Hexanedioic acid, polymer with 1,4-butanediol, carbonic acid, 1,2-ethanediol, 1,6-hexanediol and 1,1'-methylenebis[4-isocyanatobenzene] is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 55644-67-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,6,4 and 4 respectively; the second part has 2 digits, 6 and 7 respectively. Calculate Digit Verification of CAS Registry Number 55644-67: (7*5)+(6*5)+(5*6)+(4*4)+(3*4)+(2*6)+(1*7)=142 142 % 10 = 2 So 55644-67-2 is a valid CAS Registry Number.
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