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3-(tert-Butyl-dimethyl-silanyloxy)-4-methyl-pent-3-enoic acid ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

42201-87-6

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42201-87-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 42201-87-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,2,0 and 1 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 42201-87:
(7*4)+(6*2)+(5*2)+(4*0)+(3*1)+(2*8)+(1*7)=76
76 % 10 = 6
So 42201-87-6 is a valid CAS Registry Number.

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