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87843-08-1

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87843-08-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87843-08-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,8,4 and 3 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 87843-08:
(7*8)+(6*7)+(5*8)+(4*4)+(3*3)+(2*0)+(1*8)=171
171 % 10 = 1
So 87843-08-1 is a valid CAS Registry Number.

87843-08-1Relevant articles and documents

Cycloadducts of Phenylsulfonyl Cyanide N-Oxide and N-Substituted 1,2-Dihydropyridines. Regio- and Stereospecifity

Dubey, Sushil K.,Knaus, Edward E.

, p. 123 - 125 (2007/10/02)

The regiospecific 1,3-dipolar cycloaddition reaction of phenylsulfonyl cyanide N-oxide with N-substituted 1,2-dihydropyridines (1) affords 3-(phenylsulfonyl)-3a,4,5,7a-tetrahydropyridoisoxazoles (2).The stereochemical features of the cycloadducts 2

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