(8R,9S,13S,14S,17S)-17-Hydroxy-3-methoxy-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthrene-17-carbaldehyde is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 21887-08-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,8,8 and 7 respectively; the second part has 2 digits, 0 and 8 respectively. Calculate Digit Verification of CAS Registry Number 21887-08: (7*2)+(6*1)+(5*8)+(4*8)+(3*7)+(2*0)+(1*8)=121 121 % 10 = 1 So 21887-08-1 is a valid CAS Registry Number.
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