The CAS Registry Mumber 135871-62-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,8,7 and 1 respectively; the second part has 2 digits, 6 and 2 respectively. Calculate Digit Verification of CAS Registry Number 135871-62: (8*1)+(7*3)+(6*5)+(5*8)+(4*7)+(3*1)+(2*6)+(1*2)=144 144 % 10 = 4 So 135871-62-4 is a valid CAS Registry Number.
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Get Best Price for135871-62-44H-Pyrrolo[3,2-d]pyrimidin-4-one,
2-amino-1,5-dihydro-7-(3-pyridinylmethyl)-, hydrochloride