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(2Z,4E)-3-Ethynyl-5-phenyl-penta-2,4-dienal is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

73249-17-9

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73249-17-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 73249-17-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,2,4 and 9 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 73249-17:
(7*7)+(6*3)+(5*2)+(4*4)+(3*9)+(2*1)+(1*7)=129
129 % 10 = 9
So 73249-17-9 is a valid CAS Registry Number.

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