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(E)-(S)-[(1R,2R,4R)-4-(tert-butyldimethylsilyloxy)-2-(formyl)cyclopentyl]-4-(tert-butyldimethylsilyloxy)but-2-ynoic acid ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

457100-58-2

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457100-58-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 457100-58-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,5,7,1,0 and 0 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 457100-58:
(8*4)+(7*5)+(6*7)+(5*1)+(4*0)+(3*0)+(2*5)+(1*8)=132
132 % 10 = 2
So 457100-58-2 is a valid CAS Registry Number.

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