The CAS Registry Mumber 73891-85-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,8,9 and 1 respectively; the second part has 2 digits, 8 and 5 respectively. Calculate Digit Verification of CAS Registry Number 73891-85: (7*7)+(6*3)+(5*8)+(4*9)+(3*1)+(2*8)+(1*5)=167 167 % 10 = 7 So 73891-85-7 is a valid CAS Registry Number.
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Get Best Price for73891-85-7Oxirane, methyl-, polymer with oxirane, ether with (1,2-ethanediyldinitrilo)tetrakis[propanol] , sulfate (ester), sodium salt