The CAS Registry Mumber 66471-10-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,4,7 and 1 respectively; the second part has 2 digits, 1 and 0 respectively. Calculate Digit Verification of CAS Registry Number 66471-10: (7*6)+(6*6)+(5*4)+(4*7)+(3*1)+(2*1)+(1*0)=131 131 % 10 = 1 So 66471-10-1 is a valid CAS Registry Number.
Bile acids. LXXIX. Synthesis and reduction of 1,4-dien-3-ones of various bile acids
Iqbal,Elliott
, p. 413 - 425 (2007/10/02)
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