methyl 2-((4-(3-nitrophenyl)-2-oxo-2H-chromen-7-yl)oxy)acetate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 300839-85-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,0,8,3 and 9 respectively; the second part has 2 digits, 8 and 5 respectively. Calculate Digit Verification of CAS Registry Number 300839-85: (8*3)+(7*0)+(6*0)+(5*8)+(4*3)+(3*9)+(2*8)+(1*5)=124 124 % 10 = 4 So 300839-85-4 is a valid CAS Registry Number.
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