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5-O-tert-butyldimethylsilyl-1,2-O-isopropylidene-β-L-idofuranurono-6,3-lactone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

136632-69-4

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136632-69-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 136632-69-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,6,3 and 2 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 136632-69:
(8*1)+(7*3)+(6*6)+(5*6)+(4*3)+(3*2)+(2*6)+(1*9)=134
134 % 10 = 4
So 136632-69-4 is a valid CAS Registry Number.

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