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5-(Z)-benzylidene-2-oxo-2,5-dihydro-furan-3-carboxylic acid (2E,4E)-4-methyl-hexa-2,4-dienyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

57258-54-5

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57258-54-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 57258-54-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,2,5 and 8 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 57258-54:
(7*5)+(6*7)+(5*2)+(4*5)+(3*8)+(2*5)+(1*4)=145
145 % 10 = 5
So 57258-54-5 is a valid CAS Registry Number.

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