(Triphenyl-λ5-phosphanylidene)-acetic acid (8R,9S,10R,13S,14S,17R)-17-ethynyl-13-methyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-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 88663-53-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,8,6,6 and 3 respectively; the second part has 2 digits, 5 and 3 respectively. Calculate Digit Verification of CAS Registry Number 88663-53: (7*8)+(6*8)+(5*6)+(4*6)+(3*3)+(2*5)+(1*3)=180 180 % 10 = 0 So 88663-53-0 is a valid CAS Registry Number.
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