4-Nitro-benzoic acid (3S,5S,7R,10S,12S,13R,17R)-7,12-diacetoxy-17-(3-methoxycarbonyl-1-methyl-propyl)-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-3-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 28192-81-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,1,9 and 2 respectively; the second part has 2 digits, 8 and 1 respectively. Calculate Digit Verification of CAS Registry Number 28192-81: (7*2)+(6*8)+(5*1)+(4*9)+(3*2)+(2*8)+(1*1)=126 126 % 10 = 6 So 28192-81-6 is a valid CAS Registry Number.
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