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3-ethyl-1,2,4-trimethylpyrrole is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

136558-79-7

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136558-79-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 136558-79-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,5,5 and 8 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 136558-79:
(8*1)+(7*3)+(6*6)+(5*5)+(4*5)+(3*8)+(2*7)+(1*9)=157
157 % 10 = 7
So 136558-79-7 is a valid CAS Registry Number.

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