4-formylphenyl 4-(acetylamino)benzenesulfonate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 432000-22-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,2,0,0 and 0 respectively; the second part has 2 digits, 2 and 2 respectively. Calculate Digit Verification of CAS Registry Number 432000-22: (8*4)+(7*3)+(6*2)+(5*0)+(4*0)+(3*0)+(2*2)+(1*2)=71 71 % 10 = 1 So 432000-22-1 is a valid CAS Registry Number.
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