(E)-1-(4-Bromo-phenyl)-3-((3aS,5aR,8aR,8bS)-2,2,7,7-tetramethyl-tetrahydro-bis[1,3]dioxolo[4,5-b;4',5'-d]pyran-3a-yl)-propenone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 77312-95-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,3,1 and 2 respectively; the second part has 2 digits, 9 and 5 respectively. Calculate Digit Verification of CAS Registry Number 77312-95: (7*7)+(6*7)+(5*3)+(4*1)+(3*2)+(2*9)+(1*5)=139 139 % 10 = 9 So 77312-95-9 is a valid CAS Registry Number.
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