Pteridines
Taylor, Edward C.,Ray, Partha S.
, p. 3997 - 4000 (1987)
Coupling of terminal acetylenes with 2-amino-3-cyano-5-bromopyrazine in the presence of catalytic amounts of palladium(II) salts and Cu(I) gave a series of 5-ethynyl derivatives which were cyclized with guanidine to 2,4-diamino-6-ethynyl-substituted pteri