(3R,4S,5S,8S,9S,10S,13S,14S)-3-Hydroxy-4,8,10,14-tetramethyl-tetradecahydro-cyclopenta[a]phenanthrene-11,17-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 13263-13-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,2,6 and 3 respectively; the second part has 2 digits, 1 and 3 respectively. Calculate Digit Verification of CAS Registry Number 13263-13: (7*1)+(6*3)+(5*2)+(4*6)+(3*3)+(2*1)+(1*3)=73 73 % 10 = 3 So 13263-13-3 is a valid CAS Registry Number.