Acetic acid (2R,3R,4R,5R)-2-acetoxymethyl-5-acetylamino-4-((2R,3R,4S,5S,6R)-3,4,5-triacetoxy-6-acetoxymethyl-tetrahydro-pyran-2-yloxy)-6-(2,2,2-trichloro-acetimidoyloxy)-tetrahydro-pyran-3-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 309761-67-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,9,7,6 and 1 respectively; the second part has 2 digits, 6 and 7 respectively. Calculate Digit Verification of CAS Registry Number 309761-67: (8*3)+(7*0)+(6*9)+(5*7)+(4*6)+(3*1)+(2*6)+(1*7)=159 159 % 10 = 9 So 309761-67-9 is a valid CAS Registry Number.
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