The CAS Registry Mumber 197578-21-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,7,5,7 and 8 respectively; the second part has 2 digits, 2 and 1 respectively. Calculate Digit Verification of CAS Registry Number 197578-21: (8*1)+(7*9)+(6*7)+(5*5)+(4*7)+(3*8)+(2*2)+(1*1)=195 195 % 10 = 5 So 197578-21-5 is a valid CAS Registry Number.
Base-dependent regioselective and P-stereocontrolled hydrolysis of nucleoside 3'-O-(O-2,4,6-trimethylbenzoyl methanephosphonothioate)s
Wozniak,Chworos,Pyzowski,Stec
, p. 9109 - 9112 (2007/10/03)
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Get Best Price for197578-21-5(R)-Methyl-phosphonothioic acid O-[(2R,3S,5R)-2-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-5-(2-isobutyrylamino-6-oxo-1,6-dihydro-purin-9-yl)-tetrahydro-furan-3-yl] ester