(4E,6Z,10Z,12E)-2,2,15,15-Tetramethyl-7,10-bis-[(E)-2-(2-trimethylsilanylethynyl-phenyl)-vinyl]-hexadeca-4,6,10,12-tetraen-8-yne-3,14-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 68243-39-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,2,4 and 3 respectively; the second part has 2 digits, 3 and 9 respectively. Calculate Digit Verification of CAS Registry Number 68243-39: (7*6)+(6*8)+(5*2)+(4*4)+(3*3)+(2*3)+(1*9)=140 140 % 10 = 0 So 68243-39-0 is a valid CAS Registry Number.
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