4,19-bis-(toluene-4-sulfonyl)-10,13,25,28,33,36,41,44-octaoxa-1,4,7,16,19,22-hexaaza-tricyclo[20.8.8.87,16]hexatetracontane-2,6,17,21-tetraone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 49811-33-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,9,8,1 and 1 respectively; the second part has 2 digits, 3 and 3 respectively. Calculate Digit Verification of CAS Registry Number 49811-33: (7*4)+(6*9)+(5*8)+(4*1)+(3*1)+(2*3)+(1*3)=138 138 % 10 = 8 So 49811-33-8 is a valid CAS Registry Number.
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