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(4S,6S)-6-Methyl-4-vinyl-tetrahydro-pyran-2-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

128669-86-3

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128669-86-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128669-86-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,6,6 and 9 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 128669-86:
(8*1)+(7*2)+(6*8)+(5*6)+(4*6)+(3*9)+(2*8)+(1*6)=173
173 % 10 = 3
So 128669-86-3 is a valid CAS Registry Number.

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