(4aR,5aR,8aS,8bR)-2-{Bis-[1-(4-chloro-phenyl)-2,5-dioxo-pyrrolidin-3-yl]-methyl}-7-(4-chloro-phenyl)-4a-methyl-4a,5a,8a,8b-tetrahydro-pyrrolo[3',4':4,5]furo[3,2-b]pyridine-6,8-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 134220-52-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,2,2 and 0 respectively; the second part has 2 digits, 5 and 2 respectively. Calculate Digit Verification of CAS Registry Number 134220-52: (8*1)+(7*3)+(6*4)+(5*2)+(4*2)+(3*0)+(2*5)+(1*2)=83 83 % 10 = 3 So 134220-52-3 is a valid CAS Registry Number.
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