Benzene,
1,1',1'',1'''-(1,4-dimethoxy-1,2,3,4-butanetetrayl)tetrakis[4-methoxy- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 67307-23-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,3,0 and 7 respectively; the second part has 2 digits, 2 and 3 respectively. Calculate Digit Verification of CAS Registry Number 67307-23: (7*6)+(6*7)+(5*3)+(4*0)+(3*7)+(2*2)+(1*3)=127 127 % 10 = 7 So 67307-23-7 is a valid CAS Registry Number.
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1,1',1'',1'''-(1,4-dimethoxy-1,2,3,4-butanetetrayl)tetrakis[4-methoxy-