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2,6,6-Trimethyl-1-<3,7,12,16-tetramethyl-18-(2,6,6-trimethyl-cyclohex-2-enyliden)-octadeca-2,4,6,8,10,12,14,16-octaenyliden>-cyclohex-2-en-4-on is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

28840-18-8

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28840-18-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 28840-18-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,8,4 and 0 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 28840-18:
(7*2)+(6*8)+(5*8)+(4*4)+(3*0)+(2*1)+(1*8)=128
128 % 10 = 8
So 28840-18-8 is a valid CAS Registry Number.

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