The CAS Registry Mumber 137935-44-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,9,3 and 5 respectively; the second part has 2 digits, 4 and 4 respectively. Calculate Digit Verification of CAS Registry Number 137935-44: (8*1)+(7*3)+(6*7)+(5*9)+(4*3)+(3*5)+(2*4)+(1*4)=155 155 % 10 = 5 So 137935-44-5 is a valid CAS Registry Number.
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6,8-dibromo-3-[3-(diethylamino)-2-hydroxypropyl]-