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2-Desoxy-D-manno-heptose-(2,5-dichlor-phenylhydrazon) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

16749-91-0

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16749-91-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 16749-91-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,7,4 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 16749-91:
(7*1)+(6*6)+(5*7)+(4*4)+(3*9)+(2*9)+(1*1)=140
140 % 10 = 0
So 16749-91-0 is a valid CAS Registry Number.

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