(7S,5S)-methyl 3-benzyl-1,2,3,4,5,6,7,8-octahydro-5-<2-ξ-(1,3-dioxolan-2-yl)but-1-yl>-7-(15-vindolinyl)azonino<5,4-b>indole-7-carboxylate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 139166-31-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,1,6 and 6 respectively; the second part has 2 digits, 3 and 1 respectively. Calculate Digit Verification of CAS Registry Number 139166-31: (8*1)+(7*3)+(6*9)+(5*1)+(4*6)+(3*6)+(2*3)+(1*1)=137 137 % 10 = 7 So 139166-31-7 is a valid CAS Registry Number.
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