(3E,6E,9E)-(5R,13S,14R)-5-Hydroxy-5,9,13,14-tetramethyl-oxacyclotetradeca-3,6,9-triene-2,8-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 177656-13-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,7,6,5 and 6 respectively; the second part has 2 digits, 1 and 3 respectively. Calculate Digit Verification of CAS Registry Number 177656-13: (8*1)+(7*7)+(6*7)+(5*6)+(4*5)+(3*6)+(2*1)+(1*3)=172 172 % 10 = 2 So 177656-13-2 is a valid CAS Registry Number.