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86911-85-5

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86911-85-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 86911-85-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,6,9,1 and 1 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 86911-85:
(7*8)+(6*6)+(5*9)+(4*1)+(3*1)+(2*8)+(1*5)=165
165 % 10 = 5
So 86911-85-5 is a valid CAS Registry Number.

86911-85-5Relevant articles and documents

Synthesis of 5,8-dimethoxynaphtho[2,3-c]furan-4(9H)-one

Piggott, Matthew J.,Wege, Dieter

, p. 3550 - 3556 (2006)

The synthesis of the title compound, which shares its skeleton with a number of biologically active natural products, is described. The key steps are construction of a 3,4-disubstituted furan by a tandem Diels-Alder-retro-Diels- Alder reaction of an alkyne with 4-phenyloxazole, and an intramolecular Friedel-Crafts acylation.

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