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9-ethyl-6-iodocarbazole-3-carboxylic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

855178-85-7

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855178-85-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 855178-85-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,5,1,7 and 8 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 855178-85:
(8*8)+(7*5)+(6*5)+(5*1)+(4*7)+(3*8)+(2*8)+(1*5)=207
207 % 10 = 7
So 855178-85-7 is a valid CAS Registry Number.

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