The CAS Registry Mumber 15139-34-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,1,3 and 9 respectively; the second part has 2 digits, 3 and 4 respectively. Calculate Digit Verification of CAS Registry Number 15139-34: (7*1)+(6*5)+(5*1)+(4*3)+(3*9)+(2*3)+(1*4)=91 91 % 10 = 1 So 15139-34-1 is a valid CAS Registry Number.
Get Best Price for15139-34-1Toluene-4-sulfonic acid (S)-1-[(S)-1-((3S,8S,9S,10R,13S,14S,17R)-3-methoxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-ethyl]-3,4-dimethyl-pentyl ester