(5S,8S,9S,10R,13R,14S,17R)-10,13-Dimethyl-17-((1R,4R)-1,4,5-trimethyl-hexyl)-1,4,5,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-cyclopenta[a]phenanthren-6-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 28398-89-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,3,9 and 8 respectively; the second part has 2 digits, 8 and 9 respectively. Calculate Digit Verification of CAS Registry Number 28398-89: (7*2)+(6*8)+(5*3)+(4*9)+(3*8)+(2*8)+(1*9)=162 162 % 10 = 2 So 28398-89-2 is a valid CAS Registry Number.
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