Acetic acid (3S,5S,6S,10R,13S,17R)-3-acetoxy-17-acetyl-6-bromo-5-hydroxy-10,13-dimethyl-16-methylene-hexadecahydro-cyclopenta[a]phenanthren-17-yl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 42977-41-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,9,7 and 7 respectively; the second part has 2 digits, 4 and 1 respectively. Calculate Digit Verification of CAS Registry Number 42977-41: (7*4)+(6*2)+(5*9)+(4*7)+(3*7)+(2*4)+(1*1)=143 143 % 10 = 3 So 42977-41-3 is a valid CAS Registry Number.
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