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4-carboxymethoxy-3-formyl-2-hydroxy-benzoic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

855641-50-8

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855641-50-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 855641-50-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,5,6,4 and 1 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 855641-50:
(8*8)+(7*5)+(6*5)+(5*6)+(4*4)+(3*1)+(2*5)+(1*0)=188
188 % 10 = 8
So 855641-50-8 is a valid CAS Registry Number.

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