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zinc(II) 5-(4-bromophenyl)-2,8-diethyl-13,17-bis(methoxycarbonylethyl)-3,7,12,18-tetramethylporphyrin is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

179690-80-3

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179690-80-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 179690-80-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,9,6,9 and 0 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 179690-80:
(8*1)+(7*7)+(6*9)+(5*6)+(4*9)+(3*0)+(2*8)+(1*0)=193
193 % 10 = 3
So 179690-80-3 is a valid CAS Registry Number.
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