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253435-21-1

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253435-21-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 253435-21-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,3,4,3 and 5 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 253435-21:
(8*2)+(7*5)+(6*3)+(5*4)+(4*3)+(3*5)+(2*2)+(1*1)=121
121 % 10 = 1
So 253435-21-1 is a valid CAS Registry Number.

253435-21-1Downstream Products

253435-21-1Relevant articles and documents

Application of Hantzsch Ester and Meyer Nitrile in Radical Alkynylation Reactions

Liu, Xu,Liu, Ruoyu,Dai, Jie,Cheng, Xu,Li, Guigen

supporting information, p. 6906 - 6909 (2018/10/25)

The first example of constructing a Csp3-Csp bond with substituted Hantzsch ester and Meyer nitrile is reported. When benziodoxole-activated alkyne was applied as the alkynyl donor, products containing Csp3-Csp bonds involving primary, secondary, and tertiary carbon centers were achieved in up to 97% yields. K2S2O8 was the optimum radical initiator in this reaction.

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