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6-Ethyl-1,2,3-trimethoxy-5-methyl-5,6-dihydro-phenanthro[2,3-d][1,3]dioxole-5,6-diol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

74809-75-9

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74809-75-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74809-75-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,8,0 and 9 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 74809-75:
(7*7)+(6*4)+(5*8)+(4*0)+(3*9)+(2*7)+(1*5)=159
159 % 10 = 9
So 74809-75-9 is a valid CAS Registry Number.

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