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(5-Hydroxymethyl-2,2-pentamethylene-1,3-dioxan-5-yl)amide of 4--phenylacetic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

77931-56-7

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77931-56-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77931-56-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,9,3 and 1 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 77931-56:
(7*7)+(6*7)+(5*9)+(4*3)+(3*1)+(2*5)+(1*6)=167
167 % 10 = 7
So 77931-56-7 is a valid CAS Registry Number.

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