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(E)-1-(3-Nitro-phenyl)-3-((3aR,5R,5aS,8aS,8bR)-2,2,7,7-tetramethyl-tetrahydro-bis[1,3]dioxolo[4,5-b;4',5'-d]pyran-5-yl)-propenone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

77312-91-5

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77312-91-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77312-91-5 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 1 respectively.
Calculate Digit Verification of CAS Registry Number 77312-91:
(7*7)+(6*7)+(5*3)+(4*1)+(3*2)+(2*9)+(1*1)=135
135 % 10 = 5
So 77312-91-5 is a valid CAS Registry Number.

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