Acetic acid (2R,3S,4R,5R,6S)-3-acetoxy-2-acetoxymethyl-6-[dimethyl-(1,1,2-trimethyl-propyl)-silanyloxy]-5-(4,5,6,7-tetrachloro-1,3-dioxo-1,3-dihydro-isoindol-2-yl)-tetrahydro-pyran-4-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 217814-70-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,7,8,1 and 4 respectively; the second part has 2 digits, 7 and 0 respectively. Calculate Digit Verification of CAS Registry Number 217814-70: (8*2)+(7*1)+(6*7)+(5*8)+(4*1)+(3*4)+(2*7)+(1*0)=135 135 % 10 = 5 So 217814-70-5 is a valid CAS Registry Number.
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