(5S,8R,11S,13aR)-5-(6-Hydroxy-oct-7-ynyl)-8,11-dimethyl-decahydro-3a,6,9,12-tetraaza-cyclopentacyclododecene-4,7,10,13-tetraone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 89311-45-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,3,1 and 1 respectively; the second part has 2 digits, 4 and 5 respectively. Calculate Digit Verification of CAS Registry Number 89311-45: (7*8)+(6*9)+(5*3)+(4*1)+(3*1)+(2*4)+(1*5)=145 145 % 10 = 5 So 89311-45-5 is a valid CAS Registry Number.
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