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Toluene-4-sulfonic acid (1S,2R,7R,9R,11S)-2-(tert-butyl-dimethyl-silanyloxymethyl)-1,5-dimethyl-12-methylene-8-oxa-tricyclo[7.2.1.02,7]dodec-5-en-11-yl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

82891-12-1

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82891-12-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 82891-12-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,8,9 and 1 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 82891-12:
(7*8)+(6*2)+(5*8)+(4*9)+(3*1)+(2*1)+(1*2)=151
151 % 10 = 1
So 82891-12-1 is a valid CAS Registry Number.

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