The CAS Registry Mumber 79787-58-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,7,8 and 7 respectively; the second part has 2 digits, 5 and 8 respectively. Calculate Digit Verification of CAS Registry Number 79787-58: (7*7)+(6*9)+(5*7)+(4*8)+(3*7)+(2*5)+(1*8)=209 209 % 10 = 9 So 79787-58-9 is a valid CAS Registry Number.
Syntheses and activities of antioxidant derivatives of retinoic acid
Welch,Gruber,Rao
, p. 81 - 84 (2007/10/02)
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