The CAS Registry Mumber 77735-20-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,7,3 and 5 respectively; the second part has 2 digits, 2 and 0 respectively. Calculate Digit Verification of CAS Registry Number 77735-20: (7*7)+(6*7)+(5*7)+(4*3)+(3*5)+(2*2)+(1*0)=157 157 % 10 = 7 So 77735-20-7 is a valid CAS Registry Number.
Get Best Price for77735-20-7Acetic acid (2R,3S,4R,5R,6S)-6-acetoxy-5-acetylamino-3-((2S,3S,4R,5S,6R)-4,5-diacetoxy-6-acetoxymethyl-3-acetylamino-tetrahydro-pyran-2-yloxy)-4-hydroxy-tetrahydro-pyran-2-ylmethyl ester