(2R,3R,4S,5S,6S)-5-(tert-Butyl-dimethyl-silanyloxy)-6-[(2S,3R,4S,5S,6R)-3-(tert-butyl-dimethyl-silanyloxy)-5-methoxy-6-methyl-2-triisopropylsilanyloxy-tetrahydro-pyran-4-yloxy]-2,4-dimethyl-tetrahydro-pyran-3,4-diol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 256413-41-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,6,4,1 and 3 respectively; the second part has 2 digits, 4 and 1 respectively. Calculate Digit Verification of CAS Registry Number 256413-41: (8*2)+(7*5)+(6*6)+(5*4)+(4*1)+(3*3)+(2*4)+(1*1)=129 129 % 10 = 9 So 256413-41-9 is a valid CAS Registry Number.
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