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914223-71-5

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914223-71-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 914223-71-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,4,2,2 and 3 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 914223-71:
(8*9)+(7*1)+(6*4)+(5*2)+(4*2)+(3*3)+(2*7)+(1*1)=145
145 % 10 = 5
So 914223-71-5 is a valid CAS Registry Number.

914223-71-5Relevant articles and documents

Ring contraction of bridgehead sultams by photoinduced di-π-methane rearrangement

Dura, Robert D.,Paquette, Leo A.

, p. 2456 - 2459 (2006)

Triplet-sensitized irradiation of 8-thia-9-azatricyclo[7.2.1.0 2'7]dodeca-2,4,6,10-tetraene (16) in acetone solution gives rise exclusively to tetracyclic sultam 20. This strong preference for benzo-vinyl bridging distal to the sulfonamide func

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