C-((3aR,4S,5aR,9aR,9bR)-2,2,4,8,8-Pentamethyl-tetrahydro-1,3,7,9-tetraoxa-5-aza-cyclopenta[a]naphthalen-5a-yl)-methylamine is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 219917-64-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,9,1 and 7 respectively; the second part has 2 digits, 6 and 4 respectively. Calculate Digit Verification of CAS Registry Number 219917-64: (8*2)+(7*1)+(6*9)+(5*9)+(4*1)+(3*7)+(2*6)+(1*4)=163 163 % 10 = 3 So 219917-64-3 is a valid CAS Registry Number.
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