The CAS Registry Mumber 2563-38-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,5,6 and 3 respectively; the second part has 2 digits, 3 and 8 respectively. Calculate Digit Verification of CAS Registry Number 2563-38: (6*2)+(5*5)+(4*6)+(3*3)+(2*3)+(1*8)=84 84 % 10 = 4 So 2563-38-4 is a valid CAS Registry Number.
Get Best Price for2563-38-4Acetic acid (3S,5S,8R,9S,10S,13S,14S,17R)-17-hydroxy-10,13-dimethyl-17-[(R)-1-(toluene-4-sulfonyloxy)-ethyl]-hexadecahydro-cyclopenta[a]phenanthren-3-yl ester