The CAS Registry Mumber 77312-91-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,3,1 and 2 respectively; the second part has 2 digits, 9 and 1 respectively. Calculate Digit Verification of CAS Registry Number 77312-91: (7*7)+(6*7)+(5*3)+(4*1)+(3*2)+(2*9)+(1*1)=135 135 % 10 = 5 So 77312-91-5 is a valid CAS Registry Number.
Enuloses derives de derives di-O-isopropylidenes du D-glucose, D-galactose et D-fructose
Martinez, Ernesto,,Javier Usoz,Perez de Eulate, Melquiades
, p. 307 - 312 (2007/10/02)
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