Naphthalene, 2-ethoxy-3-methoxy- (9CI) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 374073-71-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,7,4,0,7 and 3 respectively; the second part has 2 digits, 7 and 1 respectively. Calculate Digit Verification of CAS Registry Number 374073-71: (8*3)+(7*7)+(6*4)+(5*0)+(4*7)+(3*3)+(2*7)+(1*1)=149 149 % 10 = 9 So 374073-71-9 is a valid CAS Registry Number.
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