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1222989-91-4

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1222989-91-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1222989-91-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,2,9,8 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1222989-91:
(9*1)+(8*2)+(7*2)+(6*2)+(5*9)+(4*8)+(3*9)+(2*9)+(1*1)=174
174 % 10 = 4
So 1222989-91-4 is a valid CAS Registry Number.

1222989-91-4Downstream Products

1222989-91-4Relevant articles and documents

Synthesis of α,α′-linked oligophospholes and polyphospholes by using Pd-CuI-promoted stille-type coupling

Saito, Arihiro,Matano, Yoshihiro,Imahori, Hiroshi

supporting information; experimental part, p. 2675 - 2677 (2010/08/22)

Palladium-copper-promoted Stille-type cross-coupling reactions between α-stannylphospholes and α-iodophospholes afforded α,α′-linked oligophospholes and polyphosphole efficiently. It has been revealed that the polyphosphole P-oxide possesses an extremely narrow band gap and a high electron-accepting ability as compared to polythiophene.

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