(1S,2R,5R,6R,7S,8R,10R,12S,13S,17R)-5-Ethyl-7-hydroxy-2,6,8,10,12,15,15,17-octamethyl-4,14,16-trioxa-bicyclo[11.3.1]heptadecane-3,9-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 77405-56-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,4,0 and 5 respectively; the second part has 2 digits, 5 and 6 respectively. Calculate Digit Verification of CAS Registry Number 77405-56: (7*7)+(6*7)+(5*4)+(4*0)+(3*5)+(2*5)+(1*6)=142 142 % 10 = 2 So 77405-56-2 is a valid CAS Registry Number.
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