Trifluoro-methanesulfonic acid (2R,3R,4S,5R,6R)-3,4,5-trimethoxy-6-((2R,3R,4S,5R,6R)-3,4,5-trimethoxy-6-trifluoromethanesulfonyloxymethyl-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-2-ylmethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 658043-57-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,8,0,4 and 3 respectively; the second part has 2 digits, 5 and 7 respectively. Calculate Digit Verification of CAS Registry Number 658043-57: (8*6)+(7*5)+(6*8)+(5*0)+(4*4)+(3*3)+(2*5)+(1*7)=173 173 % 10 = 3 So 658043-57-3 is a valid CAS Registry Number.
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