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(R)-Methyl 4-((3R,5S,8S,9S,10S,13R,14S,17R)-3-(tert-butyldimethylsilyloxy)-10,13-dimethyl-7-(trimethylsilyloxy)-2,3,4,5,8,9,10,11,12,13,14,15,16,17-Tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

91097-40-4

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91097-40-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91097-40-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,0,9 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 91097-40:
(7*9)+(6*1)+(5*0)+(4*9)+(3*7)+(2*4)+(1*0)=134
134 % 10 = 4
So 91097-40-4 is a valid CAS Registry Number.

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