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1-phenyl-butyn-(1)-one-(3)-seqcis-semicarbazone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

19210-20-9

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19210-20-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 19210-20-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,2,1 and 0 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 19210-20:
(7*1)+(6*9)+(5*2)+(4*1)+(3*0)+(2*2)+(1*0)=79
79 % 10 = 9
So 19210-20-9 is a valid CAS Registry Number.

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