(3S,6R,7S,8S,15S)(9Z,12Z,16E)-3,7-bis(1,1,2,2-tetramethyl-1-silapropoxy)-15-hydroxy-4,4,6,8,12,16-hexamethyl-17-(2-methyl(1,3-thiazol-4-yl))-5-oxoheptadeca-9,12,16-trienoic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 220889-55-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,8,8 and 9 respectively; the second part has 2 digits, 5 and 5 respectively. Calculate Digit Verification of CAS Registry Number 220889-55: (8*2)+(7*2)+(6*0)+(5*8)+(4*8)+(3*9)+(2*5)+(1*5)=144 144 % 10 = 4 So 220889-55-4 is a valid CAS Registry Number.
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