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(2R,3R,4R)-4-(tert-butyldimethylsilyloxy)methyl-2-hydroxy-3-methylbutyrolactone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

197777-39-2

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197777-39-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 197777-39-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,7,7,7 and 7 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 197777-39:
(8*1)+(7*9)+(6*7)+(5*7)+(4*7)+(3*7)+(2*3)+(1*9)=212
212 % 10 = 2
So 197777-39-2 is a valid CAS Registry Number.

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