The CAS Registry Mumber 79409-73-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,4,0 and 9 respectively; the second part has 2 digits, 7 and 3 respectively. Calculate Digit Verification of CAS Registry Number 79409-73: (7*7)+(6*9)+(5*4)+(4*0)+(3*9)+(2*7)+(1*3)=167 167 % 10 = 7 So 79409-73-7 is a valid CAS Registry Number.
Partial synthesis of (20R,22R)-20,22-dihydroxycholesterol
Kyler,Watt
, p. 5182 - 5188 (2007/10/02)
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