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72982-85-5

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72982-85-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 72982-85-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,9,8 and 2 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 72982-85:
(7*7)+(6*2)+(5*9)+(4*8)+(3*2)+(2*8)+(1*5)=165
165 % 10 = 5
So 72982-85-5 is a valid CAS Registry Number.

72982-85-5Downstream Products

72982-85-5Relevant articles and documents

Intramolecular Diels-Alder Additions. 2. Photochemical and Wagner-Meerwein Rearrangements of 9,12-Bridged Ethenoanthracenes

Ciganek, Engelbert

, p. 1505 - 1512 (2007/10/02)

The direct photolysis of 9,12-bridged ethenoanthracenes, readily accessible by intermolecular Diels-Alder reaction of suitably 9-substituted anthracenes, gives fused dibenzocyclooctatetraenes of type 2.Sensitized photolysis produces mixtures of the two isomeric dibenzosemibullvalenes, e.g., 12 and 13.Acid-catalyzed Wagner-Meerwein rearrangements of benzenobenzisoindoles of types 22 and 25 followed by reduction leads to trans- and cis-tetrahydromethanodibenzocycloheptapyrroles 27 and 28.

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