(2S,4S,5R,6S)-6-tert-butyldimethylsiloxy-2-[(4'S)-2',2'-dimethyl-1',3'-dioxolan-4'-yl]-3,4,5,6-tetrahydro-2H-pyran-3-one-4,5-bis[spiro-4''-(2'',2''-dimethyl-1'',3''-dioxolane)] is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 219967-26-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,9,6 and 7 respectively; the second part has 2 digits, 2 and 6 respectively. Calculate Digit Verification of CAS Registry Number 219967-26: (8*2)+(7*1)+(6*9)+(5*9)+(4*6)+(3*7)+(2*2)+(1*6)=177 177 % 10 = 7 So 219967-26-7 is a valid CAS Registry Number.
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