(2Z,4E,6R,7R,8S,9S,10R,12E)-7,9-ditriethylsilyloxy-8-ethyl-13-iodo-2-methoxy-4,6,10,12-tetramethyltrideca-2,4,12-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 273944-77-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,3,9,4 and 4 respectively; the second part has 2 digits, 7 and 7 respectively. Calculate Digit Verification of CAS Registry Number 273944-77: (8*2)+(7*7)+(6*3)+(5*9)+(4*4)+(3*4)+(2*7)+(1*7)=177 177 % 10 = 7 So 273944-77-7 is a valid CAS Registry Number.
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