(±)-(2RS,4RS,5SR,7SR,9SR,10SR)-9,10-dibromo-3,6-dioxatetracyclo[6.2.0.02,4.05,7]decane is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 54251-49-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,2,5 and 1 respectively; the second part has 2 digits, 4 and 9 respectively. Calculate Digit Verification of CAS Registry Number 54251-49: (7*5)+(6*4)+(5*2)+(4*5)+(3*1)+(2*4)+(1*9)=109 109 % 10 = 9 So 54251-49-9 is a valid CAS Registry Number.