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85972-11-8

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85972-11-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 85972-11-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,5,9,7 and 2 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 85972-11:
(7*8)+(6*5)+(5*9)+(4*7)+(3*2)+(2*1)+(1*1)=168
168 % 10 = 8
So 85972-11-8 is a valid CAS Registry Number.

85972-11-8Relevant articles and documents

Preparation of 2,3-Dihetero-Substituted 1,3-Dienes from Brominated 2-Sulfolenes

Chou, Ta-shue,Lee, Shwu-Jiuan,Peng, Man-Li,Sun, Der-Jen,Chou, Shang-Shing Peter

, p. 3027 - 3031 (2007/10/02)

A general procedure for the preparation of 2,3-dihetero-substituted 1,3-butadienes is described.These dienes are obtained from the thermolysis of the corresponding 3,4-disubstituted 3-sulfolenes, which can be prepared by nucleophilic substitution reaction

A SIMPLE PREPARATION OF SEVERAL NEW 2,3- AND 1,2,3-SUBSTITUTED BUTA-1,3-DIENES FROM 1,4-DICHLOROBUTYNE

Bridges, Alexander J.,Fischer, John W.

, p. 445 - 446 (2007/10/02)

Addition of (pseudo) halogens across the triple bond of 1,4-dichlorobut-2-yne, followed by a 1,4-elimination, provides a very simple preparation of ten novel butadienes.

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