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1231256-15-7

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1231256-15-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1231256-15-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,1,2,5 and 6 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1231256-15:
(9*1)+(8*2)+(7*3)+(6*1)+(5*2)+(4*5)+(3*6)+(2*1)+(1*5)=107
107 % 10 = 7
So 1231256-15-7 is a valid CAS Registry Number.

1231256-15-7Downstream Products

1231256-15-7Relevant articles and documents

Expedient synthesis of functionalized conjugated enynes: Palladium-catalyzed bromoalkynylation of alkynes

Li, Yibiao,Liu, Xiaohang,Jiang, Huanfeng,Feng, Zhenning

supporting information; experimental part, p. 3338 - 3341 (2010/07/10)

(Chemical Equation Presented) Side by side: Direct cis addition of bro-moalkynes 1 to various alkynes 2 was found to proceed in the presence of a PdII catalyst to give difunctionalized enyne products 3. The method is facile for the synthesis of bromo alkenynes. Further-more, an unusual mechanism is pro-posed.

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