(5S,6S,7S)-5-(2-Bromo-3,4,5-trimethoxy-phenyl)-7-hydroxymethyl-5,6,7,8-tetrahydro-naphtho[2,3-d][1,3]dioxole-6-carboxylic acid methyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 139219-13-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,2,1 and 9 respectively; the second part has 2 digits, 1 and 3 respectively. Calculate Digit Verification of CAS Registry Number 139219-13: (8*1)+(7*3)+(6*9)+(5*2)+(4*1)+(3*9)+(2*1)+(1*3)=129 129 % 10 = 9 So 139219-13-9 is a valid CAS Registry Number.
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