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236739-30-3

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236739-30-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 236739-30-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,3,6,7,3 and 9 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 236739-30:
(8*2)+(7*3)+(6*6)+(5*7)+(4*3)+(3*9)+(2*3)+(1*0)=153
153 % 10 = 3
So 236739-30-3 is a valid CAS Registry Number.

236739-30-3Relevant articles and documents

Synthesis of Polyhalogenated 2-Cyclohexane-1,4-dione Derivatives Containing Hydrogen at the sp3-Carbon Atoms from N-Arylsulfonyl-p-quinonimines and N,N'-Bis(arylsulfonyl)-p-quinonediimines

Avdeenko, A. P.,Zhukova, S. A.

, p. 388 - 396 (2007/10/03)

Chlorination and bromination of N-arylsulfonyl-1,4-benzo(naphtho)quinonimines, N,N'-bis(arylsulfonyl)-1,4-benzoquinonediimines, N-arylsulfonyl-4-aminophenols, and N-arylsulfonyl-4-aminonaphthols gave a number of stable polyhalogenated structures containing hydrogen at the sp3-hybridized carbon atoms. The chlorination and bromination schemes of N-arylsulfonyl-p-quinonimines are discussed.

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